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Cydriic

Alpha Zone on Targa Texture just won't show alpha

5 posts in this topic

Hi Everyone, I found a targa loader that works great and implemented it in my code.

But for some reason, the alpha region of my texture , just won't be alpha when I load the Texture in my code.

If I make a texture that is a full purple colored rectangle, and carve out the central part with an alpha zone, in-game the quad is all full purple, instead of having the central part being transparent.

I tried the following code too, and it doesn't work, I don't understand
//NPC
glEnable(GL_BLEND); // Enable Blending

NPC00->Draw();

glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // Set The Blending To A Nice 50/50 Mode
glDisable(GL_BLEND); // Disable Blending


Draw Function, basically draws a Quad and applies the texture to it.


Can anybody help me understand whats missing I'm just trying to get textures with alpha to work, I usually work with targas, so thats why I got a targa loader.

Thanks.
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Are you sure your texture has a proper alpha channel? What program did you use to make it, and have your tried loading it in another program to check?

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I used Gimp for the creation of the alpha channel.

 

Also I tried changing the order, putting glBlenFunc before (which makes total sense btw) and no change.

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