Hi Brian,
> To get the "real" effect you really need displacment mapping
> (for closeups) and for that which also adds to file size.
For most renderers, a displacement map is only applied during render time to create more detailed objects just in memory. It should not normally increase the size of the file on just on disk (but I suppose this is possible if your software happens to work that way...)
But anyway, I'd think that it would be a pretty unusual shot to be really close up to a rope... If you really did want to do a closeup on one rope, then it would probably work ok to do a detailed model of just that piece and then do texture mapping for all the other ones.
- Michael
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