Hi Jan, We are using 3D studio max. Are you saying that there may be a way to mark edges within 3D studio max?
On average, the exporter exports reductions of about 50 vertices per submesh. This is not very helpful with submeshes of about 400 vertices. Our alternative is to export multiple times some static meshes. To do this, I tried exporting a body0-low.xmf mesh, but it doesn't animate properly. (The vertices are all over the place). I'll let you know if I find a way to LOD these guys. Zach -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jan Ciger Sent: Tuesday, April 17, 2007 13:13 To: osg users Subject: Re: [osg-users] cal3d lod -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Zach Deedler wrote: > Hello osg-animators, > > I apologize for bringing cal3d into this forum, but I feel like I will > more likely get a response here. > > PROBLEM > The cal3d exporter doesn't export low-level LODs > > INVESTIGATION > 1) I export a human model with a body mesh of 10 submeshes. > 2) I check the progressive mesh checkbox in the exporter. > 3) Setting lodLevel to 1.0 results in 3497 vertices. > 4) Setting the lodLevel to 0.0 results in 3010. > 5) Adding up all NUMLODSTEPS for each submesh in the body0.xmf file > equals 487. This equals the lodLevel difference. > > QUESTIONS > 1) How come the exporter is not exporting lower level lods per submesh? Because Cal3D lods are special in the way that the edge collapsing is done on the fly, not a precalculated mesh in a file. However that requires complex preparation of the data - the edges need to be marked as which collapses where depending on some criteria (in order to not collapse e.g. the head of the guy away). Then the LOD level variable in Cal3D determines the *percentage* of the edges to be collapsed, not a discrete LOD level. I am not aware of an exporter which exports this correctly. Blender exporter had an attempt to do it, but the code doesn't work there. I guess you will need to contact Cal3D authors - when you discover how to export the LODs, I am interested to know it too. Jan -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mandriva - http://enigmail.mozdev.org iD8DBQFGJQASn11XseNj94gRAkamAKDK7EzwDJ9z9vHYoMZryTcsB7OJkQCg8yLj iSmioks8wer3sMEntExUYjk= =dM92 -----END PGP SIGNATURE----- _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/ _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
