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How to disable pixel blending in ofImage

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@genekogan wrote:

this may have an obvious answer but is it possible to disable blending pixels when drawing an image at a bigger size (or using ofScale)? say i have a 50x50 image but draw it at 300x300. i'd like to remove the gradients between pixels and just draw them pixelated. i thought ofDisableAntiAliasing would do it but i suppose that's just for lines.

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