// fragmentPrefex ="" // prefix ( optional)
// fragmentShader = "" // fragment shader ( optional)
// geometryHints = [ "gridX", "gridY", "grid","depthBuffer","blending" ] ( optional)
// fragmentPrefex ="" // prefix ( optional)
// fragmentShader = "" // fragment shader ( optional)
// geometryHints = [ "gridX", "gridY", "grid","depthBuffer","blending" ] ( optional)