diff options
Diffstat (limited to 'intern/cycles/kernel/svm/invert.h')
-rw-r--r-- | intern/cycles/kernel/svm/invert.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/intern/cycles/kernel/svm/invert.h b/intern/cycles/kernel/svm/invert.h new file mode 100644 index 00000000000..5a88e9df2c9 --- /dev/null +++ b/intern/cycles/kernel/svm/invert.h @@ -0,0 +1,43 @@ +/* + * 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. + */ + +#pragma once + +CCL_NAMESPACE_BEGIN + +ccl_device float invert(float color, float factor) +{ + return factor * (1.0f - color) + (1.0f - factor) * color; +} + +ccl_device_noinline void svm_node_invert(ccl_private ShaderData *sd, + ccl_private 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 |