49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
// Copyright 2009-2020 Intel Corporation
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
#pragma once
|
|
|
|
#include "../common/ray.h"
|
|
#include "../common/geometry.h"
|
|
|
|
namespace embree
|
|
{
|
|
namespace isa
|
|
{
|
|
struct CurvePrecalculations1
|
|
{
|
|
float depth_scale;
|
|
LinearSpace3fa ray_space;
|
|
|
|
__forceinline CurvePrecalculations1() {}
|
|
|
|
__forceinline CurvePrecalculations1(const Ray& ray, const void* ptr)
|
|
{
|
|
depth_scale = rsqrt(dot(ray.dir,ray.dir));
|
|
LinearSpace3fa space = frame(depth_scale*ray.dir);
|
|
space.vz *= depth_scale;
|
|
ray_space = space.transposed();
|
|
}
|
|
};
|
|
|
|
template<int K>
|
|
struct CurvePrecalculationsK
|
|
{
|
|
vfloat<K> depth_scale;
|
|
LinearSpace3fa ray_space[K];
|
|
|
|
__forceinline CurvePrecalculationsK(const vbool<K>& valid, const RayK<K>& ray)
|
|
{
|
|
size_t mask = movemask(valid);
|
|
depth_scale = rsqrt(dot(ray.dir,ray.dir));
|
|
while (mask) {
|
|
size_t k = bscf(mask);
|
|
Vec3fa ray_dir_k = Vec3fa(ray.dir.x[k],ray.dir.y[k],ray.dir.z[k]);
|
|
LinearSpace3fa ray_space_k = frame(depth_scale[k]*ray_dir_k);
|
|
ray_space_k.vz *= depth_scale[k];
|
|
ray_space[k] = ray_space_k.transposed();
|
|
}
|
|
}
|
|
};
|
|
}
|
|
}
|