forked from bartvdbraak/blender
b9ce231060
More information in this post: http://code.blender.org/ Thanks to all contributes for giving their permission!
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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CCL_NAMESPACE_BEGIN
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/* Conversion Nodes */
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__device void svm_node_convert(ShaderData *sd, float *stack, uint type, uint from, uint to)
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{
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switch(type) {
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case NODE_CONVERT_FI: {
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float f = stack_load_float(stack, from);
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stack_store_int(stack, to, float_to_int(f));
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break;
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}
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case NODE_CONVERT_FV: {
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float f = stack_load_float(stack, from);
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stack_store_float3(stack, to, make_float3(f, f, f));
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break;
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}
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case NODE_CONVERT_CF: {
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float3 f = stack_load_float3(stack, from);
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float g = linear_rgb_to_gray(f);
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stack_store_float(stack, to, g);
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break;
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}
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case NODE_CONVERT_CI: {
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float3 f = stack_load_float3(stack, from);
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int i = (int)linear_rgb_to_gray(f);
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stack_store_int(stack, to, i);
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break;
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}
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case NODE_CONVERT_VF: {
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float3 f = stack_load_float3(stack, from);
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float g = (f.x + f.y + f.z)*(1.0f/3.0f);
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stack_store_float(stack, to, g);
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break;
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}
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case NODE_CONVERT_VI: {
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float3 f = stack_load_float3(stack, from);
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int i = (int)((f.x + f.y + f.z)*(1.0f/3.0f));
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stack_store_int(stack, to, i);
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break;
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}
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case NODE_CONVERT_IF: {
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float f = (float)stack_load_int(stack, from);
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stack_store_float(stack, to, f);
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break;
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}
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case NODE_CONVERT_IV: {
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float f = (float)stack_load_int(stack, from);
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stack_store_float3(stack, to, make_float3(f, f, f));
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break;
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}
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}
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}
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CCL_NAMESPACE_END
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