Disk space and I/O, as well as texture cache space (those textures are wasting 25% in cache).
On Aug 30, 2011, at 2:28 PM, Marcos Fajardo wrote: What's the benefit of removing the alpha, is it simply to save memory and disk space? On Tue, Aug 30, 2011 at 10:56 PM, Larry Gritz <[email protected]<mailto:[email protected]>> wrote: https://github.com/OpenImageIO/oiio/pull/153 maketx --alpha1-detect will omit alpha from textures whose input images had designated alpha channels that were 1.0 for all pixels. Somewhat similar in operation to --monochrome-detect and --constant-detect. Also adds ImageBufAlgo::isConstantChannel() utility and does some minor cleanup/simplification to isConstantColor. (Yes, this is because we have textures with pointless alpha=1 everywhere, and it's easier to fix in image-to-texture conversion than it is to actually fix the problem upstream.) -- Larry Gritz [email protected]<mailto:[email protected]>
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