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Need help understanding texture compression


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I've looked all over for an explanation on the differences between BC5 (Linear, Unsigned) and BC5 (Linear, Unsigned, AT12).

Would someone please kindly enlighten me? I'm very new to all this and can't seem to find any information on AT12 when I google.

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5 hours ago, ZenDisaster said:

I've looked all over for an explanation on the differences between BC5 (Linear, Unsigned) and BC5 (Linear, Unsigned, AT12).

Would someone please kindly enlighten me? I'm very new to all this and can't seem to find any information on AT12 when I google.

 

The only difference between those two formats is the file header value used to identify it. ATI2 is one of the legacy names for BC5, which some applications require instead of the BC5U value that the BC5 (Linear, Unsigned) format uses.

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