Hi Sukender, Intel drivers are known for being rather poor, so it may well just be driver bug, I would certainly check for updated drivers. Also get yourself a cheap Nvidia card an pop it in the machine, you may well get quite a different experience and will give you a sanity test.
Robert. On Thu, Nov 6, 2008 at 4:24 PM, Sukender <[EMAIL PROTECTED]> wrote: > Hi again Robert, > > I don't have any custom OpenGL code. > Configuration : Core 2 Duo, integrated chipset (Intel 82945G), Windows XP 32 > bits SP3. > Driver is the "factory default" one, and I never saw such effets in any other > app. > The first bug (strange lightning) has been seen on another configuration, but > not he last one yet (I will test ASAP and inform you). > I'm going to try linking against OSG 2.7.4 (or maybe the wxWidget branch as I > already compiled half of it), but I think that won't change anything. > The problem may not be render-bin related, but I still don't understand... > What a strange effect! > Thank you for taking time for this. > > -- > Sukender > PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ > > > Le Thu, 06 Nov 2008 16:35:17 +0100, Robert Osfield <[EMAIL PROTECTED]> a > écrit: > >> Hi Sukender, >> >> Strange artefacts indeed, but I still don't think they are render bin >> related. >> >> There looks to be an issue with state leakage, such as with my >> suggestion of missing vertex attributes, or perhaps now more likely >> given the screenshot a driver bug. >> >> What OS/hardware/drivers are you using? Try other machines if you >> have access to them. >> >> Do you have an custom OpenGL code that might be causing problems? >> >> Robert. >> >> On Thu, Nov 6, 2008 at 3:16 PM, Sukender <[EMAIL PROTECTED]> wrote: >>> Hi, >>> >>> That becomes stranger and stranger: now that I display another exported >>> model, some of my objects have back face culling problems as the moment the >>> object is added to the scene graph. Moreover, I have a HeightField which >>> has inverted culling on HALF of it! I joined "before-after" screenshots to >>> this message. >>> If anyone has an idea of the problem, please tell me! >>> (I use OSG 2.7.1) >>> >>> -- >>> Sukender >>> PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ >>> >>> >>> Le Thu, 06 Nov 2008 12:50:28 +0100, Sukender <[EMAIL PROTECTED]> a écrit: >>> >>>> Robert, >>>> >>>> Thank you for your answer. I've checked what you pointed. But my exported >>>> model: >>>> - Has no coulour array (just a material) >>>> - Has 196 vertex and 196 normals (so probably no missing normals) >>>> - And has no transparency >>>> >>>> I really don't understand. Any idea? >>>> >>>> Note that I load the model using the cache >>>> (ReaderWriter::Options::CACHE_ALL) and that I duplicate it (in order to >>>> modify it without affecting the cached object) by using: >>>> myGroup = new osg::Group(*loadedCachedModel, >>>> osg::CopyOp::DEEP_COPY_OBJECTS | osg::CopyOp::DEEP_COPY_NODES); >>>> I also tried DEEP_COPY_AL but that has no effect. Anyway, I'm not sure it >>>> is related to my problem... >>>> >>>> I seen that on top of the geodes, there are MatrixTransforms with a stange >>>> "StateSet { 0xba1 ON }" line (Exactly the same in each MatrixTransform), >>>> but removing it didn't change anything. >>>> >>>> >>>> If you want, the geode data looks like: >>>> Geode { >>>> UniqueID "Corps_geode" >>>> DataVariance DYNAMIC >>>> name "Corps_geode" >>>> cullingActive TRUE >>>> num_drawables 1 >>>> Geometry { >>>> StateSet { >>>> UniqueID Corps_stateset >>>> DataVariance STATIC >>>> rendering_hint OPAQUE_BIN >>>> GL_BLEND OFF >>>> Material { >>>> DataVariance STATIC >>>> ColorMode OFF >>>> diffuseColor 0.300000011921 0.5 0.0 1.0 >>>> specularColor 1.0 1.0 1.0 1 >>>> emissionColor 0.111620302463 0.186033830047 0.0 1 >>>> shininess 24.5960784314 >>>> } >>>> } >>>> VertexArray 196 {...} >>>> NormalBinding PER_VERTEX >>>> NormalArray 196 {...} >>>> PrimitiveSets 2 {...} >>>> } >>>> } > > _______________________________________________ > 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
