Hi Yefei, On Wed, Apr 1, 2009 at 4:24 PM, Yefei He <y...@nads-sc.uiowa.edu> wrote:
> Thanks for your reply. Yes, I agree it will take quite some > effort and possibly format change to implement texture sharing > between ive files with built-in textures. That's why I would like > a quicker way out:) -- using ive files without built-in texture but > refer to compressed texture in dds format. Is my assumption > correct that compressed texture in dds format remains compressed > when loaded into memory and passed on to the osg core and GL layer > without being decompressed, as opposed to say jpeg images which > are decompressed during loading and then passed on to osg core in > uncompressed bitmap format? > Yes this is correct, the OSG loads the S3TC_DXT* compressed formats from the .dds file and keeps them in that format in the osg::Image and the final downloaded texture. You can compress the textures for a file using osgconv: osgconv --compressed myfile.flt myfile.ive It won't solve the problem of sharing textures though. Robert.
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