jimmy82 wrote: > Hi, > Is there any way that I can choose a suitable texture format that > represents only 8-bit gray-scale texture? So far, I understand that the > internal representation of gray-scale and coloured texture are similar under > OpenGL compression schemes and S3TC. >
All S3TC compressions use at least 3 color channels. You need to use RGTC1 compression for 8-bit one channel texture ( from this OpenGL extension : ARB_texture_compression_rgtc ). Fortunatelly OSG handles that compression. You can use nvcompress application from Nvidia Texture Tools to compress your images ( this is bc4 compression, I think ). Paweł Księżopolski ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=56831#56831 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
