556 lines
23 KiB
C++
556 lines
23 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 "default.h"
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#include "ray.h"
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#include "point_query.h"
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#include "context.h"
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namespace embree
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{
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class Scene;
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/*! Base class for the acceleration structure data. */
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class AccelData : public RefCount
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{
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ALIGNED_CLASS_(16);
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public:
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enum Type { TY_UNKNOWN = 0, TY_ACCELN = 1, TY_ACCEL_INSTANCE = 2, TY_BVH4 = 3, TY_BVH8 = 4 };
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public:
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AccelData (const Type type)
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: bounds(empty), type(type) {}
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/*! notifies the acceleration structure about the deletion of some geometry */
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virtual void deleteGeometry(size_t geomID) {};
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/*! clears the acceleration structure data */
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virtual void clear() = 0;
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/*! returns normal bounds */
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__forceinline BBox3fa getBounds() const {
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return bounds.bounds();
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}
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/*! returns bounds for some time */
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__forceinline BBox3fa getBounds(float t) const {
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return bounds.interpolate(t);
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}
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/*! returns linear bounds */
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__forceinline LBBox3fa getLinearBounds() const {
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return bounds;
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}
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/*! checks if acceleration structure is empty */
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__forceinline bool isEmpty() const {
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return bounds.bounds0.lower.x == float(pos_inf);
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}
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public:
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LBBox3fa bounds; // linear bounds
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Type type;
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};
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/*! Base class for all intersectable and buildable acceleration structures. */
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class Accel : public AccelData
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{
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ALIGNED_CLASS_(16);
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public:
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struct Intersectors;
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/*! Type of collide function */
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typedef void (*CollideFunc)(void* bvh0, void* bvh1, RTCCollideFunc callback, void* userPtr);
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/*! Type of point query function */
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typedef bool(*PointQueryFunc)(Intersectors* This, /*!< this pointer to accel */
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PointQuery* query, /*!< point query for lookup */
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PointQueryContext* context); /*!< point query context */
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/*! Type of intersect function pointer for single rays. */
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typedef void (*IntersectFunc)(Intersectors* This, /*!< this pointer to accel */
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RTCRayHit& ray, /*!< ray to intersect */
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IntersectContext* context);
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/*! Type of intersect function pointer for ray packets of size 4. */
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typedef void (*IntersectFunc4)(const void* valid, /*!< pointer to valid mask */
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Intersectors* This, /*!< this pointer to accel */
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RTCRayHit4& ray, /*!< ray packet to intersect */
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IntersectContext* context);
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/*! Type of intersect function pointer for ray packets of size 8. */
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typedef void (*IntersectFunc8)(const void* valid, /*!< pointer to valid mask */
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Intersectors* This, /*!< this pointer to accel */
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RTCRayHit8& ray, /*!< ray packet to intersect */
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IntersectContext* context);
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/*! Type of intersect function pointer for ray packets of size 16. */
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typedef void (*IntersectFunc16)(const void* valid, /*!< pointer to valid mask */
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Intersectors* This, /*!< this pointer to accel */
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RTCRayHit16& ray, /*!< ray packet to intersect */
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IntersectContext* context);
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/*! Type of intersect function pointer for ray packets of size N. */
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typedef void (*IntersectFuncN)(Intersectors* This, /*!< this pointer to accel */
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RTCRayHitN** ray, /*!< ray stream to intersect */
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const size_t N, /*!< number of rays in stream */
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IntersectContext* context /*!< layout flags */);
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/*! Type of occlusion function pointer for single rays. */
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typedef void (*OccludedFunc) (Intersectors* This, /*!< this pointer to accel */
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RTCRay& ray, /*!< ray to test occlusion */
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IntersectContext* context);
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/*! Type of occlusion function pointer for ray packets of size 4. */
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typedef void (*OccludedFunc4) (const void* valid, /*!< pointer to valid mask */
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Intersectors* This, /*!< this pointer to accel */
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RTCRay4& ray, /*!< ray packet to test occlusion. */
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IntersectContext* context);
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/*! Type of occlusion function pointer for ray packets of size 8. */
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typedef void (*OccludedFunc8) (const void* valid, /*!< pointer to valid mask */
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Intersectors* This, /*!< this pointer to accel */
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RTCRay8& ray, /*!< ray packet to test occlusion. */
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IntersectContext* context);
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/*! Type of occlusion function pointer for ray packets of size 16. */
