diff options
Diffstat (limited to 'intern/cycles/kernel/shaders/node_layer_weight.osl')
-rw-r--r-- | intern/cycles/kernel/shaders/node_layer_weight.osl | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/intern/cycles/kernel/shaders/node_layer_weight.osl b/intern/cycles/kernel/shaders/node_layer_weight.osl deleted file mode 100644 index 1662be2cad1..00000000000 --- a/intern/cycles/kernel/shaders/node_layer_weight.osl +++ /dev/null @@ -1,44 +0,0 @@ -/* - * 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. - */ - -#include "node_fresnel.h" -#include "stdcycles.h" - -shader node_layer_weight(float Blend = 0.5, - normal Normal = N, - output float Fresnel = 0.0, - output float Facing = 0.0) -{ - float blend = Blend; - float cosi = dot(I, Normal); - - /* Fresnel */ - float eta = max(1.0 - Blend, 1e-5); - eta = backfacing() ? eta : 1.0 / eta; - Fresnel = fresnel_dielectric_cos(cosi, eta); - - /* Facing */ - Facing = fabs(cosi); - - if (blend != 0.5) { - blend = clamp(blend, 0.0, 1.0 - 1e-5); - blend = (blend < 0.5) ? 2.0 * blend : 0.5 / (1.0 - blend); - - Facing = pow(Facing, blend); - } - - Facing = 1.0 - Facing; -} |