1492 lines
72 KiB
C++
1492 lines
72 KiB
C++
// Copyright 2009-2021 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include "node_intersector.h"
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#if defined(__AVX2__)
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#define __FMA_X4__
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#endif
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#if defined(__aarch64__)
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#define __FMA_X4__
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#endif
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namespace embree
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{
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namespace isa
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{
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//////////////////////////////////////////////////////////////////////////////////////
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// Ray structure used in single-ray traversal
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//////////////////////////////////////////////////////////////////////////////////////
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template<int N, bool robust>
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struct TravRayBase;
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/* Base (without tnear and tfar) */
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template<int N>
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struct TravRayBase<N,false>
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{
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__forceinline TravRayBase() {}
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__forceinline TravRayBase(const Vec3fa& ray_org, const Vec3fa& ray_dir)
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: org_xyz(ray_org), dir_xyz(ray_dir)
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{
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const Vec3fa ray_rdir = rcp_safe(ray_dir);
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org = Vec3vf<N>(ray_org.x,ray_org.y,ray_org.z);
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dir = Vec3vf<N>(ray_dir.x,ray_dir.y,ray_dir.z);
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rdir = Vec3vf<N>(ray_rdir.x,ray_rdir.y,ray_rdir.z);
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#if defined(__FMA_X4__)
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const Vec3fa ray_org_rdir = ray_org*ray_rdir;
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#if !defined(__aarch64__)
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org_rdir = Vec3vf<N>(ray_org_rdir.x,ray_org_rdir.y,ray_org_rdir.z);
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#else
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//for aarch64, we do not have msub equal instruction, so we negeate orig and use madd
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//x86 will use msub
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neg_org_rdir = Vec3vf<N>(-ray_org_rdir.x,-ray_org_rdir.y,-ray_org_rdir.z);
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#endif
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#endif
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nearX = ray_rdir.x >= 0.0f ? 0*sizeof(vfloat<N>) : 1*sizeof(vfloat<N>);
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nearY = ray_rdir.y >= 0.0f ? 2*sizeof(vfloat<N>) : 3*sizeof(vfloat<N>);
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nearZ = ray_rdir.z >= 0.0f ? 4*sizeof(vfloat<N>) : 5*sizeof(vfloat<N>);
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farX = nearX ^ sizeof(vfloat<N>);
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farY = nearY ^ sizeof(vfloat<N>);
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farZ = nearZ ^ sizeof(vfloat<N>);
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}
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template<int K>
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__forceinline void init(size_t k, const Vec3vf<K>& ray_org, const Vec3vf<K>& ray_dir,
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const Vec3vf<K>& ray_rdir, const Vec3vi<K>& nearXYZ,
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size_t flip = sizeof(vfloat<N>))
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{
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org = Vec3vf<N>(ray_org.x[k], ray_org.y[k], ray_org.z[k]);
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dir = Vec3vf<N>(ray_dir.x[k], ray_dir.y[k], ray_dir.z[k]);
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rdir = Vec3vf<N>(ray_rdir.x[k], ray_rdir.y[k], ray_rdir.z[k]);
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#if defined(__FMA_X4__)
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#if !defined(__aarch64__)
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org_rdir = org*rdir;
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#else
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neg_org_rdir = -(org*rdir);
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#endif
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#endif
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nearX = nearXYZ.x[k];
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nearY = nearXYZ.y[k];
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nearZ = nearXYZ.z[k];
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farX = nearX ^ flip;
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farY = nearY ^ flip;
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farZ = nearZ ^ flip;
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}
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Vec3fa org_xyz, dir_xyz;
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Vec3vf<N> org, dir, rdir;
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#if defined(__FMA_X4__)
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#if !defined(__aarch64__)
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Vec3vf<N> org_rdir;
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#else
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//aarch64 version are keeping negation of the org_rdir and use madd
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//x86 uses msub
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Vec3vf<N> neg_org_rdir;
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#endif
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#endif
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size_t nearX, nearY, nearZ;
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size_t farX, farY, farZ;
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};
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/* Base (without tnear and tfar) */
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template<int N>
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struct TravRayBase<N,true>
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{
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__forceinline TravRayBase() {}
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__forceinline TravRayBase(const Vec3fa& ray_org, const Vec3fa& ray_dir)
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: org_xyz(ray_org), dir_xyz(ray_dir)
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{
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const float round_down = 1.0f-3.0f*float(ulp);
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const float round_up = 1.0f+3.0f*float(ulp);
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const Vec3fa ray_rdir = 1.0f/zero_fix(ray_dir);
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const Vec3fa ray_rdir_near = round_down*ray_rdir;
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const Vec3fa ray_rdir_far = round_up *ray_rdir;
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org = Vec3vf<N>(ray_org.x,ray_org.y,ray_org.z);
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dir = Vec3vf<N>(ray_dir.x,ray_dir.y,ray_dir.z);
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rdir_near = Vec3vf<N>(ray_rdir_near.x,ray_rdir_near.y,ray_rdir_near.z);
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rdir_far = Vec3vf<N>(ray_rdir_far .x,ray_rdir_far .y,ray_rdir_far .z);
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nearX = ray_rdir_near.x >= 0.0f ? 0*sizeof(vfloat<N>) : 1*sizeof(vfloat<N>);
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nearY = ray_rdir_near.y >= 0.0f ? 2*sizeof(vfloat<N>) : 3*sizeof(vfloat<N>);
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nearZ = ray_rdir_near.z >= 0.0f ? 4*sizeof(vfloat<N>) : 5*sizeof(vfloat<N>);
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farX = nearX ^ sizeof(vfloat<N>);
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farY = nearY ^ sizeof(vfloat<N>);
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farZ = nearZ ^ sizeof(vfloat<N>);
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}
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template<int K>
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__forceinline void init(size_t k, const Vec3vf<K>& ray_org, const Vec3vf<K>& ray_dir,
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const Vec3vf<K>& ray_rdir, const Vec3vi<K>& nearXYZ,
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size_t flip = sizeof(vfloat<N>))
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{
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const vfloat<N> round_down = 1.0f-3.0f*float(ulp);
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const vfloat<N> round_up = 1.0f+3.0f*float(ulp);
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org = Vec3vf<N>(ray_org.x[k], ray_org.y[k], ray_org.z[k]);
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dir = Vec3vf<N>(ray_dir.x[k], ray_dir.y[k], ray_dir.z[k]);
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rdir_near = round_down*Vec3vf<N>(ray_rdir.x[k], ray_rdir.y[k], ray_rdir.z[k]);
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rdir_far = round_up *Vec3vf<N>(ray_rdir.x[k], ray_rdir.y[k], ray_rdir.z[k]);
