blender/intern/cycles/kernel/svm/svm_brightness.h
Alexander Gavrilov f7bada00a7 Cycles: add constant folding for more color operation nodes.
Invert, brightness & constrast, separate/combine and Mix RGB blend modes
and clamping.
2016-06-19 20:17:28 +02:00

35 lines
1.2 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
ccl_device void svm_node_brightness(ShaderData *sd, float *stack, uint in_color, uint out_color, uint node)
{
uint bright_offset, contrast_offset;
float3 color = stack_load_float3(stack, in_color);
decode_node_uchar4(node, &bright_offset, &contrast_offset, NULL, NULL);
float brightness = stack_load_float(stack, bright_offset);
float contrast = stack_load_float(stack, contrast_offset);
color = svm_brightness_contrast(color, brightness, contrast);
if(stack_valid(out_color))
stack_store_float3(stack, out_color, color);
}
CCL_NAMESPACE_END