// Copyright (c) 2015 - 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

export default `#version 300 es
#define SHADER_NAME column-layer-fragment-shader

precision highp float;

uniform vec3 project_uCameraPosition;
uniform bool extruded;
uniform bool isStroke;

out vec4 fragColor;

in vec4 vColor;
#ifdef FLAT_SHADING
in vec4 position_commonspace;
#endif

void main(void) {
  fragColor = vColor;
#ifdef FLAT_SHADING
  if (extruded && !isStroke && !picking_uActive) {
    vec3 normal = normalize(cross(dFdx(position_commonspace.xyz), dFdy(position_commonspace.xyz)));
    fragColor.rgb = lighting_getLightColor(vColor.rgb, project_uCameraPosition, position_commonspace.xyz, normal);
  }
#endif
  DECKGL_FILTER_COLOR(fragColor, geometry);
}
`;