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sprite colorkeying in OpenGL

Started by wazoo69, Jul 10 2001 04:01 PM

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#1 wazoo69 Members - Reputation: 157

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Posted 10 July 2001 - 04:01 PM

Hey gang... I''ve got my textures loading and running just fine in OpenGL..now I want to do some simple animation (ie. changing the texture coords on the fly to map a different "cell" of the texture data onto my quads) anyways, could anyone give me some advice on handling colorkeying?? I don''t want to be restricted to a black background for every game I make..

I know it has something to do with alphabit testing doesn''t it? thanks in advance, Erik

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#2 Obelix Members - Reputation: 122

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Posted 10 July 2001 - 04:17 PM

It is called alpha testing. Here is a demonstration from ATI http://www.ati.com/na/pages/resource_centre/dev_rel/sdk/rage128sdk/OpenGL/Samples/Rage128AlphaTest.html

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