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typedef void (*OccludedFunc16) (const void* valid, /*!< pointer to valid mask */
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Intersectors* This, /*!< this pointer to accel */
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RTCRay16& ray, /*!< ray packet to test occlusion. */
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IntersectContext* context);
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/*! Type of intersect function pointer for ray packets of size N. */
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typedef void (*OccludedFuncN)(Intersectors* This, /*!< this pointer to accel */
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RTCRayN** ray, /*!< ray stream to test occlusion */
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const size_t N, /*!< number of rays in stream */
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IntersectContext* context /*!< layout flags */);
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typedef void (*ErrorFunc) ();
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struct Collider
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{
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Collider (ErrorFunc error = nullptr)
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: collide((CollideFunc)error), name(nullptr) {}
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Collider (CollideFunc collide, const char* name)
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: collide(collide), name(name) {}
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operator bool() const { return name; }
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public:
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CollideFunc collide;
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const char* name;
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};
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struct Intersector1
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{
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Intersector1 (ErrorFunc error = nullptr)
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: intersect((IntersectFunc)error), occluded((OccludedFunc)error), name(nullptr) {}
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Intersector1 (IntersectFunc intersect, OccludedFunc occluded, const char* name)
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: intersect(intersect), occluded(occluded), pointQuery(nullptr), name(name) {}
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Intersector1 (IntersectFunc intersect, OccludedFunc occluded, PointQueryFunc pointQuery, const char* name)
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: intersect(intersect), occluded(occluded), pointQuery(pointQuery), name(name) {}
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operator bool() const { return name; }
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public:
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static const char* type;
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IntersectFunc intersect;
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OccludedFunc occluded;
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PointQueryFunc pointQuery;
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const char* name;
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};
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struct Intersector4
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{
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Intersector4 (ErrorFunc error = nullptr)
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: intersect((IntersectFunc4)error), occluded((OccludedFunc4)error), name(nullptr) {}
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Intersector4 (IntersectFunc4 intersect, OccludedFunc4 occluded, const char* name)
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: intersect(intersect), occluded(occluded), name(name) {}
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operator bool() const { return name; }
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public:
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static const char* type;
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IntersectFunc4 intersect;
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OccludedFunc4 occluded;
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const char* name;
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};
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struct Intersector8
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{
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Intersector8 (ErrorFunc error = nullptr)
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: intersect((IntersectFunc8)error), occluded((OccludedFunc8)error), name(nullptr) {}
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Intersector8 (IntersectFunc8 intersect, OccludedFunc8 occluded, const char* name)
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: intersect(intersect), occluded(occluded), name(name) {}
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operator bool() const { return name; }
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public:
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static const char* type;
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IntersectFunc8 intersect;
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OccludedFunc8 occluded;
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const char* name;
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};
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struct Intersector16
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{
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Intersector16 (ErrorFunc error = nullptr)
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: intersect((IntersectFunc16)error), occluded((OccludedFunc16)error), name(nullptr) {}
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Intersector16 (IntersectFunc16 intersect, OccludedFunc16 occluded, const char* name)
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: intersect(intersect), occluded(occluded), name(name) {}
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operator bool() const { return name; }
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public:
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static const char* type;
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IntersectFunc16 intersect;
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OccludedFunc16 occluded;
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const char* name;
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};
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struct IntersectorN
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{
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IntersectorN (ErrorFunc error = nullptr)
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: intersect((IntersectFuncN)error), occluded((OccludedFuncN)error), name(nullptr) {}
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IntersectorN (IntersectFuncN intersect, OccludedFuncN occluded, const char* name)
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: intersect(intersect), occluded(occluded), name(name) {}
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operator bool() const { return name; }
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public:
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static const char* type;
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IntersectFuncN intersect;
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OccludedFuncN occluded;
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const char* name;
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};
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struct Intersectors
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{
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Intersectors()
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: ptr(nullptr), leafIntersector(nullptr), collider(nullptr), intersector1(nullptr), intersector4(nullptr), intersector8(nullptr), intersector16(nullptr), intersectorN(nullptr) {}
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Intersectors (ErrorFunc error)
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: ptr(nullptr), leafIntersector(nullptr), collider(error), intersector1(error), intersector4(error), intersector8(error), intersector16(error), intersectorN(error) {}
