Re: [osg-users] Transparency and hdr texture
Hi Jason and Ragnar, Thanks for answering. I did'nt know that the OpenEXR format supports 16 bits per pixels and an alpha channel. Thanks for the link. Josselin. This message was sent using IMP, the Internet Messaging Program. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Transparency and hdr texture
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: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] För Jason Daly Skickat: den 29 maj 2009 17:04 Till: OpenSceneGraph Users Ämne: Re: [osg-users] Transparency and hdr texture josselin.pe...@lcpc.fr 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 osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Transparency and hdr texture
Hi, Does anyone know an image format storing high dynamic range values (32 bits per pixel) and transparency ? Thanks, Josselin This message was sent using IMP, the Internet Messaging Program. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Transparency and hdr texture
josselin.pe...@lcpc.fr 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 osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
