   blending question
  i am having a problem with putting a bmp on a texture and having it be transparent if its white and just show the black parts.  i have it working sometimes where all you you can see is the black and then other times when i run the program you can see a faint blackness around the part i want black (or its a faint black where its completely white in the texture).  im not really sure what is causing this because it works one time then i try it again & it doesnt, or if i put the effect in 2 different places 1 works and the other doesnt.  to see what im talking about this screenshot shows what it should look likeCorrectand this is the strange black tint that shouldnt be thereNot Correctany ideasthanksporterEdited by - porteriv on April 30, 2001 8:23:26 PM  
  Your bitmap must have shades of grey in it - they are there in both, but more visible in the "incorrect" due to stretching of the texture.If there is no grey, perhaps you have an alpha channel in there.Are you creating as GL_RGB or GL_RGBA?- Brett    ~~~Cheers!Brett PorterPortaLib3D : A portable 3D game/demo libary for OpenGL;  i just figured it out it was because i didnt disable the lighting when i was drawing those quads so im assuming that even though i didnt specify normals it was using the light source just enough to piss me off, so when i turned it off it looks just rightporter  