forked from bartvdbraak/blender
b9ce231060
More information in this post: http://code.blender.org/ Thanks to all contributes for giving their permission!
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/*
|
|
* Copyright 2011-2013 Blender Foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License
|
|
*/
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
__device float invert(float color, float factor)
|
|
{
|
|
return factor*(1.0f - color) + (1.0f - factor) * color;
|
|
}
|
|
|
|
__device void svm_node_invert(ShaderData *sd, float *stack, uint in_fac, uint in_color, uint out_color)
|
|
{
|
|
float factor = stack_load_float(stack, in_fac);
|
|
float3 color = stack_load_float3(stack, in_color);
|
|
|
|
color.x = invert(color.x, factor);
|
|
color.y = invert(color.y, factor);
|
|
color.z = invert(color.z, factor);
|
|
|
|
if (stack_valid(out_color))
|
|
stack_store_float3(stack, out_color, color);
|
|
}
|
|
|
|
CCL_NAMESPACE_END
|
|
|