forked from bartvdbraak/blender
e12c08e8d1
Apply clang format as proposed in T53211. For details on usage and instructions for migrating branches without conflicts, see: https://wiki.blender.org/wiki/Tools/ClangFormat
144 lines
4.5 KiB
C++
144 lines
4.5 KiB
C++
/*
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* Copyright 2018, Blender Foundation.
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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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#include <embree3/rtcore_ray.h>
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#include <embree3/rtcore_scene.h>
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#include "kernel/kernel_compat_cpu.h"
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#include "kernel/split/kernel_split_data_types.h"
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#include "kernel/kernel_globals.h"
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#include "util/util_vector.h"
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CCL_NAMESPACE_BEGIN
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struct CCLIntersectContext {
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typedef enum {
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RAY_REGULAR = 0,
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RAY_SHADOW_ALL = 1,
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RAY_SSS = 2,
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RAY_VOLUME_ALL = 3,
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} RayType;
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KernelGlobals *kg;
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RayType type;
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/* for shadow rays */
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Intersection *isect_s;
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int max_hits;
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int num_hits;
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/* for SSS Rays: */
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LocalIntersection *ss_isect;
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int sss_object_id;
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uint *lcg_state;
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CCLIntersectContext(KernelGlobals *kg_, RayType type_)
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{
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kg = kg_;
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type = type_;
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max_hits = 1;
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num_hits = 0;
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isect_s = NULL;
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ss_isect = NULL;
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sss_object_id = -1;
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lcg_state = NULL;
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}
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};
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class IntersectContext {
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public:
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IntersectContext(CCLIntersectContext *ctx)
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{
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rtcInitIntersectContext(&context);
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userRayExt = ctx;
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}
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RTCIntersectContext context;
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CCLIntersectContext *userRayExt;
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};
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ccl_device_inline void kernel_embree_setup_ray(const Ray &ray,
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RTCRay &rtc_ray,
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const uint visibility)
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{
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rtc_ray.org_x = ray.P.x;
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rtc_ray.org_y = ray.P.y;
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rtc_ray.org_z = ray.P.z;
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rtc_ray.dir_x = ray.D.x;
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rtc_ray.dir_y = ray.D.y;
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rtc_ray.dir_z = ray.D.z;
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rtc_ray.tnear = 0.0f;
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rtc_ray.tfar = ray.t;
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rtc_ray.time = ray.time;
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rtc_ray.mask = visibility;
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}
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ccl_device_inline void kernel_embree_setup_rayhit(const Ray &ray,
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RTCRayHit &rayhit,
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const uint visibility)
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{
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kernel_embree_setup_ray(ray, rayhit.ray, visibility);
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rayhit.hit.geomID = RTC_INVALID_GEOMETRY_ID;
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rayhit.hit.primID = RTC_INVALID_GEOMETRY_ID;
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}
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ccl_device_inline void kernel_embree_convert_hit(KernelGlobals *kg,
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const RTCRay *ray,
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const RTCHit *hit,
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Intersection *isect)
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{
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bool is_hair = hit->geomID & 1;
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isect->u = is_hair ? hit->u : 1.0f - hit->v - hit->u;
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isect->v = is_hair ? hit->v : hit->u;
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isect->t = ray->tfar;
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isect->Ng = make_float3(hit->Ng_x, hit->Ng_y, hit->Ng_z);
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if (hit->instID[0] != RTC_INVALID_GEOMETRY_ID) {
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RTCScene inst_scene = (RTCScene)rtcGetGeometryUserData(
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rtcGetGeometry(kernel_data.bvh.scene, hit->instID[0]));
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isect->prim = hit->primID +
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(intptr_t)rtcGetGeometryUserData(rtcGetGeometry(inst_scene, hit->geomID)) +
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kernel_tex_fetch(__object_node, hit->instID[0] / 2);
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isect->object = hit->instID[0] / 2;
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}
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else {
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isect->prim = hit->primID + (intptr_t)rtcGetGeometryUserData(
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rtcGetGeometry(kernel_data.bvh.scene, hit->geomID));
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isect->object = OBJECT_NONE;
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}
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isect->type = kernel_tex_fetch(__prim_type, isect->prim);
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}
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ccl_device_inline void kernel_embree_convert_local_hit(KernelGlobals *kg,
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const RTCRay *ray,
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const RTCHit *hit,
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Intersection *isect,
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int local_object_id)
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{
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isect->u = 1.0f - hit->v - hit->u;
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isect->v = hit->u;
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isect->t = ray->tfar;
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isect->Ng = make_float3(hit->Ng_x, hit->Ng_y, hit->Ng_z);
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RTCScene inst_scene = (RTCScene)rtcGetGeometryUserData(
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rtcGetGeometry(kernel_data.bvh.scene, local_object_id * 2));
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isect->prim = hit->primID +
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(intptr_t)rtcGetGeometryUserData(rtcGetGeometry(inst_scene, hit->geomID)) +
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kernel_tex_fetch(__object_node, local_object_id);
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isect->object = local_object_id;
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isect->type = kernel_tex_fetch(__prim_type, isect->prim);
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}
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CCL_NAMESPACE_END
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