Hello adrian,
my database is a terrain, thats right. And I use a simple point light. My problem is, I think the PSSM need more performance than the static shadow map (texture)? Or it is a wrong thought? And what is a frustum base shadow map? Thanks, Martin _____ Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von Adrian Egli OpenSceneGraph (3D) Gesendet: Freitag, 20. Juni 2008 17:38 An: OpenSceneGraph Users Betreff: Re: [osg-users] static ShadowMap Hi martin, what kind of 3d database do you like to visualize with shadow? and what kind of light are you using. if your scene is a terrain like database, you can have a look at parallel split shadow map. if you have a small scene, than you can visualise with static shadow. but it the scene is too big for high quality shadow, it would be better to use a PSSM or frustum base shadow map, otherwise it's not sure that you don't have enough resolution. regards adrian 2008/6/19 "Martin Großer" <[EMAIL PROTECTED]>: Hello, first, I have a general question. If you want to use shadows in you scene, would you use the shadow volumes or the shadow maps? I use the shadow maps from the osgShadow nodekit. But the normal ShadowMap is unaesthetic and when I use the softShadowMap, my application runs very slowly. And my idea is a static ShadowMap, which create once at the beginning and save this as ImageFile. Here is my source code, but it doesn't work. // ShadowTexture erstellt (leer) _texture = new osg::Texture2D; _texture->setTextureSize(TEXTURE_SIZE_X, TEXTURE_SIZE_Y); _texture->setInternalFormat(GL_DEPTH_COMPONENT); _texture->setShadowComparison(true); _texture->setShadowTextureMode(osg::Texture2D::LUMINANCE); _texture->setFilter(osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR); _texture->setFilter(osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR); _texture->setWrap(osg::Texture2D::WRAP_S,osg::Texture2D::CLAMP_TO_BORDER); _texture->setWrap(osg::Texture2D::WRAP_T,osg::Texture2D::CLAMP_TO_BORDER); _texture->setBorderColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f)); // Kamera für das PreRendering einstellen { // Kamera erstellen osg::ref_ptr<osg::Camera> _camera = new osg::Camera; // Kamera konfigurieren _camera->setReferenceFrame(osg::Camera::ABSOLUTE_RF_INHERIT_VIEWPOINT); //_camera->setCullCallback(new CameraCullCallback(this)); _camera->setClearMask(GL_DEPTH_BUFFER_BIT); _camera->setClearColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f)); _camera->setComputeNearFarMode(osg::Camera::DO_NOT_COMPUTE_NEAR_FAR); // Viewport in Texturegröße erstellen _camera->setViewport(0,0,TEXTURE_SIZE_X,TEXTURE_SIZE_Y); // PreRendering einstellen _camera->setRenderOrder(osg::Camera::PRE_RENDER); // Kamera soll OpenGL Frame Buffer Object nutzen _camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT); // hänge die Texture als Buffer an die Kamera _camera->attach(osg::Camera::DEPTH_BUFFER, _texture.get()); _camera->addChild(_scene.get()); osgDB::writeImageFile(*(_texture->getImage()),"test.bmp"); } What is my mistake? Or have anyone a idea, whether I can create a static shadow with the osgShadow nodekit? Cheers, Martin -- Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- ******************************************** Adrian Egli
_______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
