// Copyright 2009-2021 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(); } } }; } }