Hi,
I think it is used as cross-checking method. Indeed, if the calculated
number (using osg::Image) is less than the number of mipmaps specified
in the dds file, the calculated value is kept. On the other hand if the
theoretical number of possible mipmaps is higher than the number of
mipmaps specified by the dds file, the number used is the one of the dds
file. In my opinion, it seems to be possible to have dds files with
wrong mipmap informations...
Cheers,
Christian
Le 11/01/2013 13:42, Lukasz Izdebski a écrit :
Hi,
I have a question. Why while reading dds file, to set number of mipmaps it is
using function osg::Image::computeNumberOfMipmapLevels( s, t, r ) but not what
is written in dds file header ?
I think that dds file knows better how many mipmaps it has inside.
Thank you!
Cheers,
Lukasz
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