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void print(size_t ident)
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{
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if (collider.name) {
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for (size_t i=0; i<ident; i++) std::cout << " ";
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std::cout << "collider = " << collider.name << std::endl;
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}
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if (intersector1.name) {
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for (size_t i=0; i<ident; i++) std::cout << " ";
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std::cout << "intersector1 = " << intersector1.name << std::endl;
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}
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if (intersector4.name) {
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for (size_t i=0; i<ident; i++) std::cout << " ";
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std::cout << "intersector4 = " << intersector4.name << std::endl;
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}
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if (intersector8.name) {
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for (size_t i=0; i<ident; i++) std::cout << " ";
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std::cout << "intersector8 = " << intersector8.name << std::endl;
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}
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if (intersector16.name) {
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for (size_t i=0; i<ident; i++) std::cout << " ";
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std::cout << "intersector16 = " << intersector16.name << std::endl;
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}
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if (intersectorN.name) {
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for (size_t i=0; i<ident; i++) std::cout << " ";
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std::cout << "intersectorN = " << intersectorN.name << std::endl;
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}
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}
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void select(bool filter)
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{
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if (intersector4_filter) {
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if (filter) intersector4 = intersector4_filter;
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else intersector4 = intersector4_nofilter;
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}
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if (intersector8_filter) {
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if (filter) intersector8 = intersector8_filter;
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else intersector8 = intersector8_nofilter;
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}
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if (intersector16_filter) {
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if (filter) intersector16 = intersector16_filter;
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else intersector16 = intersector16_nofilter;
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}
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if (intersectorN_filter) {
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if (filter) intersectorN = intersectorN_filter;
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else intersectorN = intersectorN_nofilter;
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}
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}
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__forceinline bool pointQuery (PointQuery* query, PointQueryContext* context) {
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assert(intersector1.pointQuery);
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return intersector1.pointQuery(this,query,context);
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}
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/*! collides two scenes */
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__forceinline void collide (Accel* scene0, Accel* scene1, RTCCollideFunc callback, void* userPtr) {
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assert(collider.collide);
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collider.collide(scene0->intersectors.ptr,scene1->intersectors.ptr,callback,userPtr);
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}
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/*! Intersects a single ray with the scene. */
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__forceinline void intersect (RTCRayHit& ray, IntersectContext* context) {
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assert(intersector1.intersect);
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intersector1.intersect(this,ray,context);
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}
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/*! Intersects a packet of 4 rays with the scene. */
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__forceinline void intersect4 (const void* valid, RTCRayHit4& ray, IntersectContext* context) {
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assert(intersector4.intersect);
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intersector4.intersect(valid,this,ray,context);
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}
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/*! Intersects a packet of 8 rays with the scene. */
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__forceinline void intersect8 (const void* valid, RTCRayHit8& ray, IntersectContext* context) {
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assert(intersector8.intersect);
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intersector8.intersect(valid,this,ray,context);
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}
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/*! Intersects a packet of 16 rays with the scene. */
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__forceinline void intersect16 (const void* valid, RTCRayHit16& ray, IntersectContext* context) {
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assert(intersector16.intersect);
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intersector16.intersect(valid,this,ray,context);
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}
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/*! Intersects a stream of N rays in SOA layout with the scene. */
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__forceinline void intersectN (RTCRayHitN** rayN, const size_t N, IntersectContext* context)
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{
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assert(intersectorN.intersect);
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intersectorN.intersect(this,rayN,N,context);
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}
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#if defined(__SSE__) || defined(__ARM_NEON)
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__forceinline void intersect(const vbool4& valid, RayHitK<4>& ray, IntersectContext* context) {
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const vint<4> mask = valid.mask32();
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intersect4(&mask,(RTCRayHit4&)ray,context);
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}
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#endif
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#if defined(__AVX__)
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__forceinline void intersect(const vbool8& valid, RayHitK<8>& ray, IntersectContext* context) {
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const vint<8> mask = valid.mask32();
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intersect8(&mask,(RTCRayHit8&)ray,context);
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}
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#endif
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#if defined(__AVX512F__)
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__forceinline void intersect(const vbool16& valid, RayHitK<16>& ray, IntersectContext* context) {
