The main osgTDS issue is a performance consideration. As currently implemented, it creates a set of new vertices and does a Delaunay triangulation on them. I doubt this will work for 30-60 FPS with any reasonably large set of vertices. But it's fine for what osgTDS was designed for, modification at load time in a separate thread. -Paul
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Zach Deedler > Sent: Monday, April 16, 2007 4:15 PM > To: 'osg users' > Subject: RE: [osg-users] Snow plowing > > Hi Paul, > > I'm still trying to get the exact requirements. I know they > are not advanced, though. > > Basically this: > 1) Represent cleared, normal, and built up snow. > 2) Snow plowing with various blade lengths. > 3) Render 30 to 60Hz. > > Basically we just need to deform the snow surface to reflect > the plowing. > > Zach > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Paul Martz > Sent: Monday, April 16, 2007 14:34 > To: 'osg users' > Subject: RE: [osg-users] Snow plowing > > This sounds like a really fun and interesting project. As > we've already discussed, I think osgTDS might have some > application here, but I imagine it would require some > rearchitecting to perform such operations without sacrificing > real-time frame rates. > > What are the requirements regarding physics? Do you have a > solution for determining how the snow should appear after > being plowed (based on certain parameters such as plow size, > shape, speed, snow consistency and depth, etc), and merely > need to deform the snow surface to reflect the plowing? > -Paul > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of Zach > > Deedler > > Sent: Monday, April 16, 2007 12:20 PM > > To: 'osg users' > > Subject: [osg-users] Snow plowing > > > > Hello osg-people, > > > > PROBLEM > > I need to simulate snow plowing with OSG. > > > > INVESTIGATION > > I1) I am investigating moving/removing/adding vertices in > real-time. > > I2) I am also investigating modifying texture alpha values (Kind of > > like erasing the overlying snow). > > > > QUESTIONS > > Q1) Are there any osg examples that may help me in this > investigation? > > Examples that may dynamically move/remove/add vertices in real-time? > > Q2) I am looking for consultation for simulating snow plowing with > > OSG. If anybody believes they have the expertise to do this please > > contact me. > > Q3) Anybody have suggestions on how to implement snow plowing? > > > > Thank you. > > > > > > Zach > > > > _______________________________________________ > > 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/ > > _______________________________________________ > 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/
