anchor.diff:  const String uLightCount = "uLightCount";
   const String uLightTypes = "uLightTypes";
   
  -Map<String, ShaderVarDesc> _VarsDb = {
  +final Map<String, ShaderVarDesc> _VarsDb = {
     eArray: new ShaderVarDesc("index", ""),
   
     //
  
positive.code:   uFogFar: new ShaderVarDesc("float", ""),
    uPointSize: new ShaderVarDesc("float", ""),
    uCanvasSize: new ShaderVarDesc("vec2", ""),
    uColor: new ShaderVarDesc("vec3", ""),
    uColorAlpha: new ShaderVarDesc("vec4", ""),
    uColorAlpha2: new ShaderVarDesc("vec4", ""),
    uEyePosition: new ShaderVarDesc("vec3", ""),
  
negative.code: const String uColor = "uColor";
  const String uColorAlpha2 = "uColorAlpha2";
  const String uColorAlpha = "uColorAlpha";
  const String uColorEmissive = "uColorEmissive";
  const String uColorDiffuse = "uColorDiffuse";
  const String uColorSpecular = "uColorSpecular";
  const String uCameraNear = "uCameraNear";
  const String uCameraFar = "uCameraFar";
  const String uCanvasSize = "uCanvasSize";
  