vertexAttrib4fv method
Implementation
void vertexAttrib4fv(int index, List<double> values){
startCheck('vertexAttrib4fv');
var arrayPointer = floatListToArrayPointer(values);
gl.glVertexAttrib4fv(index, arrayPointer);
checkError('vertexAttrib4fv');
calloc.free(arrayPointer);
}