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2015-02-03PNG: fix mipmapping of grayscale imagesMatthias Schiffer
2015-02-03PNG: fix scaling of grayscale imagesMatthias Schiffer
2015-02-03Generate light layerMatthias Schiffer
2015-02-03Start mipmapping infrastructureMatthias Schiffer
2015-02-02Refactor PNG writingMatthias Schiffer