Funny, I should have changed my search to just "projective texture" and I think this would have popped up.
-B -----Original Message----- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of J.P. Delport Sent: Thursday, September 29, 2011 5:19 AM To: OpenSceneGraph Users Subject: Re: [osg-users] GLSL shaders and projective texturing I think Paul Martz did already. http://thread.gmane.org/gmane.comp.graphics.openscenegraph.cvs/9237/focus=9304 jp On 29/09/2011 13:46, Per Nordqvist wrote: > I also struggled with this issue once and I believe osgspotlight suffers > from exactly the same "quadrant defect" if you look closely. > Would be really nice if somebody submitted a fix. > > /Per > > On 29 September 2011 01:59, Brad Colbert <bcolb...@rscusa.com > <mailto:bcolb...@rscusa.com>> wrote: > > Glenn,____ > > __ __ > > Bingo! That was it. I wasn't quite sure that would work with > TexGen but there you go!____ > > __ __ > > Thanks!____ > > __ __ > > ____ > > __ __ > > -B____ > > __ __ > > *From:*osg-users-boun...@lists.openscenegraph.org > <mailto:osg-users-boun...@lists.openscenegraph.org> > [mailto:osg-users-boun...@lists.openscenegraph.org > <mailto:osg-users-boun...@lists.openscenegraph.org>] *On Behalf Of > *Glenn Waldron > *Sent:* Wednesday, September 28, 2011 4:40 PM > > > *To:* OpenSceneGraph Users > *Subject:* Re: [osg-users] GLSL shaders and projective texturing____ > > __ __ > > Brad,____ > > I once had the same issue; calcuating my texgen matrix like this > worked:____ > > __ __ > > texGenMat =____ > > modelViewMat *____ > > projectionMat *____ > > osg::Matrix::translate(1, 1, 1) *____ > > osg::Matrix::scale(0.5, 0.5, 0.5);____ > > __ __ > > > Glenn Waldron / Pelican Mapping / @glennwaldron > > ____ > > On Wed, Sep 28, 2011 at 7:34 PM, Brad Colbert <bcolb...@rscusa.com > <mailto:bcolb...@rscusa.com>> wrote:____ > > Hi Chris, > > Thanks! I found that one too but it still doesn't help me figure > out how to fix the coordinates so that my projected texture renders > in the center of the projection frustum instead of the upper right > quadrant. It's strange and I can't figure it out. > > -B____ > > > > -----Original Message----- > From: osg-users-boun...@lists.openscenegraph.org > <mailto:osg-users-boun...@lists.openscenegraph.org> > [mailto:osg-users-boun...@lists.openscenegraph.org > <mailto:osg-users-boun...@lists.openscenegraph.org>] On Behalf Of > Chris 'Xenon' Hanson > Sent: Wednesday, September 28, 2011 3:31 PM > To: OpenSceneGraph Users > Subject: Re: [osg-users] GLSL shaders and projective texturing____ > > On 9/27/2011 7:21 PM, Brad Colbert wrote: > > I am closer! > > Looks like the other example I have is FFP not GLSL. Here's a > working GLSL > implementation (not OSG) that should be relatively easy to feed with > OSG uniforms and such: > > http://www.ozone3d.net/tutorials/glsl_texturing_p08.php#part_8 > > -- > Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com > http://www.alphapixel.com/ > Digital Imaging. OpenGL. Scene Graphs. GIS. GPS. Training. > Consulting. Contracting. > "There is no Truth. There is only Perception. To Perceive is to > Exist." - Xen > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > <mailto:osg-users@lists.openscenegraph.org> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > <mailto:osg-users@lists.openscenegraph.org> > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org____ > > __ __ > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > <mailto:osg-users@lists.openscenegraph.org> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
