class UniformsUtils {

 static Map<String, Uniform> merge( List<Map<String, Uniform>> uniformsLst) {

   var merged = {};

   uniformsLst.forEach((Map<String, Uniform> uniforms) {
     uniforms.forEach((k, uniform) {
       merged[k] = uniform.clone();
     });
   });

   return merged;

 }

 static clone( Map<String, Uniform> uniforms ) {
   var result = {};
   uniforms.forEach((k, uniform) {
     result[k] = uniform.clone();
   });
   return result;
 }

}