Hi Julia, On Tue, Mar 10, 2009 at 4:35 AM, Julia Guo <osgfo...@tevs.eu> wrote: > I have a model made in 3DS with textures and shaders and I would like to use > it within OSG. When I try displaying it with osgviewer.exe the textures are > rendered but not the shaders. > > I know shaders are algorithms, so perhaps they are not exported with the > model. > Or 3DS may be using a DirectX shader while OSG is OpenGL based. > Am I on the right track??
How are you loading the models? If you are loading them via .3ds then you certainly won't get any shaders as the .3ds format pre-dates any such functionality. You'll certainly needs to the use the OSGExp plugin to 3D Studio. The status of shaders with this plugin I'm unsure about though as I've never used it personally. > Is there a way to design models with shaders and import them into OSG? > Or do I need to manually attach my shaders with osg::Shader (which would make > models harder to design)? As Guy mentioned the .osg format does support shaders, and being an ascii format it's possible to edit it by hand. Not ideal. You can also store the shaders in staight ascii files and load this into osg::Shader. See the osgshaders example. osgVolume also make uses of locally defined as well as ones sourced from OpenSceneGarph-Data/shaders. > (P.S. - in learning OSG I found the examples extremely useful, but I feel > many have been over engineered so that they obscure their purpose. For > instance many of the examples have a flag to use a Composite Viewer instead > of the default Viewer. I think it would be ideal for beginners if the > examples were stripped down to focus on their core functionality.) Out of 133 examples I can only find 6 that use CompositeViewer at all, and 2 of this specifically demonstrate the CompositeViewer, and the others demonstrate windows integration that applies to both Viewer and CompositeViewer save for the osgpick example that has the two options to show the commonality between the two classes w.r.t picking. So.. if you think many of the examples have both the CompositeViewer and Viewer and this complicates things then please recalibrate your perception by looking at the 127 other examples that do just stick to Viewer and generally keep the viewer code to it's bare minimum, often just three lines of code. Robert. _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
