By that I meant enabling GL_NORMALIZE.
On 7/3/08 1:50 PM, "Gerrick Bivins" <[EMAIL PROTECTED]> wrote: > > Have you tried "normalizing" your normals after scaling? > > > On 7/3/08 1:36 PM, "Galen Faidley" <[EMAIL PROTECTED]> wrote: > >> Doug, >> >> Thanks for getting back to Abhishek on this. I have been working with >> him on the issue as well. >> >> We had already tried alternate default lights and the custom lighting >> but nothing seemed to help (we also tried them again after your post >> as a sanity check). However, seeing the working lights in your screen >> shot made us do some more experimentation. It turns out we were not >> quite using the default osgNav. We had scaled the model by a factor >> 0.001. When we removed the scale the lighting behaved as expected. >> We also added the scale to the osg file and the lighting in osgviewer >> looked exactly like what we originally saw in juggler (the files are >> both attached). >> >> So I guess the question is how do we scale a light or at least get >> equivalently lighting with the scaled model? I tried a number of >> things: attaching the light below the scale transform, scaling the >> light position, and scaling all the light parameters >> (constant_attenuation, linear_attenuation, etc). So far none of these >> seem to make a difference. >> >> We'd appreciate any insight. >> >> Regards >> Galen >> >> >> >> On Thu, Jul 3, 2008 at 11:26 AM, Doug McCorkle <[EMAIL PROTECTED]> wrote: >>> >>> On Jul 3, 2008, at 11:06 AM, Abhishek Seth wrote: >>> >>>> Hi ! >>>> >>>> I am having problems with how models look when loaded in my Application. I >>>> am using OSGNav Sample program from VR Juggler 2.2.1 with OSG 2.4. Juggler >>>> uses osgUtil::SceneView but does not use osgViewer::. >>>> >>>> When I load the file in OsgViewer it looks great; however in Juggler's >>>> OSGNav it looks awful (the colors get washed out). I suspect this is >>>> related >>>> to how Juggler is handling the Materials and Lighting while rendering the >>>> model. I have spent a fair amount of time working through osgviewer.exe in >>>> the debuger to try to determine the what it is doing with lighting. It >>>> seems to set up multiple lights and calls into the light::apply each frame. >>>> Juggler sets up a sigle light and never calls into the light::apply after >>>> the initial set up. Before I investigate this further I thought I'd asked >>>> the list since I have the suspicion that is this something simple and >>>> someone might recognive the issue my just looking at a few screen shots. I >>>> have attached screenshots for both Juggler's OSGNav & OSGViewer and also >>>> the >>>> osg file them self. Furthermore, I have also included a simple model of a >>>> cube that demonstrates the same effect. >>> >>> I imagine this has something to do with how the light is being setup. I >>> would try using different settings in the: >>> >>> http://developer.vrjuggler.org/docs/vrjuggler/2.2/programmer.reference/class>>> v >>> rj_1_1OsgApp.html#1b1994aa3043cd522e749853595d4796 >>> >>> or setup your own light: >>> >>> http://developer.vrjuggler.org/docs/vrjuggler/2.2/programmer.reference/class>>> v >>> rj_1_1OsgApp.html#e0a9dc2d8da29770af997f811df10144 >>> >>> Here is what your data looks like in my VR Juggler / OSG app. >>> >>> Doug >>> >>> >>> >>> >>> _______________________________________________ >>> 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