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nearX = nearXYZ.x[k];
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nearY = nearXYZ.y[k];
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nearZ = nearXYZ.z[k];
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farX = nearX ^ flip;
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farY = nearY ^ flip;
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farZ = nearZ ^ flip;
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}
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Vec3fa org_xyz, dir_xyz;
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Vec3vf<N> org, dir, rdir_near, rdir_far;
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size_t nearX, nearY, nearZ;
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size_t farX, farY, farZ;
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};
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/* Full (with tnear and tfar) */
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template<int N, bool robust>
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struct TravRay : TravRayBase<N,robust>
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{
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__forceinline TravRay() {}
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__forceinline TravRay(const Vec3fa& ray_org, const Vec3fa& ray_dir, float ray_tnear, float ray_tfar)
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: TravRayBase<N,robust>(ray_org, ray_dir),
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tnear(ray_tnear), tfar(ray_tfar) {}
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template<int K>
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__forceinline void init(size_t k, const Vec3vf<K>& ray_org, const Vec3vf<K>& ray_dir,
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const Vec3vf<K>& ray_rdir, const Vec3vi<K>& nearXYZ,
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float ray_tnear, float ray_tfar,
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size_t flip = sizeof(vfloat<N>))
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{
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TravRayBase<N,robust>::template init<K>(k, ray_org, ray_dir, ray_rdir, nearXYZ, flip);
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tnear = ray_tnear; tfar = ray_tfar;
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}
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vfloat<N> tnear;
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vfloat<N> tfar;
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};
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//////////////////////////////////////////////////////////////////////////////////////
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// Point Query structure used in single-ray traversal
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//////////////////////////////////////////////////////////////////////////////////////
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template<int N>
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struct TravPointQuery
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{
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__forceinline TravPointQuery() {}
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__forceinline TravPointQuery(const Vec3fa& query_org, const Vec3fa& query_rad)
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{
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org = Vec3vf<N>(query_org.x, query_org.y, query_org.z);
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rad = Vec3vf<N>(query_rad.x, query_rad.y, query_rad.z);
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}
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__forceinline vfloat<N> const& tfar() const {
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return rad.x;
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}
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Vec3vf<N> org, rad;
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};
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//////////////////////////////////////////////////////////////////////////////////////
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// point query
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//////////////////////////////////////////////////////////////////////////////////////
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template<int N>
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__forceinline size_t pointQuerySphereDistAndMask(
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const TravPointQuery<N>& query, vfloat<N>& dist, vfloat<N> const& minX, vfloat<N> const& maxX,
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vfloat<N> const& minY, vfloat<N> const& maxY, vfloat<N> const& minZ, vfloat<N> const& maxZ)
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{
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const vfloat<N> vX = min(max(query.org.x, minX), maxX) - query.org.x;
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const vfloat<N> vY = min(max(query.org.y, minY), maxY) - query.org.y;
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const vfloat<N> vZ = min(max(query.org.z, minZ), maxZ) - query.org.z;
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dist = vX * vX + vY * vY + vZ * vZ;
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const vbool<N> vmask = dist <= query.tfar()*query.tfar();
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const vbool<N> valid = minX <= maxX;
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return movemask(vmask) & movemask(valid);
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}
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template<int N>
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__forceinline size_t pointQueryNodeSphere(const typename BVHN<N>::AABBNode* node, const TravPointQuery<N>& query, vfloat<N>& dist)
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{
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const vfloat<N> minX = vfloat<N>::load((float*)((const char*)&node->lower_x));
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const vfloat<N> minY = vfloat<N>::load((float*)((const char*)&node->lower_y));
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const vfloat<N> minZ = vfloat<N>::load((float*)((const char*)&node->lower_z));
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const vfloat<N> maxX = vfloat<N>::load((float*)((const char*)&node->upper_x));
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const vfloat<N> maxY = vfloat<N>::load((float*)((const char*)&node->upper_y));
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const vfloat<N> maxZ = vfloat<N>::load((float*)((const char*)&node->upper_z));
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return pointQuerySphereDistAndMask(query, dist, minX, maxX, minY, maxY, minZ, maxZ);
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}
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template<int N>
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__forceinline size_t pointQueryNodeSphere(const typename BVHN<N>::AABBNodeMB* node, const TravPointQuery<N>& query, const float time, vfloat<N>& dist)
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{
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const vfloat<N>* pMinX = (const vfloat<N>*)((const char*)&node->lower_x);
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const vfloat<N>* pMinY = (const vfloat<N>*)((const char*)&node->lower_y);
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const vfloat<N>* pMinZ = (const vfloat<N>*)((const char*)&node->lower_z);
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const vfloat<N>* pMaxX = (const vfloat<N>*)((const char*)&node->upper_x);
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const vfloat<N>* pMaxY = (const vfloat<N>*)((const char*)&node->upper_y);
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const vfloat<N>* pMaxZ = (const vfloat<N>*)((const char*)&node->upper_z);
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const vfloat<N> minX = madd(time,pMinX[6],vfloat<N>(pMinX[0]));
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const vfloat<N> minY = madd(time,pMinY[6],vfloat<N>(pMinY[0]));
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const vfloat<N> minZ = madd(time,pMinZ[6],vfloat<N>(pMinZ[0]));
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const vfloat<N> maxX = madd(time,pMaxX[6],vfloat<N>(pMaxX[0]));
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const vfloat<N> maxY = madd(time,pMaxY[6],vfloat<N>(pMaxY[0]));
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const vfloat<N> maxZ = madd(time,pMaxZ[6],vfloat<N>(pMaxZ[0]));
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return pointQuerySphereDistAndMask(query, dist, minX, maxX, minY, maxY, minZ, maxZ);
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}
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template<int N>
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__forceinline size_t pointQueryNodeSphereMB4D(const typename BVHN<N>::NodeRef ref, const TravPointQuery<N>& query, const float time, vfloat<N>& dist)
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{
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const typename BVHN<N>::AABBNodeMB* node = ref.getAABBNodeMB();
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size_t mask = pointQueryNodeSphere(node, query, time, dist);
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if (unlikely(ref.isAABBNodeMB4D())) {
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const typename BVHN<N>::AABBNodeMB4D* node1 = (const typename BVHN<N>::AABBNodeMB4D*) node;
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const vbool<N> vmask = (node1->lower_t <= time) & (time < node1->upper_t);
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mask &= movemask(vmask);
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}
