How do I obtain exact pixelization of lines?
The OpenGL specification allows for a wide range of line rendering hardware, so exact pixelization may not be possible at all. You might want to read the OpenGL specification and become familiar yourself with the diamond exit rule. Being familiar with this rule will give you the best chance to obtain exact pixelization. Briefly, the diamond exit rule specifies that a diamond-shaped area exists within each pixel. A pixel is rasterized by a line only if the mathematical definition of that line exits the diamond inscribed within that pixel.
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- How do I obtain exact pixelization of lines?