I'm calling the draw method during the post event of RenderGameOverlayEvent.

 

http://pastebin.com/xQcsNvuv

 

Here's a picture of the current situation (sorry about the craziness):

 

Finally here's a picture of the textures:

 

If the picture couldn't explain it, the transparent parts of the textured rectangles I'm drawing are being drawn as black areas instead of transparent areas.

Hi

 

Probably either the alpha values in your bitmap are not right, or alpha testing is turned off

try

      GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
      GL11.glEnable(GL11.GL_ALPHA_TEST);
// render here
GL11.glPopAttrib();

 

-TGG

 

I would have guessed that GL11.glEnable(GL11.GL_BLEND); wasn't on... But I am probably wrong.

Thanks everyone, TGG fixed it.