Vertical sprite mosaic bug #1008
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Finally figured out how to fix this properly. Thanks for finding it! |
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When comparing mosaic output between mGBA and my own emulator, I noticed that the bottom block of vertical mosaic sprites would sometimes render incorrectly in mGBA. Below are pictures of Tonc's mos_demo.gba running on hardware and in mGBA, with a horizontal mosaic of 2 and a vertical mosaic of 15. The yellow fangs of the metroid on the left should be half the length of the blue fangs of the metroid on the right, but on mGBA they're the same length.


The demo can be downloaded from www.coranac.com/files/tonc-bin.zip. You can use the d-pad to adjust the mosaic of the sprite, and A+d-pad to adjust the mosaic of the background.
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