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author | RĂ©mi Verschelde <remi@verschelde.fr> | 2021-05-21 18:30:02 +0200 |
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committer | GitHub <noreply@github.com> | 2021-05-21 18:30:02 +0200 |
commit | 3ee034451a9349e7de26decc662afefd7ab8c460 (patch) | |
tree | a8bec3fbb06c2eaca05a075f5ffe2cdd2d94f04a /thirdparty/embree-aarch64/kernels/geometry/coneline_intersector.h | |
parent | 8fa07eae145e1e37eb8708ce8c117188b58e3ecc (diff) | |
parent | 767e374dced69b45db0afb30ca2ccf0bbbeef672 (diff) |
Merge pull request #48885 from JFonS/upgrade_embree
Upgrade Embree to the latest official release (3.13.0).
Diffstat (limited to 'thirdparty/embree-aarch64/kernels/geometry/coneline_intersector.h')
-rw-r--r-- | thirdparty/embree-aarch64/kernels/geometry/coneline_intersector.h | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/thirdparty/embree-aarch64/kernels/geometry/coneline_intersector.h b/thirdparty/embree-aarch64/kernels/geometry/coneline_intersector.h deleted file mode 100644 index 0902baff7d..0000000000 --- a/thirdparty/embree-aarch64/kernels/geometry/coneline_intersector.h +++ /dev/null @@ -1,209 +0,0 @@ -// Copyright 2009-2020 Intel Corporation -// SPDX-License-Identifier: Apache-2.0 - -#pragma once - -#include "../common/ray.h" -#include "curve_intersector_precalculations.h" - -namespace embree -{ - namespace isa - { - namespace __coneline_internal - { - template<int M, typename Epilog, typename ray_tfar_func> - static __forceinline bool intersectCone(const vbool<M>& valid_i, - const Vec3vf<M>& ray_org_in, const Vec3vf<M>& ray_dir, - const vfloat<M>& ray_tnear, const ray_tfar_func& ray_tfar, - const Vec4vf<M>& v0, const Vec4vf<M>& v1, - const vbool<M>& cL, const vbool<M>& cR, - const Epilog& epilog) - { - vbool<M> valid = valid_i; - - /* move ray origin closer to make calculations numerically stable */ - const vfloat<M> dOdO = sqr(ray_dir); - const vfloat<M> rcp_dOdO = rcp(dOdO); - const Vec3vf<M> center = vfloat<M>(0.5f)*(v0.xyz()+v1.xyz()); - const vfloat<M> dt = dot(center-ray_org_in,ray_dir)*rcp_dOdO; - const Vec3vf<M> ray_org = ray_org_in + dt*ray_dir; - - const Vec3vf<M> dP = v1.xyz() - v0.xyz(); - const Vec3vf<M> p0 = ray_org - v0.xyz(); - const Vec3vf<M> p1 = ray_org - v1.xyz(); - - const vfloat<M> dPdP = sqr(dP); - const vfloat<M> dP0 = dot(p0,dP); - const vfloat<M> dP1 = dot(p1,dP); - const vfloat<M> dOdP = dot(ray_dir,dP); - - // intersect cone body - const vfloat<M> dr = v0.w - v1.w; - const vfloat<M> hy = dPdP + sqr(dr); - const vfloat<M> dO0 = dot(ray_dir,p0); - const vfloat<M> OO = sqr(p0); - const vfloat<M> dPdP2 = sqr(dPdP); - const vfloat<M> dPdPr0 = dPdP*v0.w; - - const vfloat<M> A = dPdP2 - sqr(dOdP)*hy; - const vfloat<M> B = dPdP2*dO0 - dP0*dOdP*hy + dPdPr0*(dr*dOdP); - const vfloat<M> C = dPdP2*OO - sqr(dP0)*hy + dPdPr0*(2.0f*dr*dP0 - dPdPr0); - - const vfloat<M> D = B*B - A*C; - valid &= D >= 0.0f; - if (unlikely(none(valid))) { - return false; - } - - /* standard case for "non-parallel" rays */ - const vfloat<M> Q = sqrt(D); - const vfloat<M> rcp_A = rcp(A); - /* special