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Adding second argument in a C++ function prevents OpenGL from drawing?

It could possibly be a memory corruption bug, and by adding the extra parameter you are subtly changing the layout of data in memory and causing the bug to have a visible effect, where before you were getting away with it - i.e. you were still overwriting memory, but happened to be overwriting something unimportant.

Normally your function would be removed by the compiler because it does nothing, however I'm guessing you are compiling in debug mode and so it may not optimize it away.

Categories : C++

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Drawing new Kinetic JS polygon with click function
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iOS drawing goes wrong when drawing view is transformed
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