HI Ankush! I am not too sure if I understand your question fully however from my experience with Solidworks you can insert material type and a colour or finish to a part and depending on your graphics card it can be displayed without doing a rendering of the part. When inserting a part appearance you can select whether the appearance is for the part as a whole or just the surface. use the appearance, scene and decal tab to pull out the various colours and appearances, it is denoted by a yellow, green, blue and red ball (see attachment). I hope this info will assist you, if not hit me on my email and we can make use of snapshots towards answering your question. Cheers!