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Asura
04-07-2006, 10:18 AM
Hi, can anybody tell me how to set the bidirectional normal vector for vertices please?

Thanks in advance!

04-07-2006, 06:12 PM
glBidirectionalvector3f

Asura
04-08-2006, 02:06 AM
Why I didn't find the command glBidirectionalvector3f??? And there is no introduction to this in the red book either

jide
04-08-2006, 03:58 AM
http://oss.sgi.com/projects/ogl-sample/registry/EXT/coordinate_frame.txt

This extension seems not to be implemented. So you have to do it yourself.