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return mask;
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}
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template<int N>
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__forceinline size_t pointQueryNodeSphere(const typename BVHN<N>::QuantizedBaseNode* node, const TravPointQuery<N>& query, vfloat<N>& dist)
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{
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const vfloat<N> start_x(node->start.x);
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const vfloat<N> scale_x(node->scale.x);
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const vfloat<N> minX = madd(node->template dequantize<N>((0*sizeof(vfloat<N>)) >> 2),scale_x,start_x);
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const vfloat<N> maxX = madd(node->template dequantize<N>((1*sizeof(vfloat<N>)) >> 2),scale_x,start_x);
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const vfloat<N> start_y(node->start.y);
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const vfloat<N> scale_y(node->scale.y);
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const vfloat<N> minY = madd(node->template dequantize<N>((2*sizeof(vfloat<N>)) >> 2),scale_y,start_y);
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const vfloat<N> maxY = madd(node->template dequantize<N>((3*sizeof(vfloat<N>)) >> 2),scale_y,start_y);
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const vfloat<N> start_z(node->start.z);
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const vfloat<N> scale_z(node->scale.z);
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const vfloat<N> minZ = madd(node->template dequantize<N>((4*sizeof(vfloat<N>)) >> 2),scale_z,start_z);
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const vfloat<N> maxZ = madd(node->template dequantize<N>((5*sizeof(vfloat<N>)) >> 2),scale_z,start_z);
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return pointQuerySphereDistAndMask(query, dist, minX, maxX, minY, maxY, minZ, maxZ) & movemask(node->validMask());
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}
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template<int N>
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__forceinline size_t pointQueryNodeSphere(const typename BVHN<N>::QuantizedBaseNodeMB* node, const TravPointQuery<N>& query, const float time, vfloat<N>& dist)
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{
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const vfloat<N> minX = node->dequantizeLowerX(time);
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const vfloat<N> maxX = node->dequantizeUpperX(time);
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const vfloat<N> minY = node->dequantizeLowerY(time);
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const vfloat<N> maxY = node->dequantizeUpperY(time);
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const vfloat<N> minZ = node->dequantizeLowerZ(time);
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const vfloat<N> maxZ = node->dequantizeUpperZ(time);
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return pointQuerySphereDistAndMask(query, dist, minX, maxX, minY, maxY, minZ, maxZ) & movemask(node->validMask());
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}
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template<int N>
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__forceinline size_t pointQueryNodeSphere(const typename BVHN<N>::OBBNode* node, const TravPointQuery<N>& query, vfloat<N>& dist)
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{
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// TODO: point query - implement
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const vbool<N> vmask = vbool<N>(true);
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const size_t mask = movemask(vmask) & ((1<<N)-1);
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dist = vfloat<N>(0.0f);
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return mask;
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}
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template<int N>
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__forceinline size_t pointQueryNodeSphere(const typename BVHN<N>::OBBNodeMB* node, const TravPointQuery<N>& query, const float time, vfloat<N>& dist)
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{
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// TODO: point query - implement
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const vbool<N> vmask = vbool<N>(true);
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const size_t mask = movemask(vmask) & ((1<<N)-1);
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dist = vfloat<N>(0.0f);
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return mask;
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}
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template<int N>
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__forceinline size_t pointQueryAABBDistAndMask(
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const TravPointQuery<N>& query, vfloat<N>& dist, vfloat<N> const& minX, vfloat<N> const& maxX,
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vfloat<N> const& minY, vfloat<N> const& maxY, vfloat<N> const& minZ, vfloat<N> const& maxZ)
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{
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const vfloat<N> vX = min(max(query.org.x, minX), maxX) - query.org.x;
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const vfloat<N> vY = min(max(query.org.y, minY), maxY) - query.org.y;
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const vfloat<N> vZ = min(max(query.org.z, minZ), maxZ) - query.org.z;
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dist = vX * vX + vY * vY + vZ * vZ;
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const vbool<N> valid = minX <= maxX;
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const vbool<N> vmask = !((maxX < query.org.x - query.rad.x) | (minX > query.org.x + query.rad.x) |
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(maxY < query.org.y - query.rad.y) | (minY > query.org.y + query.rad.y) |
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(maxZ < query.org.z - query.rad.z) | (minZ > query.org.z + query.rad.z));
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return movemask(vmask) & movemask(valid);
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}
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template<int N>
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__forceinline size_t pointQueryNodeAABB(const typename BVHN<N>::AABBNode* node, const TravPointQuery<N>& query, vfloat<N>& dist)
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{
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const vfloat<N> minX = vfloat<N>::load((float*)((const char*)&node->lower_x));
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const vfloat<N> minY = vfloat<N>::load((float*)((const char*)&node->lower_y));
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const vfloat<N> minZ = vfloat<N>::load((float*)((const char*)&node->lower_z));
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const vfloat<N> maxX = vfloat<N>::load((float*)((const char*)&node->upper_x));
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const vfloat<N> maxY = vfloat<N>::load((float*)((const char*)&node->upper_y));
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const vfloat<N> maxZ = vfloat<N>::load((float*)((const char*)&node->upper_z));
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return pointQueryAABBDistAndMask(query, dist, minX, maxX, minY, maxY, minZ, maxZ);
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}
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template<int N>
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__forceinline size_t pointQueryNodeAABB(const typename BVHN<N>::AABBNodeMB* node, const TravPointQuery<N>& query, const float time, vfloat<N>& dist)
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{
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const vfloat<N>* pMinX = (const vfloat<N>*)((const char*)&node->lower_x);
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const vfloat<N>* pMinY = (const vfloat<N>*)((const char*)&node->lower_y);
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const vfloat<N>* pMinZ = (const vfloat<N>*)((const char*)&node->lower_z);
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const vfloat<N>* pMaxX = (const vfloat<N>*)((const char*)&node->upper_x);
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const vfloat<N>* pMaxY = (const vfloat<N>*)((const char*)&node->upper_y);
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const vfloat<N>* pMaxZ = (const vfloat<N>*)((const char*)&node->upper_z);
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const vfloat<N> minX = madd(time,pMinX[6],vfloat<N>(pMinX[0]));
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const vfloat<N> minY = madd(time,pMinY[6],vfloat<N>(pMinY[0]));
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const vfloat<N> minZ = madd(time,pMinZ[6],vfloat<N>(pMinZ[0]));
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const vfloat<N> maxX = madd(time,pMaxX[6],vfloat<N>(pMaxX[0]));
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const vfloat<N> maxY = madd(time,pMaxY[6],vfloat<N>(pMaxY[0]));
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const vfloat<N> maxZ = madd(time,pMaxZ[6],vfloat<N>(pMaxZ[0]));
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return pointQueryAABBDistAndMask(query, dist, minX, maxX, minY, maxY, minZ, maxZ);
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}
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template<int N>
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__forceinline size_t pointQueryNodeAABBMB4D(const typename BVHN<N>::NodeRef ref, const TravPointQuery<N>& query, const float time, vfloat<N>& dist)
|
|
{
|
|
const typename BVHN<N>::AABBNodeMB* node = ref.getAABBNodeMB();
|
|
size_t mask = pointQueryNodeAABB(node, query, time, dist);
