Hi I''ve got a problem with tga files. My code is heavyly based on the tutorial concerning loading of compressed and uncompressed tga files. That works perfectly but I want them to be transparent for sprites. So i enabled the Alphatest - I thought than the transparency from the file is used but that didn''t work. I use the following code and it seems to work flawlessly (type is GL_RGBA) but without transparency. Are there other things to change/include? glGenTextures(1, &_mytextures[filename].texID); glBindTexture(GL_TEXTURE_2D, _mytextures[filename].texID); gluBuild2DMipmaps(GL_TEXTURE_2D,3,_mytextures[filename].width, _mytextures[filename].height, _mytextures[filename].type, GL_UNSIGNED_BYTE, _mytextures[filename].imageData);

I havent used gluBuild2DMipmaps for a long time but I belive 2nd parametr should be 4 not 3 (GL_RGBA -> 4 components). Otherwise go to www.opengl.org and read gluBuild2DMipmaps spec.

You should never let your fears become the boundaries of your dreams.

Yeah! Now it works!
I must admit that that was an damn stupid mistake and the only excuse that I have is that I''m a lazy newbie and I just copied the code and missed that change - thanks a lot - especially for the quick answer!