   OpenGL vertex lighting question [renamed]
  Hello,I changed my previous question to this:Given:-OpenGL Standard Lighting-1 enabled point light with ambient=diffuse, no specular-one object-no global ambient lighting1. Render the object as usual2. Render in 2 passes1st: light's diffuse set to zero2nd: enable blending (GL_FUNC_ADD, GL_ONE, GL_ONE)restore light's diffuse colorset light's ambient color to zeroShouldn't the output be the same? In Method 1 diffuse and ambient are added per vertex. Method 2 does it in the frame buffer. Why is the output of Method 2 much brighter than method 1?Thanks a lot.Markus[Edited by - muhkuh on December 2, 2005 6:00:32 AM]
  Are you texturing this object?   