Hi Carsten. > -----Ursprüngliche Nachricht----- > Von: Carsten Neumann [mailto:carsten_neum...@gmx.net] > Gesendet: Donnerstag, 19. Mai 2011 16:23 > An: opensg-users@lists.sourceforge.net > Betreff: Re: [Opensg-users] MultiPassMaterial and ClipPlaneChunk > > Hello Thomas, > > On 05/19/2011 08:37 AM, Henn, Thomas wrote: > > I'm trying to draw a geometry using two different materials. While a > plane intersects the geometry into two halves, the materials should be > applied to these two half geometries. As I don't want to duplicate my > geometry, I tried to solve this with a MultiPassMaterial. So I defined > two materials with two ClipPlaneChunks having different plane > definitions and added them to the MultiPassMaterial. > > > > Although the geometry is rendered twice using both material's color > information, only the second clip plane definition is used for both > rendering passes. > > > > Might this be a bug or did I hit any OpenGL specific limitation? > > i think it's a bug in ClipPlaneChunk::changeFrom, it is a bit too > aggressive in trying to avoid unnecessary state changes and does not > consider the case that old and new chunk may both be enabled and have > the same beacon but a different plane equation. > Can you try the attached patch and see if that fixes it?
That did the trick. It works perfectly now... Thanks a lot, Thomas ------------------------------------------------------------------------------ What Every C/C++ and Fortran developer Should Know! Read this article and learn how Intel has extended the reach of its next-generation tools to help Windows* and Linux* C/C++ and Fortran developers boost performance applications - including clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ Opensg-users mailing list Opensg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opensg-users
