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    1. POHow to stop OpenGL background bleed on transparent textures
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      1. PTQuestion
    1. POHow to efficiently copy depth buffer to texture on OpenGL ES
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    2. PO
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    3. POShadow Mapping - artifacts on thin wall orthogonal to light
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      1. POReducing duplicate data in vertex buffers
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      1. POCan't commit/update file in Xcode editor (SVN)
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    1. COBut doesn't the compiler have to evaluate the arguments to objc_msgSend first? Perhaps @selector(doSomething) doesn't take much time, but if there was more complex arguments i would think THOSE arguments would need to be evaluated first. If this were the case, doing the !=nil check in the expression does make sense. I personally always include !=nil for this reason (and because i switch between other langs a lot so like to see this everywhere :)).
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    2. COA few suggestions, I've done all this too and have it working but after a LONG time. I reviewed the code but don't see anything obviously wrong. Check your obj data, often times I'd forget to triangulate the data, so there would be four sets of indices where I was expecting just 3. Also, if you have multiple objects in the .obj file things SHOULD line up, but perhaps not. In fact, what I'd suggest is starting with a VERY basic obj file, 1 or 2 tri's, a basic texture, and basic normals. Then step through the code, and make sure things are going where you expect them too in your structures.
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      1. POWriting my own OBJ parser that loads the data in VBOs, how to re-order data to match single index list?
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    3. COYour explanation isn't making sense to me unfortunately. I tried your suggestion too, and things are unchanged. I still don't understand why the EDGES of the fence is where the background is bleeding. It seems obvious that since I'm not sorting the objects, when I try to draw the buildings between the background and the fence those EDGES are failing the depth test, but I really don't think they should be (given I only have 1.0 or 0.0 as alpha, so the 0.0s should be discarded and not added to the depth buffer).
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