diff options
Diffstat (limited to 'intern/cycles/kernel/svm/svm_convert.h')
| -rw-r--r-- | intern/cycles/kernel/svm/svm_convert.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/intern/cycles/kernel/svm/svm_convert.h b/intern/cycles/kernel/svm/svm_convert.h new file mode 100644 index 00000000000..14925569bfb --- /dev/null +++ b/intern/cycles/kernel/svm/svm_convert.h @@ -0,0 +1,48 @@ +/* + * 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 + +/* Conversion Nodes */ + +__device void svm_node_convert(ShaderData *sd, float *stack, uint type, uint from, uint to) +{ + switch(type) { + case NODE_CONVERT_FV: { + float f = stack_load_float(stack, from); + stack_store_float3(stack, to, make_float3(f, f, f)); + break; + } + case NODE_CONVERT_CF: { + float3 f = stack_load_float3(stack, from); + float g = f.x*0.2126f + f.y*0.7152f + f.z*0.0722f; + stack_store_float(stack, to, g); + break; + } + case NODE_CONVERT_VF: { + float3 f = stack_load_float3(stack, from); + float g = (f.x + f.y + f.z)*(1.0f/3.0f); + stack_store_float(stack, to, g); + break; + } + + } +} + +CCL_NAMESPACE_END + |