Robert,
Thanks for the suggestion, I'm sure it will work fine! I think I will
even collect the image filenames in the callback and compare them to the
image filenames used for the osg::Textures in the resulting scene graph.
/Andreas
Robert Osfield wrote:
On 5/21/06, *Andreas Ekstrand* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
Hi,
Can I determine if a loaded IVE file has imbedded textures or not?
Once a model is loaded in there isn't typically any file specific
information retained, it'll just be a scene graph in memory with
little or no correlation of where the file came from.
I
suppose I could check whether the file names in the osg::Image objects
exist on disk or not, but I would prefer another way since images
with
the same file names could exist on disk even if they were inbedded.
I don't think this would be robust for the reasons you point out.
Perhaps you could try something like using a
osgDB::Registry::ReadFileCallback to catch all read file requests, and
if you are already reading a .ive you could then look for any
subsequent readImage requests. Then after loaded check the scene
graph for the number of osg::Image attached to it, and if it matches
the number of readImage's then you've got a file which had all
osg::Image read in from external sources, otherwise you have a
candidate for an .ive file which contains embedded images.
Robert.
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