Yes, of course, but I am quite a newbie and learning, just remember this ;) You can find the code at http://www.uni-koblenz.de/~mfritzen/osg/ What I want to do additionally, is combining per pixel lighting and shadows and therefore I need the vertex program, which is not doing what it should...
Gordon Tomlinson wrote: > Marcus > > If not already done how about making your code (setup, shaders, hows its > applied etc) available > to those that may be willing to help they may be able to use your code as a > template to help them > or notice something possibly aerie with the code or how its used etc > > Just a thought > > __________________________________________________________ > Gordon Tomlinson > > Email : [EMAIL PROTECTED] > Website : www.vis-sim.com www.gordontomlinson.com > > __________________________________________________________ > > "Self defence is not a function of learning tricks > but is a function of how quickly and intensely one > can arouse one's instinct for survival" > -Master Tambo Tetsura > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Marcus > Fritzen > Sent: 04 September 2007 12:42 > To: Public OpenSceneGraph Users discussion list. > Subject: Re: [osg-users] textures and shader > > I installed the newest drivers from nvidia, but with no success. I go on > searching, but perhaps someone, if he has a lot of time ;), could try to > write a simple vertex shader for osgShadow::ShadowMap for passing texture > attributes etc. to the fragment program. I tried it, but for me it is not > working. If someone else could get it working I would know that the problem > is on my site. Thanks to you Robert and everybody else. > > --marcus > > Robert Osfield wrote: > >> Hi Marcus, >> >> It could be that the OpenGL driver isn't implementing the built in >> uniforms correctly. Go search for driver updates or the manufacturers >> forums. >> >> On 9/4/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: >> >> >>> So, now I have erased all warnings, but it still does not work. How I >>> mentioned before, could there be a problem with the texture Matrix >>> (gl_TextureMatrix[1] in the vertex shader). How can I check, that the >>> texture matrix is set up correctly in my main program? Btw turning on >>> the debug level was helpful for erasing the warning, but I could not >>> found any errors. >>> Thanks >>> >>> -marcus >>> >>> >>> >>>> No I have not checked it. But I think the code is correct, because >>>> when I use it without the vertex shader, it is working fine (the >>>> same code). The warnings are just casting stuff, I will clean up >>>> now. But I think this is not the problem, but I will also check my code >>>> > with glvalidate. > >>>> >>>> >>>>> Have you checked your shader with glvalidate program from >>>>> 3dlabs?what are the warnings?these usually are important to resolve. >>>>> >>>>> On 9/3/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: >>>>> >>>>> >>>>>> So, the notify thing is working now. I get the info logs when >>>>>> compiling, but everything seems to be fine. The glProgram links >>>>>> correctly, just some casting warnings. I really don't know why it >>>>>> fails. Could there be a problem with the gl_TextureMatrix[1] in >>>>>> the vertex program? What I want is simply to transfer the >>>>>> gl_TexCoords of my shadowMap to the frag program. >>>>>> I >>>>>> am still thankful for every hint. >>>>>> >>>>>> --marcus >>>>>> >>>>>> >>>>>> >>>>>>> Yeah, i have searched the website, but this I have not found ;) >>>>>>> >>>>>>> >>>>>> Thanks >>>>>> >>>>>> >>>>>>> Robert. >>>>>>> >>>>>>> >>>>>>> >>>>>>>> http://www.openscenegraph.org/projects/osg/wiki/Support/TipsAndT >>>>>>>> ricks >>>>>>>> >>>>>>>> On 9/3/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: >>>>>>>> >>>>>>>> >>>>>>>>> Hi Mike, >>>>>>>>> >>>>>>>>> first thanks for your answer, but could you or someone else >>>>>>>>> tell me >>>>>>>>> >>>>>>>>> >>>>>> how >>>>>> >>>>>> >>>>>>>>> to >>>>>>>>> turn on the notify level? I never worked with it. >>>>>>>>> >>>>>>>>> Thanks. >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>>> Hi, >>>>>>>>>> >>>>>>>>>> Turn up the notify level to retrieve the infologs for >>>>>>>>>> compilation >>>>>>>>>> >>>>>>>>>> >>>>>> and >>>>>> >>>>>> >>>>>>>>>> linking. There could be some other error preventing creation >>>>>>>>>> of >>>>>>>>>> >>>>>>>>>> >>>>>> a >>>>>> >>>>>> >>>>>>>>>> functioning glProgram. >>>>>>>>>> >>>>>>>>>> -- mew >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> Mike Weiblen -- Zebra Imaging -- Austin Texas USA -- >>>>>>>>>> http://www.zebraimaging.com/ >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>> -----Original Message----- >>>>>>>>>>> From: [EMAIL PROTECTED] >>>>>>>>>>> >>>>>>>>>>> >>>>>> [mailto:osg-users- >>>>>> >>>>>> >>>>>>>>>>> [EMAIL PROTECTED] On Behalf Of Marcus Fritzen >>>>>>>>>>> Sent: Thursday, August 30, 2007 4:24 AM >>>>>>>>>>> To: [email protected] >>>>>>>>>>> Subject: [osg-users] textures and shader >>>>>>>>>>> >>>>>>>>>>> Hello, >>>>>>>>>>> >>>>>>>>>>> I have a little problem using texture coordinates with shader. >>>>>>>>>>> >>>>>>>>>>> >>>>>> The >>>>>> >>>>>> >>>>>>>>>>> problem is, if I use a vertex program with varying for the >>>>>>>>>>> >>>>>>>>>>> >>>>>> fragment >>>>>> >>>>>> >>>>>>>>>>> program, the texture coordinates seem to be incorrect, but if >>>>>>>>>>> I >>>>>>>>>>> >>>>>>>>>>> >>>>>> just >>>>>> >>>>>> >>>>>>>>>> use >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>> the fragment program without the vertex program everything is >>>>>>>>>>> >>>>>>>>>>> >>>>>> fine. >>>>>> >>>>>> >>>>>>>>>> For >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>> example when computing shadows: >>>>>>>>>>> >>>>>>>>>>> VERT >>>>>>>>>>> ... >>>>>>>>>>> vertex = gl_ModelViewMatrix * gl_Vertex; gl_TexCoord[0] = >>>>>>>>>>> gl_MultiTexCoord0; gl_TexCoord[1] = gl_TextureMatrix[1] * >>>>>>>>>>> vertex; ... >>>>>>>>>>> FRAG >>>>>>>>>>> ... >>>>>>>>>>> float depth = shadow2DProj( shadowTexture, gl_TexCoord[1] >>>>>>>>>>> ).x; ... >>>>>>>>>>> this is not working. On texture unit 0 is the base texture, >>>>>>>>>>> on 1 >>>>>>>>>>> >>>>>>>>>>> >>>>>> the >>>>>> >>>>>> >>>>>>>>>>> shadowmap. But without the vertex program it is working. >>>>>>>>>>> Anybody >>>>>>>>>>> >>>>>>>>>>> >>>>>> any >>>>>> >>>>>> >>>>>>>>>>> hints? >>>>>>>>>>> >>>>>>>>>>> Thanks, >>>>>>>>>>> Marcus >>>>>>>>>>> _______________________________________________ >>>>>>>>>>> osg-users mailing list >>>>>>>>>>> [email protected] >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegr >>>>>> aph.or >>>>>> >>>>>> >>>>>>>>>> g >>>>>>>>>> _______________________________________________ >>>>>>>>>> osg-users mailing list >>>>>>>>>> [email protected] >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegr >>>>>> aph.org >>>>>> >>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> osg-users mailing list >>>>>>>>> [email protected] >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegr >>>>>> aph.org >>>>>> >>>>>> >>>>>>>> _______________________________________________ >>>>>>>> osg-users mailing list >>>>>>>> [email protected] >>>>>>>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscene >>>>>>>> graph.org >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> _______________________________________________ >>>>>>> osg-users mailing list >>>>>>> [email protected] >>>>>>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-opensceneg >>>>>>> raph.org >>>>>>> >>>>>>> >>>>>>> >>>>>> _______________________________________________ >>>>>> osg-users mailing list >>>>>> [email protected] >>>>>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegr >>>>>> aph.org >>>>>> >>>>>> >>>>>> >>>>> _______________________________________________ >>>>> osg-users mailing list >>>>> [email protected] >>>>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegra >>>>> ph.org >>>>> >>>>> >>>>> >>>> _______________________________________________ >>>> osg-users mailing list >>>> [email protected] >>>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegrap >>>> h.org >>>> >>>> >>>> >>> _______________________________________________ >>> osg-users mailing list >>> [email protected] >>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph >>> .org >>> >>> >>> >> _______________________________________________ >> osg-users mailing list >> [email protected] >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph. >> org >> >> >> > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
