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// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#ifndef __RTC_RAY_ISPH__
#define __RTC_RAY_ISPH__
#include "rtcore_common.isph"
/* Ray structure */
struct RTC_ALIGN(16) RTCRay
{
float org_x; // x coordinate of ray origin
float org_y; // y coordinate of ray origin
float org_z; // z coordinate of ray origin
float tnear; // start of ray segment
float dir_x; // x coordinate of ray direction
float dir_y; // y coordinate of ray direction
float dir_z; // z coordinate of ray direction
float time; // time of this ray for motion blur
float tfar; // end of ray segment (set to hit distance)
unsigned int mask; // ray mask
unsigned int id; // ray ID
unsigned int flags; // ray flags
};
/* Hit structure */
struct RTC_ALIGN(16) RTCHit
{
float Ng_x; // x coordinate of geometry normal
float Ng_y; // y coordinate of geometry normal
float Ng_z; // z coordinate of 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 prim ID
#endif
};
/* Combined ray/hit structure */
struct RTCRayHit
{
RTCRay ray;
RTCHit hit;
};
struct RTCRayN;
struct RTCHitN;
struct RTCRayHitN;
/* Helper functions to access ray packets of runtime size N */
RTC_FORCEINLINE varying float& RTCRayN_org_x(RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((uniform float*)ray)[0*N+i]); }
RTC_FORCEINLINE varying float& RTCRayN_org_y(RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((uniform float*)ray)[1*N+i]); }
RTC_FORCEINLINE varying float& RTCRayN_org_z(RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((uniform float*)ray)[2*N+i]); }
RTC_FORCEINLINE varying float& RTCRayN_tnear(RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((uniform float*)ray)[3*N+i]); }
RTC_FORCEINLINE varying float& RTCRayN_dir_x(RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((uniform float*)ray)[4*N+i]); }
RTC_FORCEINLINE varying float& RTCRayN_dir_y(RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((uniform float*)ray)[5*N+i]); }
RTC_FORCEINLINE varying float& RTCRayN_dir_z(RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((uniform float*)ray)[6*N+i]); }
RTC_FORCEINLINE varying float& RTCRayN_time (RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((uniform float*)ray)[7*N+i]); }
RTC_FORCEINLINE varying float& RTCRayN_tfar (RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((uniform float*)ray)[8*N+i]); }
RTC_FORCEINLINE varying unsigned int& RTCRayN_mask (RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying unsigned int* uniform) &((uniform unsigned int*)ray)[9*N+i]); }
RTC_FORCEINLINE varying unsigned int& RTCRayN_id (RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying unsigned int* uniform) &((uniform unsigned int*)ray)[10*N+i]); }
RTC_FORCEINLINE varying unsigned int& RTCRayN_flags(RTCRayN* uniform ray, uniform unsigned int N, uniform unsigned int i) { return *((varying unsigned int* uniform) &((uniform unsigned int*)ray)[11*N+i]); }
/* Helper functions to access hit packets of runtime size N */
RTC_FORCEINLINE varying float& RTCHitN_Ng_x(const RTCHitN* uniform hit, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((float* uniform)hit)[0*N+i]); }
RTC_FORCEINLINE varying float& RTCHitN_Ng_y(const RTCHitN* uniform hit, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((float* uniform)hit)[1*N+i]); }
RTC_FORCEINLINE varying float& RTCHitN_Ng_z(const RTCHitN* uniform hit, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((float* uniform)hit)[2*N+i]); }
RTC_FORCEINLINE varying float& RTCHitN_u (const RTCHitN* uniform hit, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((float* uniform)hit)[3*N+i]); }
RTC_FORCEINLINE varying float& RTCHitN_v (const RTCHitN* uniform hit, uniform unsigned int N, uniform unsigned int i) { return *((varying float* uniform) &((float* uniform)hit)[4*N+i]); }
RTC_FORCEINLINE varying unsigned int& RTCHitN_primID(const RTCHitN* uniform hit, uniform unsigned int N, uniform unsigned int i) { return *((varying unsigned int* uniform) &((unsigned int* uniform )hit)[5*N+i]); }
RTC_FORCEINLINE varying unsigned int& RTCHitN_geomID(const RTCHitN* uniform hit, uniform unsigned int N, uniform unsigned int i) { return *((varying unsigned int* uniform) &((unsigned int* uniform )hit)[6*N+i]); }
