DSDSWeb/static/js/Cesium-1.53/Source/Shaders/Builtin/Constants/infinity.glsl

/**
 * DOC_TBA
 *
 * @name czm_infinity
 * @glslConstant
 */
const float czm_infinity = 5906376272000.0;  // Distance from the Sun to Pluto in meters.  TODO: What is best given lowp, mediump, and highp?