blender/intern/cycles/kernel/shaders/node_uv_map.osl

/*
 * 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 "stdosl.h"

shader node_uv_map(int from_dupli = 0,
                   string attribute = "",
                   string bump_offset = "center",
                   output point UV = point(0.0, 0.0, 0.0))
{
  if (from_dupli) {
    getattribute("geom:dupli_uv", UV);
  }
  else {
    if (attribute == "")
      getattribute("geom:uv", UV);
    else
      getattribute(attribute, UV);
  }

  if (bump_offset == "dx") {
    if (!from_dupli) {
      UV += Dx(UV);
    }
  }
  else if (bump_offset == "dy") {
    if (!from_dupli) {
      UV += Dy(UV);
    }
  }
}