RTC_FORCEINLINE varying unsigned int& RTCHitN_instID(const RTCHitN* uniform hit, uniform unsigned int N, uniform unsigned int i, uniform unsigned int l) { return *((varying unsigned int* uniform) &((unsigned int* uniform )hit)[7*N+i+l*N]); }
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
RTC_FORCEINLINE varying unsigned int& RTCHitN_instPrimID(const RTCHitN* uniform hit, uniform unsigned int N, uniform unsigned int i, uniform unsigned int l) { return *((varying unsigned int* uniform) &((unsigned int* uniform )hit)[7*N + N*RTC_MAX_INSTANCE_LEVEL_COUNT + N*l + i]); }
#endif
/* Helper functions to extract RTCRayN and RTCHitN from RTCRayHitN */
RTC_FORCEINLINE RTCRayN* uniform RTCRayHitN_RayN(RTCRayHitN* uniform rayhit, uniform unsigned int N) { return (RTCRayN* uniform)&((uniform float* uniform)rayhit)[0*N]; }
RTC_FORCEINLINE RTCHitN* uniform RTCRayHitN_HitN(RTCRayHitN* uniform rayhit, uniform unsigned int N) { return (RTCHitN* uniform)&((uniform float* uniform)rayhit)[12*N]; }
RTC_FORCEINLINE RTCRay rtcGetRayFromRayN(RTCRayN* uniform rayN, uniform unsigned int N, uniform unsigned int i)
{
RTCRay ray;
ray.org_x = RTCRayN_org_x(rayN,N,i);
ray.org_y = RTCRayN_org_y(rayN,N,i);
ray.org_z = RTCRayN_org_z(rayN,N,i);
ray.tnear = RTCRayN_tnear(rayN,N,i);
ray.dir_x = RTCRayN_dir_x(rayN,N,i);
ray.dir_y = RTCRayN_dir_y(rayN,N,i);
ray.dir_z = RTCRayN_dir_z(rayN,N,i);
ray.time = RTCRayN_time(rayN,N,i);
ray.tfar = RTCRayN_tfar(rayN,N,i);
ray.mask = RTCRayN_mask(rayN,N,i);
ray.id = RTCRayN_id(rayN,N,i);
ray.flags = RTCRayN_flags(rayN,N,i);
return ray;
}
RTC_FORCEINLINE RTCHit rtcGetHitFromHitN(RTCHitN* uniform hitN, uniform unsigned int N, uniform unsigned int i)
{
RTCHit hit;
hit.Ng_x = RTCHitN_Ng_x(hitN,N,i);
hit.Ng_y = RTCHitN_Ng_y(hitN,N,i);
hit.Ng_z = RTCHitN_Ng_z(hitN,N,i);
hit.u = RTCHitN_u(hitN,N,i);
hit.v = RTCHitN_v(hitN,N,i);
hit.primID = RTCHitN_primID(hitN,N,i);
hit.geomID = RTCHitN_geomID(hitN,N,i);
for (uniform unsigned int l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; l++) {
hit.instID[l] = RTCHitN_instID(hitN,N,i,l);
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
hit.instPrimID[l] = RTCHitN_instPrimID(hitN,N,i,l);
#endif
}
return hit;
}
RTC_FORCEINLINE void rtcCopyHitToHitN(RTCHitN* uniform hitN, const varying RTCHit* uniform hit, uniform unsigned int N, uniform unsigned int i)
{
RTCHitN_Ng_x(hitN,N,i) = hit->Ng_x;
RTCHitN_Ng_y(hitN,N,i) = hit->Ng_y;
RTCHitN_Ng_z(hitN,N,i) = hit->Ng_z;
RTCHitN_u(hitN,N,i) = hit->u;
RTCHitN_v(hitN,N,i) = hit->v;
RTCHitN_primID(hitN,N,i) = hit->primID;
RTCHitN_geomID(hitN,N,i) = hit->geomID;
for (uniform unsigned int l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; l++) {
RTCHitN_instID(hitN,N,i,l) = hit->instID[l];
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
RTCHitN_instPrimID(hitN,N,i,l) = hit->instPrimID[l];
#endif
}
}
RTC_FORCEINLINE RTCRayHit rtcGetRayHitFromRayHitN(RTCRayHitN* uniform rayhitN, uniform unsigned int N, uniform unsigned int i)
{
RTCRayHit rh;
RTCRayN* uniform ray = RTCRayHitN_RayN(rayhitN,N);
rh.ray.org_x = RTCRayN_org_x(ray,N,i);
rh.ray.org_y = RTCRayN_org_y(ray,N,i);
rh.ray.org_z = RTCRayN_org_z(ray,N,i);
rh.ray.tnear = RTCRayN_tnear(ray,N,i);
rh.ray.dir_x = RTCRayN_dir_x(ray,N,i);
rh.ray.dir_y = RTCRayN_dir_y(ray,N,i);
rh.ray.dir_z = RTCRayN_dir_z(ray,N,i);
rh.ray.time = RTCRayN_time(ray,N,i);
rh.ray.tfar = RTCRayN_tfar(ray,N,i);
rh.ray.mask = RTCRayN_mask(ray,N,i);
rh.ray.id = RTCRayN_id(ray,N,i);
rh.ray.flags = RTCRayN_flags(ray,N,i);
RTCHitN* uniform hit = RTCRayHitN_HitN(rayhitN,N);
rh.hit.Ng_x = RTCHitN_Ng_x(hit,N,i);
rh.hit.Ng_y = RTCHitN_Ng_y(hit,N,i);
rh.hit.Ng_z = RTCHitN_Ng_z(hit,N,i);
rh.hit.u = RTCHitN_u(hit,N,i);
rh.hit.v = RTCHitN_v(hit,N,i);
rh.hit.primID = RTCHitN_primID(hit,N,i);
rh.hit.geomID = RTCHitN_geomID(hit,N,i);
for (uniform unsigned int l = 0; l < RTC_MAX_INSTANCE_LEVEL_COUNT; l++) {
rh.hit.instID[l] = RTCHitN_instID(hit,N,i,l);
#if defined(RTC_GEOMETRY_INSTANCE_ARRAY)
rh.hit.instPrimID[l] = RTCHitN_instPrimID(hit,N,i,l);
#endif
}
return rh;
}
#endif
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