diff options
Diffstat (limited to 'intern/cycles/kernel/bvh/shadow_all.h')
| -rw-r--r-- | intern/cycles/kernel/bvh/shadow_all.h | 52 |
1 files changed, 16 insertions, 36 deletions
diff --git a/intern/cycles/kernel/bvh/shadow_all.h b/intern/cycles/kernel/bvh/shadow_all.h index e86fe867eac..f37af2a1e65 100644 --- a/intern/cycles/kernel/bvh/shadow_all.h +++ b/intern/cycles/kernel/bvh/shadow_all.h @@ -49,26 +49,15 @@ ccl_device_inline float3 P = ray->P; float3 dir = bvh_clamp_direction(ray->D); float3 idir = bvh_inverse_direction(dir); + float tmin = ray->tmin; int object = OBJECT_NONE; uint num_hits = 0; -#if BVH_FEATURE(BVH_MOTION) - Transform ob_itfm; -#endif - /* Max distance in world space. May be dynamically reduced when max number of * recorded hits is exceeded and we no longer need to find hits beyond the max * distance found. */ - float t_max_world = ray->t; - - /* Current maximum distance to the intersection. - * Is calculated as a ray length, transformed to an object space when entering - * instance node. */ - float t_max_current = ray->t; - - /* Conversion from world to local space for the current instance if any, 1.0 - * otherwise. */ - float t_world_to_instance = 1.0f; + const float tmax = ray->tmax; + float tmax_hits = tmax; *r_num_recorded_hits = 0; *r_throughput = 1.0f; @@ -88,7 +77,8 @@ ccl_device_inline dir, #endif idir, - t_max_current, + tmin, + tmax, node_addr, visibility, dist); @@ -157,7 +147,7 @@ ccl_device_inline switch (type & PRIMITIVE_ALL) { case PRIMITIVE_TRIANGLE: { hit = triangle_intersect( - kg, &isect, P, dir, t_max_current, visibility, prim_object, prim, prim_addr); + kg, &isect, P, dir, tmin, tmax, visibility, prim_object, prim, prim_addr); break; } #if BVH_FEATURE(BVH_MOTION) @@ -166,7 +156,8 @@ ccl_device_inline &isect, P, dir, - t_max_current, + tmin, + tmax, ray->time, visibility, prim_object, @@ -190,7 +181,7 @@ ccl_device_inline const int curve_type = kernel_data_fetch(prim_type, prim_addr); hit = curve_intersect( - kg, &isect, P, dir, t_max_current, prim_object, prim, ray->time, curve_type); + kg, &isect, P, dir, tmin, tmax, prim_object, prim, ray->time, curve_type); break; } @@ -208,7 +199,7 @@ ccl_device_inline const int point_type = kernel_data_fetch(prim_type, prim_addr); hit = point_intersect( - kg, &isect, P, dir, t_max_current, prim_object, prim, ray->time, point_type); + kg, &isect, P, dir, tmin, tmax, prim_object, prim, ray->time, point_type); break; } #endif /* BVH_FEATURE(BVH_POINTCLOUD) */ @@ -220,9 +211,6 @@ ccl_device_inline /* shadow ray early termination */ if (hit) { - /* Convert intersection distance to world space. */ - isect.t /= t_world_to_instance; - /* detect if this surface has a shader with transparent shadows */ /* todo: optimize so primitive visibility flag indicates if * the primitive has a transparent shadow shader? */ @@ -254,7 +242,7 @@ ccl_device_inline if (record_intersection) { /* Test if we need to record this transparent intersection. */ const uint max_record_hits = min(max_hits, INTEGRATOR_SHADOW_ISECT_SIZE); - if (*r_num_recorded_hits < max_record_hits || isect.t < t_max_world) { + if (*r_num_recorded_hits < max_record_hits || isect.t < tmax_hits) { /* If maximum number of hits was reached, replace the intersection with the * highest distance. We want to find the N closest intersections. */ const uint num_recorded_hits = min(*r_num_recorded_hits, max_record_hits); @@ -276,7 +264,7 @@ ccl_device_inline } /* Limit the ray distance and stop counting hits beyond this. */ - t_max_world = max(isect.t, max_t); + tmax_hits = max(isect.t, max_t); } integrator_state_write_shadow_isect(state, &isect, isect_index); @@ -294,15 +282,11 @@ ccl_device_inline object = kernel_data_fetch(prim_object, -prim_addr - 1); #if BVH_FEATURE(BVH_MOTION) - t_world_to_instance = bvh_instance_motion_push( - kg, object, ray, &P, &dir, &idir, &ob_itfm); + bvh_instance_motion_push(kg, object, ray, &P, &dir, &idir); #else - t_world_to_instance = bvh_instance_push(kg, object, ray, &P, &dir, &idir); + bvh_instance_push(kg, object, ray, &P, &dir, &idir); #endif - /* Convert intersection to object space. */ - t_max_current *= t_world_to_instance; - ++stack_ptr; kernel_assert(stack_ptr < BVH_STACK_SIZE); traversal_stack[stack_ptr] = ENTRYPOINT_SENTINEL; @@ -317,16 +301,12 @@ ccl_device_inline /* Instance pop. */ #if BVH_FEATURE(BVH_MOTION) - bvh_instance_motion_pop(kg, object, ray, &P, &dir, &idir, FLT_MAX, &ob_itfm); + bvh_instance_motion_pop(kg, object, ray, &P, &dir, &idir); #else - bvh_instance_pop(kg, object, ray, &P, &dir, &idir, FLT_MAX); + bvh_instance_pop(kg, object, ray, &P, &dir, &idir); #endif - /* Restore world space ray length. */ - t_max_current = ray->t; - object = OBJECT_NONE; - t_world_to_instance = 1.0f; node_addr = traversal_stack[stack_ptr]; --stack_ptr; } |