Hi Geoff,
I don't believe that OSG enforces any type of image size limit. I suspect that your computer is simply running out of memory trying to allocate that much contiguous memory (over 5 GB for that image).

The good news is that OSG does have a framework in place that can help you handle and display large images. I don't know much about how it works, but I believe that osg::PagedLOD is involved somehow.

Rob


On 12/21/2010 11:30 AM, Geoff Rhodes wrote:
Hi,

I am currently working on creating a poster image from several images and the 
file size is pretty large. Currently the one I am trying to create is 65250 
wide x 22500 pixels  in height (Image needs to be large)

Currently I am doing the following:


Code:
posterImage = new osg::Image;   
                posterImage->allocateImage( (mHeight), (mWidth), 1, GL_RGBA, 
GL_UNSIGNED_BYTE );



Right now it is giving me an exception when trying to allocate that image. Is 
there a size limit on it, or am I doing something wrong?



...

Thank you!

Cheers,
Geoff

------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=35036#35036





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