text: //This file is automatically rebuilt by the Cesium build process.
  /*global define*/
  define(function() {
      'use strict';
      return "/**\n\
   * DOC_TBA\n\
   *\n\
   * @name czm_columbusViewMorph\n\
   * @glslFunction\n\
   */\n\
  vec4 czm_columbusViewMorph(vec4 position2D, vec4 position3D, float time)\n\
  {\n\
      // Just linear for now.\n\
      vec3 p = mix(position2D.xyz, position3D.xyz, time);\n\
      return vec4(p, 1.0);\n\
  }\n\
  ";
  });