Hi Johannes I am interested to see. Thanks a lot!
Yuting On Mon, 2004-11-08 at 14:44, Johannes Behr wrote: > Hi, > > > The DVRGeometry is primarily used to define clipping volumes. It's not > > the Geometry of the slices or anything like that, these are created on > > the fly and not stored anywhere. > > > > Given that you want to prototype pre-intgrated volume rendering, > > If you really would like to do pre-integrated Volume rendering > (e.g. Engel 2001 paper) using the simple SliceSet the > current implementation is not sufficient. > We have to extend the code a little bit: > > I assuming that you write a simple glsl/cg shader to do > the volume shading. The SliceSet does not only have > to provide one texture coordinate but also the values > for the next slice to define a slap. The interpolated scalar > values from the first two texture reads ( s0(t0) and s(t1)) are > than used again for the depend pre-integrated-lookup-texture read > ( color(s0,s1)). Afterwards you can use the color (+ gradient or > whatever) to do you lightning calculation. > > I did this modification in my copy and just stored the > next slice tex-coord into the second tex-coord for the > current vertex which is not needed for anything else. > If you are interested I can just commit the changes. > > regards, > Johannes > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: > Sybase ASE Linux Express Edition - download now for FREE > LinuxWorld Reader's Choice Award Winner for best database on Linux. > http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click > _______________________________________________ > Opensg-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/opensg-users ------------------------------------------------------- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click _______________________________________________ Opensg-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensg-users
