As I said without knowing the real-world size of the texture, that's it what each pixel represents 1cm, 1m, 5m, 30m etc you cannot do this as you would be scaling against what ? Just because it texture is 512x512 pixels means nothing unless you know what each pixel represents in rela world sizes for each texture etc
Gordon __________________________________________________________ Gordon Tomlinson Product Manager 3D Email : gtomlinson @ overwatch.textron.com __________________________________________________________ (C): (+1) 571-265-2612 (W): (+1) 703-437-7651 "Self defence is not a function of learning tricks but is a function of how quickly and intensely one can arouse one's instinct for survival" - Master Tambo Tetsura -----Original Message----- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of neil.hug...@tesco.net Sent: Thursday, January 29, 2009 11:18 AM To: osg-users@lists.openscenegraph.org Subject: [osg-users] Re How to deduce texture size .... Hi Art and Gordon, A further thought on this was that I omitted to mention that I do know that the 3D coordinates of the triangles on my object are all in mm. Given that I therefore know the real world size of the triangle, and for each vertex I know the S,T co-ordinate in the texture domain, would this help at all in the math to get a size for the texture applied ? Neil. _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
