The OpenExr implementation in Osg only supports the half-float format. It can load Textures saved in 32bits per pixel but the loader converts them into half float. But the loader however supports an Alfa channel.
The OpenExr plug-in can be extended to support 32-bits textures but that would require some head scratching and someone diving into the OpenEXR interface documentation. http://www.openexr.com/documentation.html Regards Ragnar -----Ursprungligt meddelande----- Från: [email protected] [mailto:[email protected]] För Jason Daly Skickat: den 29 maj 2009 17:04 Till: OpenSceneGraph Users Ämne: Re: [osg-users] Transparency and hdr texture [email protected] wrote: > Hi, > > Does anyone know an image format storing high dynamic range values (32 > bits per pixel) and transparency ? > I believe OSG supports OpenEXR, which was designed by Industrial Light and Magic for this purpose. I think it supports both half-float and float formats, and it's probably the highest-quality format for HDR pictures. There is also the HDR format, but I think it only does RGBE, not float. --"J" _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