case for rays that are "parallel" to the cone - assume miss */ - const vbool<M> isParallel = abs(A) <= min_rcp_input; - - vfloat<M> t_cone_lower = select (isParallel, neg_inf, (-B-Q)*rcp_A); - vfloat<M> t_cone_upper = select (isParallel, pos_inf, (-B+Q)*rcp_A); - const vfloat<M> y_lower = dP0 + t_cone_lower*dOdP; - const vfloat<M> y_upper = dP0 + t_cone_upper*dOdP; - t_cone_lower = select(valid & y_lower > 0.0f & y_lower < dPdP, t_cone_lower, pos_inf); - t_cone_upper = select(valid & y_upper > 0.0f & y_upper < dPdP, t_cone_upper, neg_inf); - - const vbool<M> hitDisk0 = valid & cL; - const vbool<M> hitDisk1 = valid & cR; - const vfloat<M> rcp_dOdP = rcp(dOdP); - const vfloat<M> t_disk0 = select (hitDisk0, select (sqr(p0*dOdP-ray_dir*dP0)<(sqr(v0.w)*sqr(dOdP)), -dP0*rcp_dOdP, pos_inf), pos_inf); - const vfloat<M> t_disk1 = select (hitDisk1, select (sqr(p1*dOdP-ray_dir*dP1)<(sqr(v1.w)*sqr(dOdP)), -dP1*rcp_dOdP, pos_inf), pos_inf); - const vfloat<M> t_disk_lower = min(t_disk0, t_disk1); - const vfloat<M> t_disk_upper = max(t_disk0, t_disk1); - - const vfloat<M> t_lower = min(t_cone_lower, t_disk_lower); - const vfloat<M> t_upper = max(t_cone_upper, select(t_lower==t_disk_lower, - select(t_disk_upper==vfloat<M>(pos_inf),neg_inf,t_disk_upper), - select(t_disk_lower==vfloat<M>(pos_inf),neg_inf,t_disk_lower))); - - const vbool<M> valid_lower = valid & ray_tnear <= dt+t_lower & dt+t_lower <= ray_tfar() & t_lower != vfloat<M>(pos_inf); - const vbool<M> valid_upper = valid & ray_tnear <= dt+t_upper & dt+t_upper <= ray_tfar() & t_upper != vfloat<M>(neg_inf); - - const vbool<M> valid_first = valid_lower | valid_upper; - if (unlikely(none(valid_first))) - return false; - - const vfloat<M> t_first = select(valid_lower, t_lower, t_upper); - const vfloat<M> y_first = select(valid_lower, y_lower, y_upper); - - const vfloat<M> rcp_dPdP = rcp(dPdP); - const Vec3vf<M> dP2drr0dP = dPdP*dr*v0.w*dP; - const Vec3vf<M> dPhy = dP*hy; - const vbool<M> cone_hit_first = valid & (t_first == t_cone_lower | t_first == t_cone_upper); - const vbool<M> disk0_hit_first = valid & (t_first == t_disk0); - const Vec3vf<M> Ng_first = select(cone_hit_first, dPdP2*(p0+t_first*ray_dir)+dP2drr0dP-dPhy*y_first, select(disk0_hit_first, -dP, dP)); - const vfloat<M> u_first = select(cone_hit_first, y_first*rcp_dPdP, select(disk0_hit_first, vfloat<M>(zero), vfloat<M>(one))); - - /* invoke intersection filter for first hit */ - RoundLineIntersectorHitM<M> hit(u_first,zero,dt+t_first,Ng_first); - const bool is_hit_first = epilog(valid_first, hit); - - /* check for possible second hits before potentially accepted hit */ - const vfloat<M> t_second = t_upper; - const vfloat<M> y_second = y_upper; - const vbool<M> valid_second = valid_lower & valid_upper & (dt+t_upper <= ray_tfar()); - if (unlikely(none(valid_second))) - return is_hit_first; - - /* invoke intersection filter for second hit */ - const vbool<M> cone_hit_second = t_second == t_cone_lower | t_second == t_cone_upper; - const vbool<M> disk0_hit_second = t_second == t_disk0; - const Vec3vf<M> Ng_second = select(cone_hit_second, dPdP2*(p0+t_second*ray_dir)+dP2drr0dP-dPhy*y_second, select(disk0_hit_second, -dP, dP)); - const vfloat<M> u_second = select(cone_hit_second, y_second*rcp_dPdP, select(disk0_hit_first, vfloat<M>(zero), vfloat<M>(one))); - - hit = RoundLineIntersectorHitM<M>(u_second,zero,dt+t_second,Ng_second); - const bool is_hit_second = epilog(valid_second, hit); - - return is_hit_first | is_hit_second; - } - } - - template<int M> - struct ConeLineIntersectorHitM - { - __forceinline ConeLineIntersectorHitM() {} - - __forceinline ConeLineIntersectorHitM(const vfloat<M>& u, const vfloat<M>& v, const vfloat<M>& t, const Vec3vf<M>& Ng) - : vu(u), vv(v), vt(t), vNg(Ng) {} - - __forceinline void finalize() {} - - __forceinline Vec2f uv (const size_t i) const { return Vec2f(vu[i],vv[i]); } - __forceinline float t (const size_t i) const { return vt[i]; } - __forceinline Vec3fa Ng(const size_t i) const { return Vec3fa(vNg.x[i],vNg.y[i],vNg.z[i]); } - - public: - vfloat<M> vu; - vfloat<M> vv; - vfloat<M> vt; - Vec3vf<M> vNg; - }; - - template<int M> - struct ConeCurveIntersector1 - { - typedef CurvePrecalculations1 Precalculations; - - struct ray_tfar { - Ray& ray; - __forceinline ray_tfar(Ray& ray) : ray(ray) {} - __forceinline vfloat<M> operator() () const { return ray.tfar; }; - }; - - template<typename Epilog> - static __forceinline bool intersect(const vbool<M>& valid_i, - Ray& ray, - IntersectContext* context, - const LineSegments* geom, - const Precalculations& pre, - const Vec4vf<M>& v0i, const Vec4vf<M>& v1i, - const vbool<M>& cL, const vbool<M>& cR, - const Epilog& epilog) - { - const Vec3vf<M> ray_org(ray.org.x, ray.org.y, ray.org.z); - const Vec3vf<M> ray_dir(ray.dir.x, ray.dir.y, ray.dir.z); - const vfloat<M> ray_tnear(ray.tnear()); - const Vec4vf<M> v0 = enlargeRadiusToMinWidth(context,geom,ray_org,v0i); - const Vec4vf<M> v1 = enlargeRadiusToMinWidth(context,geom,ray_org,v1i); - return __coneline_internal::intersectCone(valid_i,ray_org,ray_dir,ray_tnear,ray_tfar(ray),v0,v1,cL,cR,epilog); - } - }; - - template<int M, int K> - struct ConeCurveIntersectorK - { - typedef CurvePrecalculationsK<K> Precalculations; - - struct ray_tfar { - RayK<K>& ray; - size_t k; - __forceinline ray_tfar(RayK<K>& ray, size_t k) : ray(ray), k(k) {} - __forceinline vfloat<M> operator() () const { return ray.tfar[k]; }; - }; - - template<typename Epilog> - static __forceinline bool intersect(const vbool<M>& valid_i, - RayK<K>& ray, size_t k, - IntersectContext* context, - const LineSegments* geom, - const Precalculations& pre, - const Vec4vf<M>& v0i, const Vec4vf<M>& v1i, - const vbool<M>& cL, const vbool<M>& cR, - const Epilog& epilog) - { - const Vec3vf<M> ray_org(ray.org.x[k], ray.org.y[k], ray.org.z[k]); - const Vec3vf<M> ray_dir(ray.dir.x[k], ray.dir.y[k], ray.dir.z[k]); - const vfloat<M> ray_tnear = ray.tnear()[k]; - const Vec4vf<M> v0 = enlargeRadiusToMinWidth(context,geom,ray_org,v0i); - const Vec4vf<M> v1 = enlargeRadiusToMinWidth(context,geom,ray_org,v1i); - return __coneline_internal::intersectCone(valid_i,ray_org,ray_dir,ray_tnear,ray_tfar(ray,k),v0,v1,cL,cR,epilog); - } - }; - } -} |