CompuServe Thread

#Mapping a Smokestack

3 messages in this thread
#49069From: Mitchell WaiteJul 8, 1993 9:00 PM
I am trying to map bumpy white stone material on a tube. I am inside the tube looking down its length. I want the stone to map evenly on the inside surface but instead it seems stretched in a way that doesn't seem natural no matter how I adjust the mapping cylinder. Anyone had this same problem before? I find that the planer map works best but leaves the stones on my right and left stretched weirdly too. Mitch
#49103From: ALAN IGLESIASJul 9, 1993 12:31 AM
Make sure your bitmap has enough "width" to reach all around the tube without distorting, Mitchell. I often "flatten out" the mapping icon in my mind's eye to get a handle on the proper aspect ratio for the bitmap in question. Also, Don't forget that you can change the "size" of your map by adjusting the tiling parameters. Hope this helps, -Alan Iglesias
#49153From: Yost GroupJul 9, 1993 10:48 AM
Why are you using a planar map for a cylindrical object? The map is stretching along the sides because the planar map projects in a straight line through the cylinder. Try a cylindrical map and see what happens. – Jack