|
|
|
|
if (unlikely(ref.isAABBNodeMB4D())) {
|
|
const typename BVHN<N>::AABBNodeMB4D* node1 = (const typename BVHN<N>::AABBNodeMB4D*) node;
|
|
const vbool<N> vmask = (node1->lower_t <= time) & (time < node1->upper_t);
|
|
mask &= movemask(vmask);
|
|
}
|
|
|
|
return mask;
|
|
}
|
|
|
|
template<int N>
|
|
__forceinline size_t pointQueryNodeAABB(const typename BVHN<N>::QuantizedBaseNode* node, const TravPointQuery<N>& query, vfloat<N>& dist)
|
|
{
|
|
const size_t mvalid = movemask(node->validMask());
|
|
const vfloat<N> start_x(node->start.x);
|
|
const vfloat<N> scale_x(node->scale.x);
|
|
const vfloat<N> minX = madd(node->template dequantize<N>((0*sizeof(vfloat<N>)) >> 2),scale_x,start_x);
|
|
const vfloat<N> maxX = madd(node->template dequantize<N>((1*sizeof(vfloat<N>)) >> 2),scale_x,start_x);
|
|
const vfloat<N> start_y(node->start.y);
|
|
const vfloat<N> scale_y(node->scale.y);
|
|
const vfloat<N> minY = madd(node->template dequantize<N>((2*sizeof(vfloat<N>)) >> 2),scale_y,start_y);
|
|
const vfloat<N> maxY = madd(node->template dequantize<N>((3*sizeof(vfloat<N>)) >> 2),scale_y,start_y);
|
|
const vfloat<N> start_z(node->start.z);
|
|
const vfloat<N> scale_z(node->scale.z);
|
|
const vfloat<N> minZ = madd(node->template dequantize<N>((4*sizeof(vfloat<N>)) >> 2),scale_z,start_z);
|
|
const vfloat<N> maxZ = madd(node->template dequantize<N>((5*sizeof(vfloat<N>)) >> 2),scale_z,start_z);
|
|
return pointQueryAABBDistAndMask(query, dist, minX, maxX, minY, maxY, minZ, maxZ) & mvalid;
|
|
}
|
|
|
|
template<int N>
|
|
__forceinline size_t pointQueryNodeAABB(const typename BVHN<N>::QuantizedBaseNodeMB* node, const TravPointQuery<N>& query, const float time, vfloat<N>& dist)
|
|
{
|
|
const size_t mvalid = movemask(node->validMask());
|
|
const vfloat<N> minX = node->dequantizeLowerX(time);
|
|
const vfloat<N> maxX = node->dequantizeUpperX(time);
|
|
const vfloat<N> minY = node->dequantizeLowerY(time);
|
|
const vfloat<N> maxY = node->dequantizeUpperY(time);
|
|
const vfloat<N> minZ = node->dequantizeLowerZ(time);
|
|
const vfloat<N> maxZ = node->dequantizeUpperZ(time);
|
|
return pointQueryAABBDistAndMask(query, dist, minX, maxX, minY, maxY, minZ, maxZ) & mvalid;
|
|
}
|
|
|
|
template<int N>
|
|
__forceinline size_t pointQueryNodeAABB(const typename BVHN<N>::OBBNode* node, const TravPointQuery<N>& query, vfloat<N>& dist)
|
|
{
|
|
// TODO: point query - implement
|
|
const vbool<N> vmask = vbool<N>(true);
|
|
const size_t mask = movemask(vmask) & ((1<<N)-1);
|
|
dist = vfloat<N>(0.0f);
|
|
return mask;
|
|
}
|
|
|
|
template<int N>
|
|
__forceinline size_t pointQueryNodeAABB(const typename BVHN<N>::OBBNodeMB* node, const TravPointQuery<N>& query, const float time, vfloat<N>& dist)
|
|
{
|
|
// TODO: point query - implement
|
|
const vbool<N> vmask = vbool<N>(true);
|
|
const size_t mask = movemask(vmask) & ((1<<N)-1);
|
|
dist = vfloat<N>(0.0f);
|
|
return mask;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
// Fast AABBNode intersection
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
template<int N, bool robust>
|
|
__forceinline size_t intersectNode(const typename BVHN<N>::AABBNode* node, const TravRay<N,robust>& ray, vfloat<N>& dist);
|
|
|
|
template<>
|
|
__forceinline size_t intersectNode<4>(const typename BVH4::AABBNode* node, const TravRay<4,false>& ray, vfloat4& dist)
|
|
{
|
|
#if defined(__FMA_X4__)
|
|
#if defined(__aarch64__)
|
|
const vfloat4 tNearX = madd(vfloat4::load((float*)((const char*)&node->lower_x+ray.nearX)), ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat4 tNearY = madd(vfloat4::load((float*)((const char*)&node->lower_x+ray.nearY)), ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat4 tNearZ = madd(vfloat4::load((float*)((const char*)&node->lower_x+ray.nearZ)), ray.rdir.z, ray.neg_org_rdir.z);
|
|
const vfloat4 tFarX = madd(vfloat4::load((float*)((const char*)&node->lower_x+ray.farX )), ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat4 tFarY = madd(vfloat4::load((float*)((const char*)&node->lower_x+ray.farY )), ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat4 tFarZ = madd(vfloat4::load((float*)((const char*)&node->lower_x+ray.farZ )), ray.rdir.z, ray.neg_org_rdir.z);
|
|
#else
|
|
const vfloat4 tNearX = msub(vfloat4::load((float*)((const char*)&node->lower_x+ray.nearX)), ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat4 tNearY = msub(vfloat4::load((float*)((const char*)&node->lower_x+ray.nearY)), ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat4 tNearZ = msub(vfloat4::load((float*)((const char*)&node->lower_x+ray.nearZ)), ray.rdir.z, ray.org_rdir.z);
|
|
const vfloat4 tFarX = msub(vfloat4::load((float*)((const char*)&node->lower_x+ray.farX )), ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat4 tFarY = msub(vfloat4::load((float*)((const char*)&node->lower_x+ray.farY )), ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat4 tFarZ = msub(vfloat4::load((float*)((const char*)&node->lower_x+ray.farZ )), ray.rdir.z, ray.org_rdir.z);
|
|
#endif
|
|
#else
|
|
const vfloat4 tNearX = (vfloat4::load((float*)((const char*)&node->lower_x+ray.nearX)) - ray.org.x) * ray.rdir.x;
|
|
const vfloat4 tNearY = (vfloat4::load((float*)((const char*)&node->lower_x+ray.nearY)) - ray.org.y) * ray.rdir.y;
|
|
const vfloat4 tNearZ = (vfloat4::load((float*)((const char*)&node->lower_x+ray.nearZ)) - ray.org.z) * ray.rdir.z;
|
|
const vfloat4 tFarX = (vfloat4::load((float*)((const char*)&node->lower_x+ray.farX )) - ray.org.x) * ray.rdir.x;
|
|
const vfloat4 tFarY = (vfloat4::load((float*)((const char*)&node->lower_x+ray.farY )) - ray.org.y) * ray.rdir.y;
|
|
const vfloat4 tFarZ = (vfloat4::load((float*)((const char*)&node->lower_x+ray.farZ )) - ray.org.z) * ray.rdir.z;
|
|
#endif
|
|
|
|
#if defined(__aarch64__)
|
|
const vfloat4 tNear = maxi(tNearX, tNearY, tNearZ, ray.tnear);
|
|
const vfloat4 tFar = mini(tFarX, tFarY, tFarZ, ray.tfar);
|
|
const vbool4 vmask = asInt(tNear) <= asInt(tFar);
|
|
const size_t mask = movemask(vmask);
|
|
#elif defined(__SSE4_1__) && !defined(__AVX512F__) // up to HSW
|
|
const vfloat4 tNear = maxi(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat4 tFar = mini(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool4 vmask = asInt(tNear) > asInt(tFar);
|
|
const size_t mask = movemask(vmask) ^ ((1<<4)-1);
|
|
#elif defined(__AVX512F__) // SKX
|
|
const vfloat4 tNear = maxi(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat4 tFar = mini(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool4 vmask = asInt(tNear) <= asInt(tFar);
|
|
const size_t mask = movemask(vmask);
|
|
#else
|
|
const vfloat4 tNear = max(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat4 tFar = min(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool4 vmask = tNear <= tFar;
|
|
const size_t mask = movemask(vmask);
|
|
#endif
|
|
dist = tNear;
|
|
return mask;
|
|
}
|
|
|
|
#if defined(__AVX__)
|
|
|
|
template<>
|
|
__forceinline size_t intersectNode<8>(const typename BVH8::AABBNode* node, const TravRay<8,false>& ray, vfloat8& dist)
|
|
{
|
|
#if defined(__AVX2__)
|
|
#if defined(__aarch64__)
|
|
const vfloat8 tNearX = madd(vfloat8::load((float*)((const char*)&node->lower_x+ray.nearX)), ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat8 tNearY = madd(vfloat8::load((float*)((const char*)&node->lower_x+ray.nearY)), ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat8 tNearZ = madd(vfloat8::load((float*)((const char*)&node->lower_x+ray.nearZ)), ray.rdir.z, ray.neg_org_rdir.z);
|
|
const vfloat8 tFarX = madd(vfloat8::load((float*)((const char*)&node->lower_x+ray.farX )), ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat8 tFarY = madd(vfloat8::load((float*)((const char*)&node->lower_x+ray.farY )), ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat8 tFarZ = madd(vfloat8::load((float*)((const char*)&node->lower_x+ray.farZ )), ray.rdir.z, ray.neg_org_rdir.z);
|
|
#else
|
|
const vfloat8 tNearX = msub(vfloat8::load((float*)((const char*)&node->lower_x+ray.nearX)), ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat8 tNearY = msub(vfloat8::load((float*)((const char*)&node->lower_x+ray.nearY)), ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat8 tNearZ = msub(vfloat8::load((float*)((const char*)&node->lower_x+ray.nearZ)), ray.rdir.z, ray.org_rdir.z);
|
|
const vfloat8 tFarX = msub(vfloat8::load((float*)((const char*)&node->lower_x+ray.farX )), ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat8 tFarY = msub(vfloat8::load((float*)((const char*)&node->lower_x+ray.farY )), ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat8 tFarZ = msub(vfloat8::load((float*)((const char*)&node->lower_x+ray.farZ )), ray.rdir.z, ray.org_rdir.z);
|
|
#endif
|
|
|
|
#else
|
|
const vfloat8 tNearX = (vfloat8::load((float*)((const char*)&node->lower_x+ray.nearX)) - ray.org.x) * ray.rdir.x;
|
|
const vfloat8 tNearY = (vfloat8::load((float*)((const char*)&node->lower_x+ray.nearY)) - ray.org.y) * ray.rdir.y;
|
|
const vfloat8 tNearZ = (vfloat8::load((float*)((const char*)&node->lower_x+ray.nearZ)) - ray.org.z) * ray.rdir.z;
|
|
const vfloat8 tFarX = (vfloat8::load((float*)((const char*)&node->lower_x+ray.farX )) - ray.org.x) * ray.rdir.x;
|
|
const vfloat8 tFarY = (vfloat8::load((float*)((const char*)&node->lower_x+ray.farY )) - ray.org.y) * ray.rdir.y;
|
|
const vfloat8 tFarZ = (vfloat8::load((float*)((const char*)&node->lower_x+ray.farZ )) - ray.org.z) * ray.rdir.z;
|
|
#endif
|
|
|
|
#if defined(__AVX2__) && !defined(__AVX512F__) // HSW
|
|
const vfloat8 tNear = maxi(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat8 tFar = mini(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool8 vmask = asInt(tNear) > asInt(tFar);
|
|
const size_t mask = movemask(vmask) ^ ((1<<8)-1);
|
|
#elif defined(__AVX512F__) // SKX
|
|
const vfloat8 tNear = maxi(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat8 tFar = mini(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool8 vmask = asInt(tNear) <= asInt(tFar);
|
|
const size_t mask = movemask(vmask);
|
|
#else
|
|
const vfloat8 tNear = max(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat8 tFar = min(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool8 vmask = tNear <= tFar;
