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/*
* 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 "stdcycles.h"
shader node_vertex_color(string bump_offset = "center",
string layer_name = "",
output color Color = 0.0,
output float Alpha = 0.0)
{
float vertex_color[4];
string vertex_color_layer;
if (layer_name == "") {
vertex_color_layer = "geom:vertex_color";
}
else {
vertex_color_layer = layer_name;
}
if (getattribute(vertex_color_layer, vertex_color)) {
Color = color(vertex_color[0], vertex_color[1], vertex_color[2]);
Alpha = vertex_color[3];
if (bump_offset == "dx") {
Color += Dx(Color);
Alpha += Dx(Alpha);
}
else if (bump_offset == "dy") {
Color += Dy(Color);
Alpha += Dy(Alpha);
}
}
else {
warning("%s", "Invalid attribute.");
}
}
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