115 lines
3.5 KiB
C++
115 lines
3.5 KiB
C++
// Copyright 2009-2020 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 "instance_stack.h"
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namespace embree
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{
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/* Hit structure for K hits */
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template<int K>
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struct HitK
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{
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/* Default construction does nothing */
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__forceinline HitK() {}
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/* Constructs a hit */
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__forceinline HitK(const RTCIntersectContext* context, const vuint<K>& geomID, const vuint<K>& primID, const vfloat<K>& u, const vfloat<K>& v, const Vec3vf<K>& Ng)
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: Ng(Ng), u(u), v(v), primID(primID), geomID(geomID)
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{
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for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l)
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instID[l] = RTC_INVALID_GEOMETRY_ID;
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instance_id_stack::copy(context->instID, instID);
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}
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/* Returns the size of the hit */
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static __forceinline size_t size() { return K; }
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public:
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Vec3vf<K> Ng; // geometry normal
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vfloat<K> u; // barycentric u coordinate of hit
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vfloat<K> v; // barycentric v coordinate of hit
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vuint<K> primID; // primitive ID
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vuint<K> geomID; // geometry ID
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vuint<K> instID[RTC_MAX_INSTANCE_LEVEL_COUNT]; // instance ID
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};
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/* Specialization for a single hit */
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template<>
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struct __aligned(16) HitK<1>
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{
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/* Default construction does nothing */
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__forceinline HitK() {}
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/* Constructs a hit */
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__forceinline HitK(const RTCIntersectContext* context, unsigned int geomID, unsigned int primID, float u, float v, const Vec3fa& Ng)
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: Ng(Ng.x,Ng.y,Ng.z), u(u), v(v), primID(primID), geomID(geomID)
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{
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instance_id_stack::copy(context->instID, instID);
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}
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/* Returns the size of the hit */
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static __forceinline size_t size() { return 1; }
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public:
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Vec3<float> Ng; // geometry normal
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float u; // barycentric u coordinate of hit
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float v; // barycentric v coordinate of hit
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unsigned int primID; // primitive ID
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unsigned int geomID; // geometry ID
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unsigned int instID[RTC_MAX_INSTANCE_LEVEL_COUNT]; // instance ID
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};
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/* Shortcuts */
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typedef HitK<1> Hit;
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typedef HitK<4> Hit4;
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typedef HitK<8> Hit8;
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typedef HitK<16> Hit16;
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/* Outputs hit to stream */
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template<int K>
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__forceinline embree_ostream operator<<(embree_ostream cout, const HitK<K>& ray)
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{
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cout << "{ " << embree_endl
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<< " Ng = " << ray.Ng << embree_endl
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<< " u = " << ray.u << embree_endl
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<< " v = " << ray.v << embree_endl
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<< " primID = " << ray.primID << embree_endl
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<< " geomID = " << ray.geomID << embree_endl
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<< " instID =";
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for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l)
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{
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cout << " " << ray.instID[l];
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}
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cout << embree_endl;
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return cout << "}";
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}
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template<typename Hit>
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__forceinline void copyHitToRay(RayHit& ray, const Hit& hit)
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{
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ray.Ng = hit.Ng;
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ray.u = hit.u;
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ray.v = hit.v;
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ray.primID = hit.primID;
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ray.geomID = hit.geomID;
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instance_id_stack::copy(hit.instID, ray.instID);
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}
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template<int K>
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__forceinline void copyHitToRay(const vbool<K> &mask, RayHitK<K> &ray, const HitK<K> &hit)
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{
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vfloat<K>::storeu(mask,&ray.Ng.x, hit.Ng.x);
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vfloat<K>::storeu(mask,&ray.Ng.y, hit.Ng.y);
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vfloat<K>::storeu(mask,&ray.Ng.z, hit.Ng.z);
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vfloat<K>::storeu(mask,&ray.u, hit.u);
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vfloat<K>::storeu(mask,&ray.v, hit.v);
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vuint<K>::storeu(mask,&ray.primID, hit.primID);
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vuint<K>::storeu(mask,&ray.geomID, hit.geomID);
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instance_id_stack::copy(hit.instID, ray.instID, mask);
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}
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}
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