|
|
const size_t mask = movemask(vmask);
|
|
#endif
|
|
dist = tNear;
|
|
return mask;
|
|
}
|
|
|
|
#endif
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
// Robust AABBNode intersection
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
template<int N>
|
|
__forceinline size_t intersectNodeRobust(const typename BVHN<N>::AABBNode* node, const TravRay<N,true>& ray, vfloat<N>& dist)
|
|
{
|
|
const vfloat<N> tNearX = (vfloat<N>::load((float*)((const char*)&node->lower_x+ray.nearX)) - ray.org.x) * ray.rdir_near.x;
|
|
const vfloat<N> tNearY = (vfloat<N>::load((float*)((const char*)&node->lower_x+ray.nearY)) - ray.org.y) * ray.rdir_near.y;
|
|
const vfloat<N> tNearZ = (vfloat<N>::load((float*)((const char*)&node->lower_x+ray.nearZ)) - ray.org.z) * ray.rdir_near.z;
|
|
const vfloat<N> tFarX = (vfloat<N>::load((float*)((const char*)&node->lower_x+ray.farX )) - ray.org.x) * ray.rdir_far.x;
|
|
const vfloat<N> tFarY = (vfloat<N>::load((float*)((const char*)&node->lower_x+ray.farY )) - ray.org.y) * ray.rdir_far.y;
|
|
const vfloat<N> tFarZ = (vfloat<N>::load((float*)((const char*)&node->lower_x+ray.farZ )) - ray.org.z) * ray.rdir_far.z;
|
|
const vfloat<N> tNear = max(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat<N> tFar = min(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool<N> vmask = tNear <= tFar;
|
|
const size_t mask = movemask(vmask);
|
|
dist = tNear;
|
|
return mask;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
// Fast AABBNodeMB intersection
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
template<int N>
|
|
__forceinline size_t intersectNode(const typename BVHN<N>::AABBNodeMB* node, const TravRay<N,false>& ray, const float time, vfloat<N>& dist)
|
|
{
|
|
const vfloat<N>* pNearX = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearX);
|
|
const vfloat<N>* pNearY = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearY);
|
|
const vfloat<N>* pNearZ = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearZ);
|
|
const vfloat<N>* pFarX = (const vfloat<N>*)((const char*)&node->lower_x+ray.farX);
|
|
const vfloat<N>* pFarY = (const vfloat<N>*)((const char*)&node->lower_x+ray.farY);
|
|
const vfloat<N>* pFarZ = (const vfloat<N>*)((const char*)&node->lower_x+ray.farZ);
|
|
#if defined(__FMA_X4__)
|
|
#if defined(__aarch64__)
|
|
const vfloat<N> tNearX = madd(madd(time,pNearX[6],vfloat<N>(pNearX[0])), ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat<N> tNearY = madd(madd(time,pNearY[6],vfloat<N>(pNearY[0])), ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat<N> tNearZ = madd(madd(time,pNearZ[6],vfloat<N>(pNearZ[0])), ray.rdir.z, ray.neg_org_rdir.z);
|
|
const vfloat<N> tFarX = madd(madd(time,pFarX [6],vfloat<N>(pFarX [0])), ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat<N> tFarY = madd(madd(time,pFarY [6],vfloat<N>(pFarY [0])), ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat<N> tFarZ = madd(madd(time,pFarZ [6],vfloat<N>(pFarZ [0])), ray.rdir.z, ray.neg_org_rdir.z);
|
|
#else
|
|
const vfloat<N> tNearX = msub(madd(time,pNearX[6],vfloat<N>(pNearX[0])), ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat<N> tNearY = msub(madd(time,pNearY[6],vfloat<N>(pNearY[0])), ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat<N> tNearZ = msub(madd(time,pNearZ[6],vfloat<N>(pNearZ[0])), ray.rdir.z, ray.org_rdir.z);
|
|
const vfloat<N> tFarX = msub(madd(time,pFarX [6],vfloat<N>(pFarX [0])), ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat<N> tFarY = msub(madd(time,pFarY [6],vfloat<N>(pFarY [0])), ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat<N> tFarZ = msub(madd(time,pFarZ [6],vfloat<N>(pFarZ [0])), ray.rdir.z, ray.org_rdir.z);
|
|
#endif
|
|
#else
|
|
const vfloat<N> tNearX = (madd(time,pNearX[6],vfloat<N>(pNearX[0])) - ray.org.x) * ray.rdir.x;
|
|
const vfloat<N> tNearY = (madd(time,pNearY[6],vfloat<N>(pNearY[0])) - ray.org.y) * ray.rdir.y;
|
|
const vfloat<N> tNearZ = (madd(time,pNearZ[6],vfloat<N>(pNearZ[0])) - ray.org.z) * ray.rdir.z;
|
|
const vfloat<N> tFarX = (madd(time,pFarX [6],vfloat<N>(pFarX [0])) - ray.org.x) * ray.rdir.x;
|
|
const vfloat<N> tFarY = (madd(time,pFarY [6],vfloat<N>(pFarY [0])) - ray.org.y) * ray.rdir.y;
|
|
const vfloat<N> tFarZ = (madd(time,pFarZ [6],vfloat<N>(pFarZ [0])) - ray.org.z) * ray.rdir.z;
|
|
#endif
|
|
#if defined(__FMA_X4__) && !defined(__AVX512F__) // HSW
|
|
const vfloat<N> tNear = maxi(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat<N> tFar = mini(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool<N> vmask = asInt(tNear) > asInt(tFar);
|
|
const size_t mask = movemask(vmask) ^ ((1<<N)-1);
|
|
#elif defined(__AVX512F__) // SKX
|
|
const vfloat<N> tNear = maxi(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat<N> tFar = mini(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool<N> vmask = asInt(tNear) <= asInt(tFar);
|
|
const size_t mask = movemask(vmask);
|
|
#else
|
|
const vfloat<N> tNear = max(ray.tnear,tNearX,tNearY,tNearZ);
|
|
const vfloat<N> tFar = min(ray.tfar, tFarX ,tFarY ,tFarZ );
|
|
const vbool<N> vmask = tNear <= tFar;
|
|
const size_t mask = movemask(vmask);
|
|
#endif
|
|
dist = tNear;
|
|
return mask;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
// Robust AABBNodeMB intersection
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
template<int N>
|
|
__forceinline size_t intersectNodeRobust(const typename BVHN<N>::AABBNodeMB* node, const TravRay<N,true>& ray, const float time, vfloat<N>& dist)
|
|
{
|
|
const vfloat<N>* pNearX = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearX);
|
|
const vfloat<N>* pNearY = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearY);
|
|
const vfloat<N>* pNearZ = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearZ);
|
|
const vfloat<N> tNearX = (madd(time,pNearX[6],vfloat<N>(pNearX[0])) - ray.org.x) * ray.rdir_near.x;
|
|
const vfloat<N> tNearY = (madd(time,pNearY[6],vfloat<N>(pNearY[0])) - ray.org.y) * ray.rdir_near.y;
|
|
const vfloat<N> tNearZ = (madd(time,pNearZ[6],vfloat<N>(pNearZ[0])) - ray.org.z) * ray.rdir_near.z;
|
|
const vfloat<N> tNear = max(ray.tnear,tNearX,tNearY,tNearZ);
|
|
const vfloat<N>* pFarX = (const vfloat<N>*)((const char*)&node->lower_x+ray.farX);
|
|
const vfloat<N>* pFarY = (const vfloat<N>*)((const char*)&node->lower_x+ray.farY);
|
|
const vfloat<N>* pFarZ = (const vfloat<N>*)((const char*)&node->lower_x+ray.farZ);
|
|
const vfloat<N> tFarX = (madd(time,pFarX[6],vfloat<N>(pFarX[0])) - ray.org.x) * ray.rdir_far.x;
|
|
const vfloat<N> tFarY = (madd(time,pFarY[6],vfloat<N>(pFarY[0])) - ray.org.y) * ray.rdir_far.y;
|
|
const vfloat<N> tFarZ = (madd(time,pFarZ[6],vfloat<N>(pFarZ[0])) - ray.org.z) * ray.rdir_far.z;
|
|
const vfloat<N> tFar = min(ray.tfar,tFarX,tFarY,tFarZ);
|
|
const size_t mask = movemask(tNear <= tFar);
|
|
dist = tNear;
|
|
return mask;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
// Fast AABBNodeMB4D intersection
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
template<int N>
|
|
__forceinline size_t intersectNodeMB4D(const typename BVHN<N>::NodeRef ref, const TravRay<N,false>& ray, const float time, vfloat<N>& dist)
|
|
{
|
|
const typename BVHN<N>::AABBNodeMB* node = ref.getAABBNodeMB();
|
|
|
|
const vfloat<N>* pNearX = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearX);
|
|
const vfloat<N>* pNearY = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearY);
|
|
const vfloat<N>* pNearZ = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearZ);
|
|
const vfloat<N>* pFarX = (const vfloat<N>*)((const char*)&node->lower_x+ray.farX);
|
|
const vfloat<N>* pFarY = (const vfloat<N>*)((const char*)&node->lower_x+ray.farY);
|
|
const vfloat<N>* pFarZ = (const vfloat<N>*)((const char*)&node->lower_x+ray.farZ);
|
|
#if defined (__FMA_X4__)
|
|
#if defined(__aarch64__)
|
|
const vfloat<N> tNearX = madd(madd(time,pNearX[6],vfloat<N>(pNearX[0])), ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat<N> tNearY = madd(madd(time,pNearY[6],vfloat<N>(pNearY[0])), ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat<N> tNearZ = madd(madd(time,pNearZ[6],vfloat<N>(pNearZ[0])), ray.rdir.z, ray.neg_org_rdir.z);
|
|
const vfloat<N> tFarX = madd(madd(time,pFarX [6],vfloat<N>(pFarX [0])), ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat<N> tFarY = madd(madd(time,pFarY [6],vfloat<N>(pFarY [0])), ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat<N> tFarZ = madd(madd(time,pFarZ [6],vfloat<N>(pFarZ [0])), ray.rdir.z, ray.neg_org_rdir.z);
|
|
#else
|
|
const vfloat<N> tNearX = msub(madd(time,pNearX[6],vfloat<N>(pNearX[0])), ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat<N> tNearY = msub(madd(time,pNearY[6],vfloat<N>(pNearY[0])), ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat<N> tNearZ = msub(madd(time,pNearZ[6],vfloat<N>(pNearZ[0])), ray.rdir.z, ray.org_rdir.z);
|
|
const vfloat<N> tFarX = msub(madd(time,pFarX [6],vfloat<N>(pFarX [0])), ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat<N> tFarY = msub(madd(time,pFarY [6],vfloat<N>(pFarY [0])), ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat<N> tFarZ = msub(madd(time,pFarZ [6],vfloat<N>(pFarZ [0])), ray.rdir.z, ray.org_rdir.z);
|
|
#endif
|
|
#else
|
|
const vfloat<N> tNearX = (madd(time,pNearX[6],vfloat<N>(pNearX[0])) - ray.org.x) * ray.rdir.x;
|
|
const vfloat<N> tNearY = (madd(time,pNearY[6],vfloat<N>(pNearY[0])) - ray.org.y) * ray.rdir.y;
|
|
const vfloat<N> tNearZ = (madd(time,pNearZ[6],vfloat<N>(pNearZ[0])) - ray.org.z) * ray.rdir.z;
|
|
const vfloat<N> tFarX = (madd(time,pFarX [6],vfloat<N>(pFarX [0])) - ray.org.x) * ray.rdir.x;
|
|
const vfloat<N> tFarY = (madd(time,pFarY [6],vfloat<N>(pFarY [0])) - ray.org.y) * ray.rdir.y;
|
|
const vfloat<N> tFarZ = (madd(time,pFarZ [6],vfloat<N>(pFarZ [0])) - ray.org.z) * ray.rdir.z;
|
|
#endif
|
|
#if defined(__FMA_X4__) && !defined(__AVX512F__)
|
|
const vfloat<N> tNear = maxi(maxi(tNearX,tNearY),maxi(tNearZ,ray.tnear));
|
|
const vfloat<N> tFar = mini(mini(tFarX ,tFarY ),mini(tFarZ ,ray.tfar ));
|
|
#else
|
|
const vfloat<N> tNear = max(ray.tnear,tNearX,tNearY,tNearZ);
|
|
const vfloat<N> tFar = min(ray.tfar, tFarX ,tFarY ,tFarZ );
|
|
#endif
|
|
vbool<N> vmask = tNear <= tFar;
|
|
if (unlikely(ref.isAABBNodeMB4D())) {
