Render font help!

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2 comments, last by stefu 20 years, 10 months ago
I can''t get my font rendering transparently I have antialised font in greyscale image, 1 byte for each pixel, where value 255 is full visible and 0 is not visible. What is the right format to use in glTexImage2D? GL_LUMINANCE? GL_ALPHA? And what are teh blend functions to use? For example glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) reners just black rects. Or do I need to have RGBA texture, where R=G=B=255 and A varies?
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quote:Original post by stefu
Or do I need to have RGBA texture, where R=G=B=255 and A varies?


This works with glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
But I''d want same effect with only aplha channel (without RGB) and so that I can change font color with glColor().

But if not possible thisa is ok then

Thanks.
Have you tryed :

glDisable(GL_TEXTURE_2D);glColor();glEnable(GL_TEXTURE_2D); 


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Leyder Dylan (dylan.leyder@slug-production.be.tf
http://www.slug-production.be.tf/
========================Leyder Dylan (dylan.leyder@slug-production.be.tf http://users.skynet.be/fa550206/Slug-Production/Index.htm/
Well, try GL_ALPHA and set GL_RED_BIAS, GL_GREEN_BIAS and GL_BLUE_BIAS to the desired values (msdn.microsoft.com)

PM

Times change...

Excuse my poor english!
PM Times change...Excuse my poor english!

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