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const vint<16> mask = valid.mask32();
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intersect16(&mask,(RTCRayHit16&)ray,context);
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}
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#endif
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template<int K>
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__forceinline void intersectN (RayHitK<K>** rayN, const size_t N, IntersectContext* context)
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{
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intersectN((RTCRayHitN**)rayN,N,context);
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}
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/*! Tests if single ray is occluded by the scene. */
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__forceinline void occluded (RTCRay& ray, IntersectContext* context) {
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assert(intersector1.occluded);
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intersector1.occluded(this,ray,context);
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}
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/*! Tests if a packet of 4 rays is occluded by the scene. */
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__forceinline void occluded4 (const void* valid, RTCRay4& ray, IntersectContext* context) {
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assert(intersector4.occluded);
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intersector4.occluded(valid,this,ray,context);
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}
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/*! Tests if a packet of 8 rays is occluded by the scene. */
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__forceinline void occluded8 (const void* valid, RTCRay8& ray, IntersectContext* context) {
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assert(intersector8.occluded);
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intersector8.occluded(valid,this,ray,context);
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}
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/*! Tests if a packet of 16 rays is occluded by the scene. */
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__forceinline void occluded16 (const void* valid, RTCRay16& ray, IntersectContext* context) {
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assert(intersector16.occluded);
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intersector16.occluded(valid,this,ray,context);
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}
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/*! Tests if a stream of N rays in SOA layout is occluded by the scene. */
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__forceinline void occludedN (RTCRayN** rayN, const size_t N, IntersectContext* context)
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{
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assert(intersectorN.occluded);
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intersectorN.occluded(this,rayN,N,context);
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}
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#if defined(__SSE__) || defined(__ARM_NEON)
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__forceinline void occluded(const vbool4& valid, RayK<4>& ray, IntersectContext* context) {
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const vint<4> mask = valid.mask32();
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occluded4(&mask,(RTCRay4&)ray,context);
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}
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#endif
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#if defined(__AVX__)
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__forceinline void occluded(const vbool8& valid, RayK<8>& ray, IntersectContext* context) {
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const vint<8> mask = valid.mask32();
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occluded8(&mask,(RTCRay8&)ray,context);
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}
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#endif
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#if defined(__AVX512F__)
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__forceinline void occluded(const vbool16& valid, RayK<16>& ray, IntersectContext* context) {
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const vint<16> mask = valid.mask32();
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occluded16(&mask,(RTCRay16&)ray,context);
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}
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#endif
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template<int K>
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__forceinline void occludedN (RayK<K>** rayN, const size_t N, IntersectContext* context)
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{
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occludedN((RTCRayN**)rayN,N,context);
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}
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/*! Tests if single ray is occluded by the scene. */
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__forceinline void intersect(RTCRay& ray, IntersectContext* context) {
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occluded(ray, context);
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}
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/*! Tests if a packet of K rays is occluded by the scene. */
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template<int K>
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__forceinline void intersect(const vbool<K>& valid, RayK<K>& ray, IntersectContext* context) {
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occluded(valid, ray, context);
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}
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/*! Tests if a packet of N rays in SOA layout is occluded by the scene. */
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template<int K>
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__forceinline void intersectN(RayK<K>** rayN, const size_t N, IntersectContext* context) {
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occludedN(rayN, N, context);
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}
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public:
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AccelData* ptr;
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void* leafIntersector;
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Collider collider;
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Intersector1 intersector1;
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Intersector4 intersector4;
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Intersector4 intersector4_filter;
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Intersector4 intersector4_nofilter;
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Intersector8 intersector8;
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Intersector8 intersector8_filter;
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Intersector8 intersector8_nofilter;
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Intersector16 intersector16;
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Intersector16 intersector16_filter;
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Intersector16 intersector16_nofilter;
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IntersectorN intersectorN;
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IntersectorN intersectorN_filter;
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IntersectorN intersectorN_nofilter;
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};
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public:
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/*! Construction */
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Accel (const AccelData::Type type)
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: AccelData(type) {}
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/*! Construction */
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Accel (const AccelData::Type type, const Intersectors& intersectors)
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: AccelData(type), intersectors(intersectors) {}
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/*! Virtual destructor */
