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I am getting border lines when drawing a CIImage to a CIContext. 2) CIContext that has it's buffer cleared to white. 3) Draw using drawImage:inRect:fromRect. 4) Along with the picture a 1 pixel grey border is drawn (varying sides, see second note below for more) Why does this border appear? Notes: -The context is an openGL context inside an NSOpenGLView (although it will happen in full screen too). -Depending on the NSOpenGLView size, the border may only appear on the top, all sides, just right and left side, or just bottom, or top and bottom. -Sometimes the border appears darker or larger (can't really tell) -The lines appear as the only thing in the AlphaBuffer when viewing in OpenGL Profiler -Happens when Blending is enabled or disabled, and regardless if blending is glBlendFunc(GL_ONE, GL_ZERO) or glBlendFunc(GL_ONE,GL_ONE_MINUS_SRC_ALPHA) If you need anymore information I can get it for you. I have spent many many hours on this. I am new to openGL and CoreImage and I can't seem to figure this out. Thanks for anytime people put into helping me out. -mike miller |
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