Gentlemen, Thank you for your replies.
It turns out that the node is not bumpmapped with a shader (I've used a nodevisitor to check if a program was loaded on a node's stateset and didn't see any). However, the node seems to be having a shadow map. In our model editor (Creator) there is an "extended material" on the node, and the material has, among other things a surface modifier that has shadow map on texture unit 1. Looking at the exported osg file, I don't see how this texture is used as shadow map (I would assume a shader could need to use it, but we're not adding any shader for now (I'm debugging)). Could it be that upon loading, the plugin for the .osg files assumes that texture unit 1 would be the shadow map and enables it right away or something like that? Thanks for your help! -- Alexandre Vaillancourt 2015-02-05 4:26 GMT-05:00 Robert Osfield <[email protected]>: > Hi Alexandre, > > Does the scene graph code you have inherited contain use of > osgFX::BumpMapping? > > osgFX::BumpingMapping It's a really ancient bit of the OSG so it's really > how I'd tackle it these days but it provides the old style > osg::VertexProgram and FragmentProgram. Have a look at the > OpenSceneGraph/src/osgFX/BumpMapping.cpp so see what it's doing. > > Robert. > > On 4 February 2015 at 23:57, Alexandre Vaillancourt < > [email protected]> wrote: > >> Hi All, >> >> I'm not too knowledgeable in the field of shaders and bump map, but >> lately I've had the task of fixing something related to it in our software. >> >> The issue is that some faces in our software are bumpmapped (I see the 3 >> different texture units used in the .osg file, as well as in the original >> .flt model), but the node itself does not seem to have an osg::Program (nor >> osg::VertexProgram or osg::FragmentProgram) part of its stateset's state >> attributes. >> >> The question is this: is it possible that there is a way that a chunk of >> code of OSG could set up bump mapping on a node by itsefl and NOT add an >> osg::Program to it? For instance, if it finds more than one texture units >> in the .osg file, it would find a way to add a shader to enable the bump >> maping..? >> >> I'm really wondering how that node could be bump mapped... >> >> Thanks >> >> -- >> Alexandre Vaillancourt >> >> _______________________________________________ >> 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 > >
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