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