|
|
const typename BVHN<N>::AABBNodeMB4D* node1 = (const typename BVHN<N>::AABBNodeMB4D*) node;
|
|
vmask &= (node1->lower_t <= time) & (time < node1->upper_t);
|
|
}
|
|
const size_t mask = movemask(vmask);
|
|
dist = tNear;
|
|
return mask;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
// Robust AABBNodeMB4D intersection
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
template<int N>
|
|
__forceinline size_t intersectNodeMB4DRobust(const typename BVHN<N>::NodeRef ref, const TravRay<N,true>& ray, const float time, vfloat<N>& dist)
|
|
{
|
|
const typename BVHN<N>::AABBNodeMB* node = ref.getAABBNodeMB();
|
|
|
|
const vfloat<N>* pNearX = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearX);
|
|
const vfloat<N>* pNearY = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearY);
|
|
const vfloat<N>* pNearZ = (const vfloat<N>*)((const char*)&node->lower_x+ray.nearZ);
|
|
const vfloat<N> tNearX = (madd(time,pNearX[6],vfloat<N>(pNearX[0])) - ray.org.x) * ray.rdir_near.x;
|
|
const vfloat<N> tNearY = (madd(time,pNearY[6],vfloat<N>(pNearY[0])) - ray.org.y) * ray.rdir_near.y;
|
|
const vfloat<N> tNearZ = (madd(time,pNearZ[6],vfloat<N>(pNearZ[0])) - ray.org.z) * ray.rdir_near.z;
|
|
const vfloat<N> tNear = max(ray.tnear,tNearX,tNearY,tNearZ);
|
|
const vfloat<N>* pFarX = (const vfloat<N>*)((const char*)&node->lower_x+ray.farX);
|
|
const vfloat<N>* pFarY = (const vfloat<N>*)((const char*)&node->lower_x+ray.farY);
|
|
const vfloat<N>* pFarZ = (const vfloat<N>*)((const char*)&node->lower_x+ray.farZ);
|
|
const vfloat<N> tFarX = (madd(time,pFarX[6],vfloat<N>(pFarX[0])) - ray.org.x) * ray.rdir_far.x;
|
|
const vfloat<N> tFarY = (madd(time,pFarY[6],vfloat<N>(pFarY[0])) - ray.org.y) * ray.rdir_far.y;
|
|
const vfloat<N> tFarZ = (madd(time,pFarZ[6],vfloat<N>(pFarZ[0])) - ray.org.z) * ray.rdir_far.z;
|
|
const vfloat<N> tFar = min(ray.tfar,tFarX,tFarY,tFarZ);
|
|
vbool<N> vmask = tNear <= tFar;
|
|
if (unlikely(ref.isAABBNodeMB4D())) {
|
|
const typename BVHN<N>::AABBNodeMB4D* node1 = (const typename BVHN<N>::AABBNodeMB4D*) node;
|
|
vmask &= (node1->lower_t <= time) & (time < node1->upper_t);
|
|
}
|
|
const size_t mask = movemask(vmask);
|
|
dist = tNear;
|
|
return mask;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
// Fast QuantizedBaseNode intersection
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
template<int N, bool robust>
|
|
__forceinline size_t intersectNode(const typename BVHN<N>::QuantizedBaseNode* node, const TravRay<N,robust>& ray, vfloat<N>& dist);
|
|
|
|
template<>
|
|
__forceinline size_t intersectNode<4>(const typename BVH4::QuantizedBaseNode* node, const TravRay<4,false>& ray, vfloat4& dist)
|
|
{
|
|
const size_t mvalid = movemask(node->validMask());
|
|
const vfloat4 start_x(node->start.x);
|
|
const vfloat4 scale_x(node->scale.x);
|
|
const vfloat4 lower_x = madd(node->dequantize<4>(ray.nearX >> 2),scale_x,start_x);
|
|
const vfloat4 upper_x = madd(node->dequantize<4>(ray.farX >> 2),scale_x,start_x);
|
|
const vfloat4 start_y(node->start.y);
|
|
const vfloat4 scale_y(node->scale.y);
|
|
const vfloat4 lower_y = madd(node->dequantize<4>(ray.nearY >> 2),scale_y,start_y);
|
|
const vfloat4 upper_y = madd(node->dequantize<4>(ray.farY >> 2),scale_y,start_y);
|
|
const vfloat4 start_z(node->start.z);
|
|
const vfloat4 scale_z(node->scale.z);
|
|
const vfloat4 lower_z = madd(node->dequantize<4>(ray.nearZ >> 2),scale_z,start_z);
|
|
const vfloat4 upper_z = madd(node->dequantize<4>(ray.farZ >> 2),scale_z,start_z);
|
|
|
|
#if defined(__FMA_X4__)
|
|
#if defined(__aarch64__)
|
|
const vfloat4 tNearX = madd(lower_x, ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat4 tNearY = madd(lower_y, ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat4 tNearZ = madd(lower_z, ray.rdir.z, ray.neg_org_rdir.z);
|
|
const vfloat4 tFarX = madd(upper_x, ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat4 tFarY = madd(upper_y, ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat4 tFarZ = madd(upper_z, ray.rdir.z, ray.neg_org_rdir.z);
|
|
#else
|
|
const vfloat4 tNearX = msub(lower_x, ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat4 tNearY = msub(lower_y, ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat4 tNearZ = msub(lower_z, ray.rdir.z, ray.org_rdir.z);
|
|
const vfloat4 tFarX = msub(upper_x, ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat4 tFarY = msub(upper_y, ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat4 tFarZ = msub(upper_z, ray.rdir.z, ray.org_rdir.z);
|
|
#endif
|
|
#else
|
|
const vfloat4 tNearX = (lower_x - ray.org.x) * ray.rdir.x;
|
|
const vfloat4 tNearY = (lower_y - ray.org.y) * ray.rdir.y;
|
|
const vfloat4 tNearZ = (lower_z - ray.org.z) * ray.rdir.z;
|
|
const vfloat4 tFarX = (upper_x - ray.org.x) * ray.rdir.x;
|
|
const vfloat4 tFarY = (upper_y - ray.org.y) * ray.rdir.y;
|
|
const vfloat4 tFarZ = (upper_z - ray.org.z) * ray.rdir.z;
|
|
#endif
|
|
|
|
#if defined(__aarch64__) || defined(__SSE4_1__) && !defined(__AVX512F__) // up to HSW
|
|
const vfloat4 tNear = maxi(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat4 tFar = mini(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool4 vmask = asInt(tNear) > asInt(tFar);
|
|
const size_t mask = movemask(vmask) ^ ((1<<4)-1);
|
|
#elif defined(__AVX512F__) // SKX
|
|
const vfloat4 tNear = maxi(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat4 tFar = mini(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool4 vmask = asInt(tNear) <= asInt(tFar);
|
|
const size_t mask = movemask(vmask);
|
|
#else
|
|
const vfloat4 tNear = max(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat4 tFar = min(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool4 vmask = tNear <= tFar;
|
|
const size_t mask = movemask(vmask);
|
|
#endif
|
|
dist = tNear;
|
|
return mask & mvalid;
|
|
}
|
|
|
|
template<>
|
|
__forceinline size_t intersectNode<4>(const typename BVH4::QuantizedBaseNode* node, const TravRay<4,true>& ray, vfloat4& dist)
|
|
{
|
|
const size_t mvalid = movemask(node->validMask());
|
|
const vfloat4 start_x(node->start.x);
|
|
const vfloat4 scale_x(node->scale.x);
|
|
const vfloat4 lower_x = madd(node->dequantize<4>(ray.nearX >> 2),scale_x,start_x);
|
|
const vfloat4 upper_x = madd(node->dequantize<4>(ray.farX >> 2),scale_x,start_x);
|
|
const vfloat4 start_y(node->start.y);
|
|
const vfloat4 scale_y(node->scale.y);
|
|
const vfloat4 lower_y = madd(node->dequantize<4>(ray.nearY >> 2),scale_y,start_y);
|
|
const vfloat4 upper_y = madd(node->dequantize<4>(ray.farY >> 2),scale_y,start_y);
|
|
const vfloat4 start_z(node->start.z);
|
|
const vfloat4 scale_z(node->scale.z);
|
|
const vfloat4 lower_z = madd(node->dequantize<4>(ray.nearZ >> 2),scale_z,start_z);
|
|
const vfloat4 upper_z = madd(node->dequantize<4>(ray.farZ >> 2),scale_z,start_z);
|
|
|
|
const vfloat4 tNearX = (lower_x - ray.org.x) * ray.rdir_near.x;
|
|
const vfloat4 tNearY = (lower_y - ray.org.y) * ray.rdir_near.y;
|
|
const vfloat4 tNearZ = (lower_z - ray.org.z) * ray.rdir_near.z;
|
|
const vfloat4 tFarX = (upper_x - ray.org.x) * ray.rdir_far.x;
|
|
const vfloat4 tFarY = (upper_y - ray.org.y) * ray.rdir_far.y;
|
|
const vfloat4 tFarZ = (upper_z - ray.org.z) * ray.rdir_far.z;
|
|
|
|
const vfloat4 tNear = max(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat4 tFar = min(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool4 vmask = tNear <= tFar;
|
|
const size_t mask = movemask(vmask);
|
|
dist = tNear;
|
|
return mask & mvalid;
|
|
}
|
|
|
|
|
|
#if defined(__AVX__)
|
|
|
|
template<>
|
|
__forceinline size_t intersectNode<8>(const typename BVH8::QuantizedBaseNode* node, const TravRay<8,false>& ray, vfloat8& dist)
|
|
{
|
|
const size_t mvalid = movemask(node->validMask());
|
|
const vfloat8 start_x(node->start.x);
|
|
const vfloat8 scale_x(node->scale.x);
|
|
const vfloat8 lower_x = madd(node->dequantize<8>(ray.nearX >> 2),scale_x,start_x);
|
|
const vfloat8 upper_x = madd(node->dequantize<8>(ray.farX >> 2),scale_x,start_x);
|
|
const vfloat8 start_y(node->start.y);
|
|
const vfloat8 scale_y(node->scale.y);
|
|
const vfloat8 lower_y = madd(node->dequantize<8>(ray.nearY >> 2),scale_y,start_y);
|
|
const vfloat8 upper_y = madd(node->dequantize<8>(ray.farY >> 2),scale_y,start_y);
|
|
const vfloat8 start_z(node->start.z);
|
|
const vfloat8 scale_z(node->scale.z);
|
|
const vfloat8 lower_z = madd(node->dequantize<8>(ray.nearZ >> 2),scale_z,start_z);
|
|
const vfloat8 upper_z = madd(node->dequantize<8>(ray.farZ >> 2),scale_z,start_z);
|
|
|
|
#if defined(__AVX2__)
|
|
#if defined(__aarch64__)
|
|
const vfloat8 tNearX = madd(lower_x, ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat8 tNearY = madd(lower_y, ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat8 tNearZ = madd(lower_z, ray.rdir.z, ray.neg_org_rdir.z);
|
|
const vfloat8 tFarX = madd(upper_x, ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat8 tFarY = madd(upper_y, ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat8 tFarZ = madd(upper_z, ray.rdir.z, ray.neg_org_rdir.z);
|
|
#else
|
|
const vfloat8 tNearX = msub(lower_x, ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat8 tNearY = msub(lower_y, ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat8 tNearZ = msub(lower_z, ray.rdir.z, ray.org_rdir.z);
|
|
const vfloat8 tFarX = msub(upper_x, ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat8 tFarY = msub(upper_y, ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat8 tFarZ = msub(upper_z, ray.rdir.z, ray.org_rdir.z);
|
|
#endif
|
|
#else
|
|
const vfloat8 tNearX = (lower_x - ray.org.x) * ray.rdir.x;
|
|
const vfloat8 tNearY = (lower_y - ray.org.y) * ray.rdir.y;
|
|
const vfloat8 tNearZ = (lower_z - ray.org.z) * ray.rdir.z;
|
|
const vfloat8 tFarX = (upper_x - ray.org.x) * ray.rdir.x;
|
|
const vfloat8 tFarY = (upper_y - ray.org.y) * ray.rdir.y;
|
|
const vfloat8 tFarZ = (upper_z - ray.org.z) * ray.rdir.z;
|
|
#endif
|
|
|
|
#if defined(__AVX2__) && !defined(__AVX512F__) // HSW
|
|
const vfloat8 tNear = maxi(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat8 tFar = mini(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool8 vmask = asInt(tNear) > asInt(tFar);
|
|
const size_t mask = movemask(vmask) ^ ((1<<8)-1);
