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Boresight
06-22-2001, 02:26 PM
What is the diference between GL_ILUMINANCE and GL_INTENSITY in glTexImage* function?

zed
06-22-2001, 04:37 PM
one difference is with modulating
GL_LUMINANCE C=CfLt A=Af
GL_INTENSITY C=CfIt A=AfAt
thus the alpha calculations are different (colour is the same though)

Boresight
06-25-2001, 05:23 AM
OK, I undestand that, but what is Lt and It in that equation.

What is LUMINANCE and what is INTENSITY?

[This message has been edited by Boresight (edited 06-25-2001).]

Serge K
06-25-2001, 04:49 PM
Texture Environments and Texture Functions (http://trant.sgi.com/opengl/docs/Specs/glspec1.1/node88.html)