diff options
Diffstat (limited to 'intern/cycles/kernel/integrator/intersect_volume_stack.h')
| -rw-r--r-- | intern/cycles/kernel/integrator/intersect_volume_stack.h | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/intern/cycles/kernel/integrator/intersect_volume_stack.h b/intern/cycles/kernel/integrator/intersect_volume_stack.h index 49ef01dc870..9ba4a0a3964 100644 --- a/intern/cycles/kernel/integrator/intersect_volume_stack.h +++ b/intern/cycles/kernel/integrator/intersect_volume_stack.h @@ -24,7 +24,8 @@ ccl_device void integrator_volume_stack_update_for_subsurface(KernelGlobals kg, Ray volume_ray ccl_optional_struct_init; volume_ray.P = from_P; - volume_ray.D = normalize_len(to_P - from_P, &volume_ray.t); + volume_ray.D = normalize_len(to_P - from_P, &volume_ray.tmax); + volume_ray.tmin = 0.0f; volume_ray.self.object = INTEGRATOR_STATE(state, isect, object); volume_ray.self.prim = INTEGRATOR_STATE(state, isect, prim); volume_ray.self.light_object = OBJECT_NONE; @@ -58,12 +59,9 @@ ccl_device void integrator_volume_stack_update_for_subsurface(KernelGlobals kg, volume_stack_enter_exit(kg, state, stack_sd); /* Move ray forward. */ - volume_ray.P = stack_sd->P; + volume_ray.tmin = intersection_t_offset(isect.t); volume_ray.self.object = isect.object; volume_ray.self.prim = isect.prim; - if (volume_ray.t != FLT_MAX) { - volume_ray.D = normalize_len(to_P - volume_ray.P, &volume_ray.t); - } ++step; } #endif @@ -82,7 +80,8 @@ ccl_device void integrator_volume_stack_init(KernelGlobals kg, IntegratorState s /* Trace ray in random direction. Any direction works, Z up is a guess to get the * fewest hits. */ volume_ray.D = make_float3(0.0f, 0.0f, 1.0f); - volume_ray.t = FLT_MAX; + volume_ray.tmin = 0.0f; + volume_ray.tmax = FLT_MAX; volume_ray.self.object = OBJECT_NONE; volume_ray.self.prim = PRIM_NONE; volume_ray.self.light_object = OBJECT_NONE; @@ -199,7 +198,7 @@ ccl_device void integrator_volume_stack_init(KernelGlobals kg, IntegratorState s } /* Move ray forward. */ - volume_ray.P = stack_sd->P; + volume_ray.tmin = intersection_t_offset(isect.t); volume_ray.self.object = isect.object; volume_ray.self.prim = isect.prim; ++step; @@ -222,7 +221,9 @@ ccl_device void integrator_intersect_volume_stack(KernelGlobals kg, IntegratorSt } else { /* Volume stack init for camera rays, continue with intersection of camera ray. */ - INTEGRATOR_PATH_NEXT(DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK, + integrator_path_next(kg, + state, + DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK, DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST); } } |