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-rw-r--r--thirdparty/embree-aarch64/kernels/geometry/coneline_intersector.h209
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);
- }
- };
- }
-}
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