diff options
Diffstat (limited to 'intern/cycles/kernel/bvh/bvh_embree.h')
| -rw-r--r-- | intern/cycles/kernel/bvh/bvh_embree.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/intern/cycles/kernel/bvh/bvh_embree.h b/intern/cycles/kernel/bvh/bvh_embree.h index 34a099ebb4d..db6a1e3ac08 100644 --- a/intern/cycles/kernel/bvh/bvh_embree.h +++ b/intern/cycles/kernel/bvh/bvh_embree.h @@ -123,4 +123,125 @@ ccl_device_inline void kernel_embree_convert_local_hit(KernelGlobals *kg, const isect->type = kernel_tex_fetch(__prim_type, isect->prim); } +ccl_device_inline bool embree_scene_intersect(KernelGlobals *kg, + const Ray *ray, + const uint visibility, + Intersection *isect) +{ + kernel_assert(kernel_data.bvh.scene != NULL); + isect->t = ray->t; + CCLIntersectContext ctx(kg, CCLIntersectContext::RAY_REGULAR); + IntersectContext rtc_ctx(&ctx); + RTCRayHit ray_hit; + kernel_embree_setup_rayhit(*ray, ray_hit, visibility); + rtcIntersect1(kernel_data.bvh.scene, &rtc_ctx.context, &ray_hit); + if(ray_hit.hit.geomID != RTC_INVALID_GEOMETRY_ID && ray_hit.hit.primID != RTC_INVALID_GEOMETRY_ID) { + kernel_embree_convert_hit(kg, &ray_hit.ray, &ray_hit.hit, isect); + return true; + } + return false; +} + +#ifdef __BVH_LOCAL__ +ccl_device_inline bool embree_scene_intersect_local( + KernelGlobals *kg, + const Ray ray, + LocalIntersection *local_isect, + int local_object, + uint *lcg_state, + int max_hits) +{ + kernel_assert(kernel_data.bvh.scene != NULL); + CCLIntersectContext ctx(kg, CCLIntersectContext::RAY_SSS); + ctx.lcg_state = lcg_state; + ctx.max_hits = max_hits; + ctx.ss_isect = local_isect; + local_isect->num_hits = 0; + ctx.sss_object_id = local_object; + IntersectContext rtc_ctx(&ctx); + RTCRay rtc_ray; + kernel_embree_setup_ray(ray, rtc_ray, PATH_RAY_ALL_VISIBILITY); + /* Get the Embree scene for this intersection. */ + RTCGeometry geom = rtcGetGeometry(kernel_data.bvh.scene, local_object * 2); + if(geom) { + float3 P = ray.P; + float3 dir = ray.D; + float3 idir = ray.D; + const int object_flag = kernel_tex_fetch(__object_flag, local_object); + if(!(object_flag & SD_OBJECT_TRANSFORM_APPLIED)) { + Transform ob_itfm; + rtc_ray.tfar = bvh_instance_motion_push(kg, + local_object, + &ray, + &P, + &dir, + &idir, + ray.t, + &ob_itfm); + /* bvh_instance_motion_push() returns the inverse transform but + * it's not needed here. */ + (void) ob_itfm; + + rtc_ray.org_x = P.x; + rtc_ray.org_y = P.y; + rtc_ray.org_z = P.z; + rtc_ray.dir_x = dir.x; + rtc_ray.dir_y = dir.y; + rtc_ray.dir_z = dir.z; + } + RTCScene scene = (RTCScene)rtcGetGeometryUserData(geom); + if(scene) { + rtcOccluded1(scene, &rtc_ctx.context, &rtc_ray); + } + } + return local_isect->num_hits > 0; +} +#endif /* __BVH_LOCAL__ */ + +#ifdef __SHADOW_RECORD_ALL__ +ccl_device_inline bool embree_scene_intersect_shadow_all( + KernelGlobals *kg, + const Ray *ray, + Intersection *isect, + uint max_hits, + uint *num_hits) +{ + kernel_assert(kernel_data.bvh.scene != NULL); + CCLIntersectContext ctx(kg, CCLIntersectContext::RAY_SHADOW_ALL); + ctx.isect_s = isect; + ctx.max_hits = max_hits; + ctx.num_hits = 0; + IntersectContext rtc_ctx(&ctx); + RTCRay rtc_ray; + kernel_embree_setup_ray(*ray, rtc_ray, PATH_RAY_SHADOW); + rtcOccluded1(kernel_data.bvh.scene, &rtc_ctx.context, &rtc_ray); + if(ctx.num_hits > max_hits) { + return true; + } + *num_hits = ctx.num_hits; + return rtc_ray.tfar == -INFINITY; +} +#endif /* __SHADOW_RECORD_ALL__ */ + +#ifdef __VOLUME_RECORD_ALL__ +ccl_device_inline uint embree_scene_intersect_volume_all( + KernelGlobals *kg, + const Ray *ray, + Intersection *isect, + const uint max_hits, + const uint visibility) +{ + kernel_assert(kernel_data.bvh.scene != NULL); + CCLIntersectContext ctx(kg, CCLIntersectContext::RAY_VOLUME_ALL); + ctx.isect_s = isect; + ctx.max_hits = max_hits; + ctx.num_hits = 0; + IntersectContext rtc_ctx(&ctx); + RTCRay rtc_ray; + kernel_embree_setup_ray(*ray, rtc_ray, visibility); + rtcOccluded1(kernel_data.bvh.scene, &rtc_ctx.context, &rtc_ray); + return rtc_ray.tfar == -INFINITY; +} +#endif /* __VOLUME_RECORD_ALL__ */ + CCL_NAMESPACE_END |