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// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "default.h"
#include "ray.h"
#include "instance_stack.h"
namespace embree
{
/* Hit structure for K hits */
template<int K>
struct HitK
{
/* Default construction does nothing */
__forceinline HitK() {}
/* Constructs a hit */
__forceinline HitK(const RTCRayQueryContext* context, const vuint<K>& geomID, const vuint<K>& primID, const vfloat<K>& u, const vfloat<K>& v, const Vec3vf<K>& Ng)
: Ng(Ng), u(u), v(v), primID(primID), geomID(geomID)
{
for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l) {
instID[l] = RTC_INVALID_GEOMETRY_ID;
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
instPrimID[l] = RTC_INVALID_GEOMETRY_ID;
#endif
}
instance_id_stack::copy_UV<K>(context->instID, instID);
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
instance_id_stack::copy_UV<K>(context->instPrimID, instPrimID);
#endif
}
/* Constructs a hit */
__forceinline HitK(const RTCRayQueryContext* context, const vuint<K>& geomID, const vuint<K>& primID, const Vec2vf<K>& uv, const Vec3vf<K>& Ng)
: HitK(context,geomID,primID,uv.x,uv.y,Ng) {}
/* Returns the size of the hit */
static __forceinline size_t size() { return K; }
public:
Vec3vf<K> Ng; // geometry normal
vfloat<K> u; // barycentric u coordinate of hit
vfloat<K> v; // barycentric v coordinate of hit
vuint<K> primID; // primitive ID
vuint<K> geomID; // geometry ID
vuint<K> instID[RTC_MAX_INSTANCE_LEVEL_COUNT]; // instance ID
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
vuint<K> instPrimID[RTC_MAX_INSTANCE_LEVEL_COUNT]; // instance primitive ID
#endif
};
/* Specialization for a single hit */
template<>
struct __aligned(16) HitK<1>
{
/* Default construction does nothing */
__forceinline HitK() {}
/* Constructs a hit */
__forceinline HitK(const RTCRayQueryContext* context, unsigned int geomID, unsigned int primID, float u, float v, const Vec3fa& Ng)
: Ng(Ng.x,Ng.y,Ng.z), u(u), v(v), primID(primID), geomID(geomID)
{
instance_id_stack::copy_UU(context, context->instID, instID);
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
instance_id_stack::copy_UU(context, context->instPrimID, instPrimID);
#endif
}
/* Constructs a hit */
__forceinline HitK(const RTCRayQueryContext* context, unsigned int geomID, unsigned int primID, const Vec2f& uv, const Vec3fa& Ng)
: HitK<1>(context,geomID,primID,uv.x,uv.y,Ng) {}
/* Returns the size of the hit */
static __forceinline size_t size() { return 1; }
public:
Vec3<float> Ng; // geometry normal
float u; // barycentric u coordinate of hit
float v; // barycentric v coordinate of hit
unsigned int primID; // primitive ID
unsigned int geomID; // geometry ID
unsigned int instID[RTC_MAX_INSTANCE_LEVEL_COUNT]; // instance ID
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
unsigned int instPrimID[RTC_MAX_INSTANCE_LEVEL_COUNT]; // instance primitive ID
#endif
};
/* Shortcuts */
typedef HitK<1> Hit;
typedef HitK<4> Hit4;
typedef HitK<8> Hit8;
typedef HitK<16> Hit16;
typedef HitK<VSIZEX> Hitx;
/* Outputs hit to stream */
template<int K>
__forceinline embree_ostream operator<<(embree_ostream cout, const HitK<K>& ray)
{
cout << "{ " << embree_endl
<< " Ng = " << ray.Ng << embree_endl
<< " u = " << ray.u << embree_endl
<< " v = " << ray.v << embree_endl
<< " primID = " << ray.primID << embree_endl
<< " geomID = " << ray.geomID << embree_endl
<< " instID =";
for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l)
{
cout << " " << ray.instID[l];
}
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
cout << " instPrimID =";
for (unsigned l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; ++l)
{
cout << " " << ray.instPrimID[l];
}
#endif
cout << embree_endl;
return cout << "}";
}
template<typename Hit>
__forceinline void copyHitToRay(RayHit& ray, const Hit& hit)
{
ray.Ng = hit.Ng;
ray.u = hit.u;
ray.v = hit.v;
ray.primID = hit.primID;
ray.geomID = hit.geomID;
instance_id_stack::copy_UU(hit.instID, ray.instID);
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
instance_id_stack::copy_UU(hit.instPrimID, ray.instPrimID);
#endif
}
template<int K>
__forceinline void copyHitToRay(const vbool<K>& mask, RayHitK<K>& ray, const HitK<K>& hit)
{
vfloat<K>::storeu(mask,&ray.Ng.x, hit.Ng.x);
vfloat<K>::storeu(mask,&ray.Ng.y, hit.Ng.y);
vfloat<K>::storeu(mask,&ray.Ng.z, hit.Ng.z);
vfloat<K>::storeu(mask,&ray.u, hit.u);
vfloat<K>::storeu(mask,&ray.v, hit.v);
vuint<K>::storeu(mask,&ray.primID, hit.primID);
vuint<K>::storeu(mask,&ray.geomID, hit.geomID);
instance_id_stack::copy_VV<K>(hit.instID, ray.instID, mask);
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
instance_id_stack::copy_VV<K>(hit.instPrimID, ray.instPrimID, mask);
#endif
}
}
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