|
|
#elif defined(__AVX512F__) // SKX
|
|
const vfloat8 tNear = maxi(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat8 tFar = mini(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool8 vmask = asInt(tNear) <= asInt(tFar);
|
|
const size_t mask = movemask(vmask);
|
|
#else
|
|
const vfloat8 tNear = max(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat8 tFar = min(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool8 vmask = tNear <= tFar;
|
|
const size_t mask = movemask(vmask);
|
|
#endif
|
|
dist = tNear;
|
|
return mask & mvalid;
|
|
}
|
|
|
|
template<>
|
|
__forceinline size_t intersectNode<8>(const typename BVH8::QuantizedBaseNode* node, const TravRay<8,true>& ray, vfloat8& dist)
|
|
{
|
|
const size_t mvalid = movemask(node->validMask());
|
|
const vfloat8 start_x(node->start.x);
|
|
const vfloat8 scale_x(node->scale.x);
|
|
const vfloat8 lower_x = madd(node->dequantize<8>(ray.nearX >> 2),scale_x,start_x);
|
|
const vfloat8 upper_x = madd(node->dequantize<8>(ray.farX >> 2),scale_x,start_x);
|
|
const vfloat8 start_y(node->start.y);
|
|
const vfloat8 scale_y(node->scale.y);
|
|
const vfloat8 lower_y = madd(node->dequantize<8>(ray.nearY >> 2),scale_y,start_y);
|
|
const vfloat8 upper_y = madd(node->dequantize<8>(ray.farY >> 2),scale_y,start_y);
|
|
const vfloat8 start_z(node->start.z);
|
|
const vfloat8 scale_z(node->scale.z);
|
|
const vfloat8 lower_z = madd(node->dequantize<8>(ray.nearZ >> 2),scale_z,start_z);
|
|
const vfloat8 upper_z = madd(node->dequantize<8>(ray.farZ >> 2),scale_z,start_z);
|
|
|
|
const vfloat8 tNearX = (lower_x - ray.org.x) * ray.rdir_near.x;
|
|
const vfloat8 tNearY = (lower_y - ray.org.y) * ray.rdir_near.y;
|
|
const vfloat8 tNearZ = (lower_z - ray.org.z) * ray.rdir_near.z;
|
|
const vfloat8 tFarX = (upper_x - ray.org.x) * ray.rdir_far.x;
|
|
const vfloat8 tFarY = (upper_y - ray.org.y) * ray.rdir_far.y;
|
|
const vfloat8 tFarZ = (upper_z - ray.org.z) * ray.rdir_far.z;
|
|
|
|
const vfloat8 tNear = max(tNearX,tNearY,tNearZ,ray.tnear);
|
|
const vfloat8 tFar = min(tFarX ,tFarY ,tFarZ ,ray.tfar);
|
|
const vbool8 vmask = tNear <= tFar;
|
|
const size_t mask = movemask(vmask);
|
|
|
|
dist = tNear;
|
|
return mask & mvalid;
|
|
}
|
|
|
|
|
|
#endif
|
|
|
|
template<int N>
|
|
__forceinline size_t intersectNode(const typename BVHN<N>::QuantizedBaseNodeMB* node, const TravRay<N,false>& ray, const float time, vfloat<N>& dist)
|
|
{
|
|
const vboolf<N> mvalid = node->validMask();
|
|
const vfloat<N> lower_x = node->dequantizeLowerX(time);
|
|
const vfloat<N> upper_x = node->dequantizeUpperX(time);
|
|
const vfloat<N> lower_y = node->dequantizeLowerY(time);
|
|
const vfloat<N> upper_y = node->dequantizeUpperY(time);
|
|
const vfloat<N> lower_z = node->dequantizeLowerZ(time);
|
|
const vfloat<N> upper_z = node->dequantizeUpperZ(time);
|
|
#if defined(__FMA_X4__)
|
|
#if defined(__aarch64__)
|
|
const vfloat<N> tNearX = madd(lower_x, ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat<N> tNearY = madd(lower_y, ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat<N> tNearZ = madd(lower_z, ray.rdir.z, ray.neg_org_rdir.z);
|
|
const vfloat<N> tFarX = madd(upper_x, ray.rdir.x, ray.neg_org_rdir.x);
|
|
const vfloat<N> tFarY = madd(upper_y, ray.rdir.y, ray.neg_org_rdir.y);
|
|
const vfloat<N> tFarZ = madd(upper_z, ray.rdir.z, ray.neg_org_rdir.z);
|
|
#else
|
|
const vfloat<N> tNearX = msub(lower_x, ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat<N> tNearY = msub(lower_y, ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat<N> tNearZ = msub(lower_z, ray.rdir.z, ray.org_rdir.z);
|
|
const vfloat<N> tFarX = msub(upper_x, ray.rdir.x, ray.org_rdir.x);
|
|
const vfloat<N> tFarY = msub(upper_y, ray.rdir.y, ray.org_rdir.y);
|
|
const vfloat<N> tFarZ = msub(upper_z, ray.rdir.z, ray.org_rdir.z);
|
|
#endif
|
|
#else
|
|
const vfloat<N> tNearX = (lower_x - ray.org.x) * ray.rdir.x;
|
|
const vfloat<N> tNearY = (lower_y - ray.org.y) * ray.rdir.y;
|
|
const vfloat<N> tNearZ = (lower_z - ray.org.z) * ray.rdir.z;
|
|
const vfloat<N> tFarX = (upper_x - ray.org.x) * ray.rdir.x;
|
|
const vfloat<N> tFarY = (upper_y - ray.org.y) * ray.rdir.y;
|
|
const vfloat<N> tFarZ = (upper_z - ray.org.z) * ray.rdir.z;
|
|
#endif
|
|
|
|
const vfloat<N> tminX = mini(tNearX,tFarX);
|
|
const vfloat<N> tmaxX = maxi(tNearX,tFarX);
|
|
const vfloat<N> tminY = mini(tNearY,tFarY);
|
|
const vfloat<N> tmaxY = maxi(tNearY,tFarY);
|
|
const vfloat<N> tminZ = mini(tNearZ,tFarZ);
|
|
const vfloat<N> tmaxZ = maxi(tNearZ,tFarZ);
|
|
const vfloat<N> tNear = maxi(tminX,tminY,tminZ,ray.tnear);
|
|
const vfloat<N> tFar = mini(tmaxX,tmaxY,tmaxZ,ray.tfar);
|
|
#if defined(__AVX512F__) // SKX
|
|
const vbool<N> vmask = le(mvalid,asInt(tNear),asInt(tFar));
|
|
#else
|
|
const vbool<N> vmask = (asInt(tNear) <= asInt(tFar)) & mvalid;
|
|
#endif
|
|
const size_t mask = movemask(vmask);
|
|
dist = tNear;
|
|
return mask;
|
|
}
|
|
|
|
template<int N>
|
|
__forceinline size_t intersectNode(const typename BVHN<N>::QuantizedBaseNodeMB* node, const TravRay<N,true>& ray, const float time, vfloat<N>& dist)
|
|
{
|
|
const vboolf<N> mvalid = node->validMask();
|
|
const vfloat<N> lower_x = node->dequantizeLowerX(time);
|
|
const vfloat<N> upper_x = node->dequantizeUpperX(time);
|
|
const vfloat<N> lower_y = node->dequantizeLowerY(time);
|
|
const vfloat<N> upper_y = node->dequantizeUpperY(time);
|
|
const vfloat<N> lower_z = node->dequantizeLowerZ(time);
|
|
const vfloat<N> upper_z = node->dequantizeUpperZ(time);
|
|
const vfloat<N> tNearX = (lower_x - ray.org.x) * ray.rdir_near.x;
|
|
const vfloat<N> tNearY = (lower_y - ray.org.y) * ray.rdir_near.y;
|
|
const vfloat<N> tNearZ = (lower_z - ray.org.z) * ray.rdir_near.z;
|
|
const vfloat<N> tFarX = (upper_x - ray.org.x) * ray.rdir_far.x;
|
|
const vfloat<N> tFarY = (upper_y - ray.org.y) * ray.rdir_far.y;
|
|
const vfloat<N> tFarZ = (upper_z - ray.org.z) * ray.rdir_far.z;
|
|
|
|
const vfloat<N> tminX = mini(tNearX,tFarX);
|
|
const vfloat<N> tmaxX = maxi(tNearX,tFarX);
|
|
const vfloat<N> tminY = mini(tNearY,tFarY);
|
|
const vfloat<N> tmaxY = maxi(tNearY,tFarY);
|
|
const vfloat<N> tminZ = mini(tNearZ,tFarZ);
|
|
const vfloat<N> tmaxZ = maxi(tNearZ,tFarZ);
|
|
const vfloat<N> tNear = maxi(tminX,tminY,tminZ,ray.tnear);
|
|
const vfloat<N> tFar = mini(tmaxX,tmaxY,tmaxZ,ray.tfar);
|
|
#if defined(__AVX512F__) // SKX
|
|
const vbool<N> vmask = le(mvalid,asInt(tNear),asInt(tFar));
|
|
#else
|
|
const vbool<N> vmask = (asInt(tNear) <= asInt(tFar)) & mvalid;
|
|
#endif
|
|
const size_t mask = movemask(vmask);
|
|
dist = tNear;
|
|
return mask;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
// Fast OBBNode intersection
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
template<int N, bool robust>
|
|
__forceinline size_t intersectNode(const typename BVHN<N>::OBBNode* node, const TravRay<N,robust>& ray, vfloat<N>& dist)
|
|
{
|
|
const Vec3vf<N> dir = xfmVector(node->naabb,ray.dir);
|
|
//const Vec3vf<N> nrdir = Vec3vf<N>(vfloat<N>(-1.0f))/dir;
|
|
const Vec3vf<N> nrdir = Vec3vf<N>(vfloat<N>(-1.0f))*rcp_safe(dir);
|
|
const Vec3vf<N> org = xfmPoint(node->naabb,ray.org);
|
|
const Vec3vf<N> tLowerXYZ = org * nrdir; // (Vec3fa(zero) - org) * rdir;
|
|
const Vec3vf<N> tUpperXYZ = tLowerXYZ - nrdir; // (Vec3fa(one ) - org) * rdir;
|
|
|
|
const vfloat<N> tNearX = mini(tLowerXYZ.x,tUpperXYZ.x);
|
|
const vfloat<N> tNearY = mini(tLowerXYZ.y,tUpperXYZ.y);
|
|
const vfloat<N> tNearZ = mini(tLowerXYZ.z,tUpperXYZ.z);
|
|
const vfloat<N> tFarX = maxi(tLowerXYZ.x,tUpperXYZ.x);
|
|
const vfloat<N> tFarY = maxi(tLowerXYZ.y,tUpperXYZ.y);
|
|
const vfloat<N> tFarZ = maxi(tLowerXYZ.z,tUpperXYZ.z);
|
|
vfloat<N> tNear = max(ray.tnear, tNearX,tNearY,tNearZ);
|
|
vfloat<N> tFar = min(ray.tfar, tFarX ,tFarY ,tFarZ );
|
|
if (robust) {
|
|
tNear = tNear*vfloat<N>(1.0f-3.0f*float(ulp));
|
|
tFar = tFar *vfloat<N>(1.0f+3.0f*float(ulp));
|
|
}
|
|
const vbool<N> vmask = tNear <= tFar;
|
|
dist = tNear;
|
|
return movemask(vmask);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
// Fast OBBNodeMB intersection
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
template<int N, bool robust>
|
|
__forceinline size_t intersectNode(const typename BVHN<N>::OBBNodeMB* node, const TravRay<N,robust>& ray, const float time, vfloat<N>& dist)
|
|
{
|
|
const AffineSpace3vf<N> xfm = node->space0;
|
|
const Vec3vf<N> b0_lower = zero;
|
|
const Vec3vf<N> b0_upper = one;
|
|
const Vec3vf<N> lower = lerp(b0_lower,node->b1.lower,vfloat<N>(time));
|
|
const Vec3vf<N> upper = lerp(b0_upper,node->b1.upper,vfloat<N>(time));
|
|
|
|
const BBox3vf<N> bounds(lower,upper);
|
|
const Vec3vf<N> dir = xfmVector(xfm,ray.dir);
|
|
const Vec3vf<N> rdir = rcp_safe(dir);
|
|
const Vec3vf<N> org = xfmPoint(xfm,ray.org);
|
|
|
|
const Vec3vf<N> tLowerXYZ = (bounds.lower - org) * rdir;
|
|
const Vec3vf<N> tUpperXYZ = (bounds.upper - org) * rdir;
|
|
|
|
const vfloat<N> tNearX = mini(tLowerXYZ.x,tUpperXYZ.x);
|
|
const vfloat<N> tNearY = mini(tLowerXYZ.y,tUpperXYZ.y);
|
|
const vfloat<N> tNearZ = mini(tLowerXYZ.z,tUpperXYZ.z);
|
|
const vfloat<N> tFarX = maxi(tLowerXYZ.x,tUpperXYZ.x);
|
|
const vfloat<N> tFarY = maxi(tLowerXYZ.y,tUpperXYZ.y);
|
|
const vfloat<N> tFarZ = maxi(tLowerXYZ.z,tUpperXYZ.z);
|
|
vfloat<N> tNear = max(ray.tnear, tNearX,tNearY,tNearZ);
|
|
vfloat<N> tFar = min(ray.tfar, tFarX ,tFarY ,tFarZ );
|
|
if (robust) {
|
|
tNear = tNear*vfloat<N>(1.0f-3.0f*float(ulp));
|
|
tFar = tFar *vfloat<N>(1.0f+3.0f*float(ulp));
|
|
}
|
|
const vbool<N> vmask = tNear <= tFar;
|
|
dist = tNear;
|
|
return movemask(vmask);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
// Node intersectors used in point query raversal
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
/*! Computes traversal information for N nodes with 1 point query */
|
|
template<int N, int types>
|
|
struct BVHNNodePointQuerySphere1;
