Whoops, looks like I ran into a bug or something in Metal specific to the video card I'm using: http://stackoverflow.com/questions/31925440/metal-texture-mapping-on-mac-os-with-swift …
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@mhorga_
@jessyMeow@warrenm@RedQueenCoder Check it out at https://github.com/robinkunde/MetalTextureMapping …
@robinkunde Looks like an NV-specific compiler bug possibly related to packed struct member offsets. Workaround: https://gist.github.com/warrenm/63e467d387890f517f65 …
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@warrenm That fixed it! Thank you very much. If what form, if any, would that get fixed? Xcode update? -
@robinkunde If it is in fact a backend compiler issue, any fix would probably be synced to an OS software update. -
@warrenm should I file a radar? -
@robinkunde Yes please! -
@warrenm rdar://24249981 -
@robinkunde Thanks for the thorough report!
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@warrenm wow this is great! how did you figure this one out? and why is it isolated to only a GT 750 and not to a GT 650 as well? -
@mhorga_ I’ve seen packed type-related issues before, so once I narrowed it down to that I played around with ways to reinterpret the buffer
End of conversation
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@warrenm@robinkunde interesting… on my GT 650 it works fine but on a GT 750 it does not…pic.twitter.com/ZdVYZwTDTi
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