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virtual ~Accel() {}
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/*! makes the acceleration structure immutable */
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virtual void immutable () {}
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/*! build acceleration structure */
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virtual void build () = 0;
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public:
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Intersectors intersectors;
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};
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#define DEFINE_COLLIDER(symbol,collider) \
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Accel::Collider symbol() { \
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return Accel::Collider((Accel::CollideFunc)collider::collide, \
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TOSTRING(isa) "::" TOSTRING(symbol)); \
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}
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#define DEFINE_INTERSECTOR1(symbol,intersector) \
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Accel::Intersector1 symbol() { \
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return Accel::Intersector1((Accel::IntersectFunc )intersector::intersect, \
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(Accel::OccludedFunc )intersector::occluded, \
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(Accel::PointQueryFunc)intersector::pointQuery,\
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TOSTRING(isa) "::" TOSTRING(symbol)); \
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}
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#define DEFINE_INTERSECTOR4(symbol,intersector) \
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Accel::Intersector4 symbol() { \
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return Accel::Intersector4((Accel::IntersectFunc4)intersector::intersect, \
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(Accel::OccludedFunc4)intersector::occluded, \
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TOSTRING(isa) "::" TOSTRING(symbol)); \
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}
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#define DEFINE_INTERSECTOR8(symbol,intersector) \
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Accel::Intersector8 symbol() { \
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return Accel::Intersector8((Accel::IntersectFunc8)intersector::intersect, \
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(Accel::OccludedFunc8)intersector::occluded, \
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TOSTRING(isa) "::" TOSTRING(symbol)); \
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}
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#define DEFINE_INTERSECTOR16(symbol,intersector) \
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Accel::Intersector16 symbol() { \
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return Accel::Intersector16((Accel::IntersectFunc16)intersector::intersect, \
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(Accel::OccludedFunc16)intersector::occluded, \
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TOSTRING(isa) "::" TOSTRING(symbol)); \
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}
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#define DEFINE_INTERSECTORN(symbol,intersector) \
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Accel::IntersectorN symbol() { \
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return Accel::IntersectorN((Accel::IntersectFuncN)intersector::intersect, \
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(Accel::OccludedFuncN)intersector::occluded, \
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TOSTRING(isa) "::" TOSTRING(symbol)); \
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}
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/* ray stream filter interface */
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typedef void (*intersectStreamAOS_func)(Scene* scene, RTCRayHit* _rayN, const size_t N, const size_t stride, IntersectContext* context);
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typedef void (*intersectStreamAOP_func)(Scene* scene, RTCRayHit** _rayN, const size_t N, IntersectContext* context);
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typedef void (*intersectStreamSOA_func)(Scene* scene, char* rayN, const size_t N, const size_t streams, const size_t stream_offset, IntersectContext* context);
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typedef void (*intersectStreamSOP_func)(Scene* scene, const RTCRayHitNp* rayN, const size_t N, IntersectContext* context);
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typedef void (*occludedStreamAOS_func)(Scene* scene, RTCRay* _rayN, const size_t N, const size_t stride, IntersectContext* context);
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typedef void (*occludedStreamAOP_func)(Scene* scene, RTCRay** _rayN, const size_t N, IntersectContext* context);
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typedef void (*occludedStreamSOA_func)(Scene* scene, char* rayN, const size_t N, const size_t streams, const size_t stream_offset, IntersectContext* context);
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typedef void (*occludedStreamSOP_func)(Scene* scene, const RTCRayNp* rayN, const size_t N, IntersectContext* context);
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struct RayStreamFilterFuncs
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{
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RayStreamFilterFuncs()
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: intersectAOS(nullptr), intersectAOP(nullptr), intersectSOA(nullptr), intersectSOP(nullptr),
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occludedAOS(nullptr), occludedAOP(nullptr), occludedSOA(nullptr), occludedSOP(nullptr) {}
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RayStreamFilterFuncs(void (*ptr) ())
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: intersectAOS((intersectStreamAOS_func) ptr), intersectAOP((intersectStreamAOP_func) ptr), intersectSOA((intersectStreamSOA_func) ptr), intersectSOP((intersectStreamSOP_func) ptr),
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occludedAOS((occludedStreamAOS_func) ptr), occludedAOP((occludedStreamAOP_func) ptr), occludedSOA((occludedStreamSOA_func) ptr), occludedSOP((occludedStreamSOP_func) ptr) {}
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RayStreamFilterFuncs(intersectStreamAOS_func intersectAOS, intersectStreamAOP_func intersectAOP, intersectStreamSOA_func intersectSOA, intersectStreamSOP_func intersectSOP,
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occludedStreamAOS_func occludedAOS, occludedStreamAOP_func occludedAOP, occludedStreamSOA_func occludedSOA, occludedStreamSOP_func occludedSOP)
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: intersectAOS(intersectAOS), intersectAOP(intersectAOP), intersectSOA(intersectSOA), intersectSOP(intersectSOP),
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occludedAOS(occludedAOS), occludedAOP(occludedAOP), occludedSOA(occludedSOA), occludedSOP(occludedSOP) {}
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|
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public:
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intersectStreamAOS_func intersectAOS;
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intersectStreamAOP_func intersectAOP;
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|
intersectStreamSOA_func intersectSOA;
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intersectStreamSOP_func intersectSOP;
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|
|
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occludedStreamAOS_func occludedAOS;
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occludedStreamAOP_func occludedAOP;
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occludedStreamSOA_func occludedSOA;
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|
occludedStreamSOP_func occludedSOP;
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};
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|
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typedef RayStreamFilterFuncs (*RayStreamFilterFuncsType)();
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}
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