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQuerySphere1<N, BVH_AN1>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = pointQueryNodeSphere(node.getAABBNode(), query, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQuerySphere1<N, BVH_AN2>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = pointQueryNodeSphere(node.getAABBNodeMB(), query, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQuerySphere1<N, BVH_AN2_AN4D>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = pointQueryNodeSphereMB4D<N>(node, query, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQuerySphere1<N, BVH_AN1_UN1>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (likely(node.isAABBNode())) mask = pointQueryNodeSphere(node.getAABBNode(), query, dist);
|
|
else if (unlikely(node.isOBBNode())) mask = pointQueryNodeSphere(node.ungetAABBNode(), query, dist);
|
|
else return false;
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQuerySphere1<N, BVH_AN2_UN2>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (likely(node.isAABBNodeMB())) mask = pointQueryNodeSphere(node.getAABBNodeMB(), query, time, dist);
|
|
else if (unlikely(node.isOBBNodeMB())) mask = pointQueryNodeSphere(node.ungetAABBNodeMB(), query, time, dist);
|
|
else return false;
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQuerySphere1<N, BVH_AN2_AN4D_UN2>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
if (unlikely(node.isOBBNodeMB())) mask = pointQueryNodeSphere(node.ungetAABBNodeMB(), query, time, dist);
|
|
else mask = pointQueryNodeSphereMB4D(node, query, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQuerySphere1<N, BVH_QN1>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = pointQueryNodeSphere((const typename BVHN<N>::QuantizedNode*)node.quantizedNode(), query, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNQuantizedBaseNodePointQuerySphere1
|
|
{
|
|
static __forceinline size_t pointQuery(const typename BVHN<N>::QuantizedBaseNode* node, const TravPointQuery<N>& query, vfloat<N>& dist)
|
|
{
|
|
return pointQueryNodeSphere(node,query,dist);
|
|
}
|
|
|
|
static __forceinline size_t pointQuery(const typename BVHN<N>::QuantizedBaseNodeMB* node, const TravPointQuery<N>& query, const float time, vfloat<N>& dist)
|
|
{
|
|
return pointQueryNodeSphere(node,query,time,dist);
|
|
}
|
|
};
|
|
|
|
/*! Computes traversal information for N nodes with 1 point query */
|
|
template<int N, int types>
|
|
struct BVHNNodePointQueryAABB1;
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQueryAABB1<N, BVH_AN1>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = pointQueryNodeAABB(node.getAABBNode(), query, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQueryAABB1<N, BVH_AN2>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = pointQueryNodeAABB(node.getAABBNodeMB(), query, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQueryAABB1<N, BVH_AN2_AN4D>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = pointQueryNodeAABBMB4D<N>(node, query, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQueryAABB1<N, BVH_AN1_UN1>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (likely(node.isAABBNode())) mask = pointQueryNodeAABB(node.getAABBNode(), query, dist);
|
|
else if (unlikely(node.isOBBNode())) mask = pointQueryNodeAABB(node.ungetAABBNode(), query, dist);
|
|
else return false;
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQueryAABB1<N, BVH_AN2_UN2>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (likely(node.isAABBNodeMB())) mask = pointQueryNodeAABB(node.getAABBNodeMB(), query, time, dist);
|
|
else if (unlikely(node.isOBBNodeMB())) mask = pointQueryNodeAABB(node.ungetAABBNodeMB(), query, time, dist);
|
|
else return false;
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQueryAABB1<N, BVH_AN2_AN4D_UN2>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
if (unlikely(node.isOBBNodeMB())) mask = pointQueryNodeAABB(node.ungetAABBNodeMB(), query, time, dist);
|
|
else mask = pointQueryNodeAABBMB4D(node, query, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodePointQueryAABB1<N, BVH_QN1>
|
|
{
|
|
static __forceinline bool pointQuery(const typename BVHN<N>::NodeRef& node, const TravPointQuery<N>& query, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = pointQueryNodeAABB((const typename BVHN<N>::QuantizedNode*)node.quantizedNode(), query, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNQuantizedBaseNodePointQueryAABB1
|
|
{
|
|
static __forceinline size_t pointQuery(const typename BVHN<N>::QuantizedBaseNode* node, const TravPointQuery<N>& query, vfloat<N>& dist)
|
|
{
|
|
return pointQueryNodeAABB(node,query,dist);
|
|
}
|
|
|
|
static __forceinline size_t pointQuery(const typename BVHN<N>::QuantizedBaseNodeMB* node, const TravPointQuery<N>& query, const float time, vfloat<N>& dist)
|
|
{
|
|
return pointQueryNodeAABB(node,query,time,dist);
|
|
}
|
|
};
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
// Node intersectors used in ray traversal
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
/*! Intersects N nodes with 1 ray */
|
|
template<int N, int types, bool robust>
|
|
struct BVHNNodeIntersector1;
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN1, false>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,false>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = intersectNode(node.getAABBNode(), ray, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN1, true>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,true>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = intersectNodeRobust(node.getAABBNode(), ray, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN2, false>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,false>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = intersectNode(node.getAABBNodeMB(), ray, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN2, true>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,true>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = intersectNodeRobust(node.getAABBNodeMB(), ray, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN2_AN4D, false>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,false>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = intersectNodeMB4D<N>(node, ray, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN2_AN4D, true>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,true>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = intersectNodeMB4DRobust<N>(node, ray, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN1_UN1, false>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,false>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (likely(node.isAABBNode())) mask = intersectNode(node.getAABBNode(), ray, dist);
|
|
else if (unlikely(node.isOBBNode())) mask = intersectNode(node.ungetAABBNode(), ray, dist);
|
|
else return false;
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN1_UN1, true>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,true>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (likely(node.isAABBNode())) mask = intersectNodeRobust(node.getAABBNode(), ray, dist);
|
|
else if (unlikely(node.isOBBNode())) mask = intersectNode(node.ungetAABBNode(), ray, dist);
|
|
else return false;
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN2_UN2, false>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,false>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (likely(node.isAABBNodeMB())) mask = intersectNode(node.getAABBNodeMB(), ray, time, dist);
|
|
else if (unlikely(node.isOBBNodeMB())) mask = intersectNode(node.ungetAABBNodeMB(), ray, time, dist);
|
|
else return false;
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN2_UN2, true>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,true>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (likely(node.isAABBNodeMB())) mask = intersectNodeRobust(node.getAABBNodeMB(), ray, time, dist);
|
|
else if (unlikely(node.isOBBNodeMB())) mask = intersectNode(node.ungetAABBNodeMB(), ray, time, dist);
|
|
else return false;
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN2_AN4D_UN2, false>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,false>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
if (unlikely(node.isOBBNodeMB())) mask = intersectNode(node.ungetAABBNodeMB(), ray, time, dist);
|
|
else mask = intersectNodeMB4D(node, ray, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_AN2_AN4D_UN2, true>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,true>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
if (unlikely(node.isOBBNodeMB())) mask = intersectNode(node.ungetAABBNodeMB(), ray, time, dist);
|
|
else mask = intersectNodeMB4DRobust(node, ray, time, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_QN1, false>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,false>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = intersectNode((const typename BVHN<N>::QuantizedNode*)node.quantizedNode(), ray, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNNodeIntersector1<N, BVH_QN1, true>
|
|
{
|
|
static __forceinline bool intersect(const typename BVHN<N>::NodeRef& node, const TravRay<N,true>& ray, float time, vfloat<N>& dist, size_t& mask)
|
|
{
|
|
if (unlikely(node.isLeaf())) return false;
|
|
mask = intersectNodeRobust((const typename BVHN<N>::QuantizedNode*)node.quantizedNode(), ray, dist);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
/*! Intersects N nodes with K rays */
|
|
template<int N, bool robust>
|
|
struct BVHNQuantizedBaseNodeIntersector1;
|
|
|
|
template<int N>
|
|
struct BVHNQuantizedBaseNodeIntersector1<N, false>
|
|
{
|
|
static __forceinline size_t intersect(const typename BVHN<N>::QuantizedBaseNode* node, const TravRay<N,false>& ray, vfloat<N>& dist)
|
|
{
|
|
return intersectNode(node,ray,dist);
|
|
}
|
|
|
|
static __forceinline size_t intersect(const typename BVHN<N>::QuantizedBaseNodeMB* node, const TravRay<N,false>& ray, const float time, vfloat<N>& dist)
|
|
{
|
|
return intersectNode(node,ray,time,dist);
|
|
}
|
|
|
|
};
|
|
|
|
template<int N>
|
|
struct BVHNQuantizedBaseNodeIntersector1<N, true>
|
|
{
|
|
static __forceinline size_t intersect(const typename BVHN<N>::QuantizedBaseNode* node, const TravRay<N,true>& ray, vfloat<N>& dist)
|
|
{
|
|
return intersectNode(node,ray,dist);
|
|
}
|
|
|
|
static __forceinline size_t intersect(const typename BVHN<N>::QuantizedBaseNodeMB* node, const TravRay<N,true>& ray, const float time, vfloat<N>& dist)
|
|
{
|
|
return intersectNode(node,ray,time,dist);
|
|
}
|
|
|
|
};
|
|
|
|
|
|
}
|
|
}
|