// ======================================================================== // // Copyright 2009-2015 Intel Corporation // // // // Licensed under the Apache License, Version 2.0 (the "License"); // // you may not use this file except in compliance with the License. // // You may obtain a copy of the License at // // // // http://www.apache.org/licenses/LICENSE-2.0 // // // // Unless required by applicable law or agreed to in writing, software // // distributed under the License is distributed on an "AS IS" BASIS, // // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // // See the License for the specific language governing permissions and // // limitations under the License. // // ======================================================================== // #ifndef __RTCORE_RAY_H__ #define __RTCORE_RAY_H__ /*! \ingroup embree_kernel_api */ /*! \{ */ /*! \brief Ray structure for an individual ray */ struct RTCORE_ALIGN(16) RTCRay { /* ray data */ public: float org[3]; //!< Ray origin float align0; float dir[3]; //!< Ray direction float align1; float tnear; //!< Start of ray segment float tfar; //!< End of ray segment (set to hit distance) float time; //!< Time of this ray for motion blur unsigned mask; //!< Used to mask out objects during traversal /* hit data */ public: float Ng[3]; //!< Unnormalized geometry normal float align2; float u; //!< Barycentric u coordinate of hit float v; //!< Barycentric v coordinate of hit unsigned geomID; //!< geometry ID unsigned primID; //!< primitive ID unsigned instID; //!< instance ID }; /*! Ray structure for packets of 4 rays. */ struct RTCORE_ALIGN(16) RTCRay4 { /* ray data */ public: float orgx[4]; //!< x coordinate of ray origin float orgy[4]; //!< y coordinate of ray origin float orgz[4]; //!< z coordinate of ray origin float dirx[4]; //!< x coordinate of ray direction float diry[4]; //!< y coordinate of ray direction float dirz[4]; //!< z coordinate of ray direction float tnear[4]; //!< Start of ray segment float tfar[4]; //!< End of ray segment (set to hit distance) float time[4]; //!< Time of this ray for motion blur unsigned mask[4]; //!< Used to mask out objects during traversal /* hit data */ public: float Ngx[4]; //!< x coordinate of geometry normal float Ngy[4]; //!< y coordinate of geometry normal float Ngz[4]; //!< z coordinate of geometry normal float u[4]; //!< Barycentric u coordinate of hit float v[4]; //!< Barycentric v coordinate of hit unsigned geomID[4]; //!< geometry ID unsigned primID[4]; //!< primitive ID unsigned instID[4]; //!< instance ID }; /*! Ray structure for packets of 8 rays. */ struct RTCORE_ALIGN(32) RTCRay8 { /* ray data */ public: float orgx[8]; //!< x coordinate of ray origin float orgy[8]; //!< y coordinate of ray origin float orgz[8]; //!< z coordinate of ray origin float dirx[8]; //!< x coordinate of ray direction float diry[8]; //!< y coordinate of ray direction float dirz[8]; //!< z coordinate of ray direction float tnear[8]; //!< Start of ray segment float tfar[8]; //!< End of ray segment (set to hit distance) float time[8]; //!< Time of this ray for motion blur unsigned mask[8]; //!< Used to mask out objects during traversal /* hit data */ public: float Ngx[8]; //!< x coordinate of geometry normal float Ngy[8]; //!< y coordinate of geometry normal float Ngz[8]; //!< z coordinate of geometry normal float u[8]; //!< Barycentric u coordinate of hit float v[8]; //!< Barycentric v coordinate of hit unsigned geomID[8]; //!< geometry ID unsigned primID[8]; //!< primitive ID unsigned instID[8]; //!< instance ID }; /*! \brief Ray structure for packets of 16 rays. */ struct RTCORE_ALIGN(64) RTCRay16 { /* ray data */ public: float orgx[16]; //!< x coordinate of ray origin float orgy[16]; //!< y coordinate of ray origin float orgz[16]; //!< z coordinate of ray origin float dirx[16]; //!< x coordinate of ray direction float diry[16]; //!< y coordinate of ray direction float dirz[16]; //!< z coordinate of ray direction float tnear[16]; //!< Start of ray segment float tfar[16]; //!< End of ray segment (set to hit distance) float time[16]; //!< Time of this ray for motion blur unsigned mask[16]; //!< Used to mask out objects during traversal /* hit data */ public: float Ngx[16]; //!< x coordinate of geometry normal float Ngy[16]; //!< y coordinate of geometry normal float Ngz[16]; //!< z coordinate of geometry normal float u[16]; //!< Barycentric u coordinate of hit float v[16]; //!< Barycentric v coordinate of hit unsigned geomID[16]; //!< geometry ID unsigned primID[16]; //!< primitive ID unsigned instID[16]; //!< instance ID }; /*! \brief Ray structure template for packets of N rays in SOA layout. */ struct RTCRaySOA { /* ray data */ public: float* orgx; //!< x coordinate of ray origin float* orgy; //!< y coordinate of ray origin float* orgz; //!< z coordinate of ray origin float* dirx; //!< x coordinate of ray direction float* diry; //!< y coordinate of ray direction float* dirz; //!< z coordinate of ray direction float* tnear; //!< Start of ray segment (optional) float* tfar; //!< End of ray segment (set to hit distance) float* time; //!< Time of this ray for motion blur (optional) unsigned* mask; //!< Used to mask out objects during traversal (optional) /* hit data */ public: float* Ngx; //!< x coordinate of geometry normal (optional) float* Ngy; //!< y coordinate of geometry normal (optional) float* Ngz; //!< z coordinate of geometry normal (optional) float* u; //!< Barycentric u coordinate of hit float* v; //!< Barycentric v coordinate of hit unsigned* geomID; //!< geometry ID unsigned* primID; //!< primitive ID unsigned* instID; //!< instance ID (optional) }; /*! @} */ #endif