https://github.com/OpenImageIO/oiio/pull/208
Like this:
maketx 256.tif --mipimage 128.tif --mipimage 64.tif -o out.tx
This makes the first there mip levels 256.tif, 128.tif, and 64.tif. Levels
thereafter will continue to downsample the last one specified (64.tif, in this
case).
I did this a while back in order to make a special debugging MIPmap. Sat in my
tree for a long time, I just remembered I should have it reviewed and merged.
--
Larry Gritz
[email protected]
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