diff options
Diffstat (limited to 'intern/cycles/kernel/svm/svm_light_path.h')
| -rw-r--r-- | intern/cycles/kernel/svm/svm_light_path.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/intern/cycles/kernel/svm/svm_light_path.h b/intern/cycles/kernel/svm/svm_light_path.h new file mode 100644 index 00000000000..a4a461f9590 --- /dev/null +++ b/intern/cycles/kernel/svm/svm_light_path.h @@ -0,0 +1,41 @@ +/* + * Copyright 2011, Blender Foundation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +CCL_NAMESPACE_BEGIN + +/* Light Path Node */ + +__device void svm_node_light_path(ShaderData *sd, float *stack, uint type, uint out_offset, int path_flag) +{ + float info = 0.0f; + + switch(type) { + case NODE_LP_camera: info = (path_flag & PATH_RAY_CAMERA)? 1.0f: 0.0f; break; + case NODE_LP_shadow: info = (path_flag & PATH_RAY_SHADOW)? 1.0f: 0.0f; break; + case NODE_LP_diffuse: info = (path_flag & PATH_RAY_DIFFUSE)? 1.0f: 0.0f; break; + case NODE_LP_glossy: info = (path_flag & PATH_RAY_GLOSSY)? 1.0f: 0.0f; break; + case NODE_LP_reflection: info = (path_flag & PATH_RAY_REFLECT)? 1.0f: 0.0f; break; + case NODE_LP_transmission: info = (path_flag & PATH_RAY_TRANSMIT)? 1.0f: 0.0f; break; + case NODE_LP_backfacing: info = (sd->flag & SD_BACKFACING)? 1.0f: 0.0f; break; + } + + stack_store_float(stack, out_offset, info? 1.0f: 0.0f); +} + +CCL_NAMESPACE_END + |