seachnasaigh, thx for the help! i didnt know it's simply called as 'procedural textures' instead of '3d textures' . much better if we can replace those polka dots with custom made pattern.

Morkonan, i did check the global coordinates earlier before posting this thread but no difference at all. so i really dont know what is it for. in blender however, simply checking the 'global coordinates' or 'orco' will give procedural effects , no stretching whatsover