what's the use of the alpha value of a texture [Archive]

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pango

01-14-2004, 10:32 AM

we know when a texture has 4 color components,the last one is alpha,but what's the use of it?which objects will be affected by it?OGL how to deal it in a blend operation?

AdrianD

01-14-2004, 10:50 AM

please ask such questions in the beginner forum.

01-15-2004, 07:45 PM

I would like to know the answer to this question as well. Is there a performance difference between GL_QUAD and GL_TRIANGLES

01-15-2004, 07:50 PM

I somehow managed to post that in the wrong thread... sorry. I have no idea how that happened.