text: //This file is automatically rebuilt by the Cesium build process.
  /*global define*/
  define(function() {
      'use strict';
      return "uniform vec4 color;\n\
  uniform vec4 rimColor;\n\
  uniform float width;\n\
  czm_material czm_getMaterial(czm_materialInput materialInput)\n\
  {\n\
  czm_material material = czm_getDefaultMaterial(materialInput);\n\
  float d = 1.0 - dot(materialInput.normalEC, normalize(materialInput.positionToEyeEC));\n\
  float s = smoothstep(1.0 - width, 1.0, d);\n\
  material.diffuse = color.rgb;\n\
  material.emission = rimColor.rgb * s;\n\
  material.alpha = mix(color.a, rimColor.a, s);\n\
  return material;\n\
  }\n\
  ";
  });