Which version are you using the latest SVN, the latest PSSM (see post from friday to yesterday) ?
2008/5/19 Alejandro Segovia <[EMAIL PROTECTED]>: > > On Mon, May 19, 2008 at 6:03 PM, Alejandro Segovia <[EMAIL PROTECTED]> > wrote: > >> Hello List, >> >> I'm having a hard time using PSSM (or anything besides ShadowTexture for >> that matter) to add shadows to my scene. >> >> I've got some initialization code inspired in the osgshadow example, which >> seems to work fine when I pass the --NVidea parameter, but when I try the >> very same technique in my code, it just crashes inside the PSSM's cull() >> method. >> >> This is the backtrace I get from the core dump: >> >> #0 0xb6f961c9 in osgShadow::ParallelSplitShadowMap::cull () >> from /usr/local/OpenSceneGraph/2.2.0/lib/libosgShadow.so.25 >> #1 0xb6f87656 in osgShadow::ShadowTechnique::traverse () >> from /usr/local/OpenSceneGraph/2.2.0/lib/libosgShadow.so.25 >> #2 0xb6f8e7c0 in osgShadow::ShadowedScene::traverse () >> from /usr/local/OpenSceneGraph/2.2.0/lib/libosgShadow.so.25 >> #3 0xb6d38196 in osgUtil::CullVisitor::apply () >> from /usr/local/OpenSceneGraph/2.2.0/lib/libosgUtil.so.25 >> #4 0xb6f8eb11 in osgShadow::ShadowedScene::accept () >> from /usr/local/OpenSceneGraph/2.2.0/lib/libosgShadow.so.25 >> #5 0xb726fa84 in osg::Group::traverse () >> from /usr/local/OpenSceneGraph/2.2.0/lib/libosg.so.25 >> #6 0xb6d38196 in osgUtil::CullVisitor::apply () >> from /usr/local/OpenSceneGraph/2.2.0/lib/libosgUtil.so.25 >> #7 0xb727095f in osg::Group::accept () >> from /usr/local/OpenSceneGraph/2.2.0/lib/libosg.so.25 >> #8 0xb6dc89f7 in osgUtil::SceneView::cullStage () >> from /usr/local/OpenSceneGraph/2.2.0/lib/libosgUtil.so.25 >> #9 0xb6dc7cd6 in osgUtil::SceneView::cull () >> from /usr/local/OpenSceneGraph/2.2.0/lib/libosgUtil.so.25 >> #10 0xb6a596ef in Canvas::customEvent (this=0x80c4780, >> event=0x80deb60) at Canvas.cpp:200 >> >> Canvas is just a custom class derived from QGLWidget. >> >> This is the initialization code I'm using, please note the ShadowedScene >> node is not the root of the scene graph. >> >> osg::ref_ptr<osgShadow::ParallelSplitShadowMap> shadowTech = >> new osgShadow::ParallelSplitShadowMap(NULL, 3); >> shadowTech->setTextureResolution(1024); >> shadowTech->setMinNearDistanceForSplits(0); >> shadowTech->setMaxFarDistance(0); >> shadowTech->setMoveVCamBehindRCamFactor(0); >> double polyoffsetfactor = 10.0f; //-0.02; >> double polyoffsetunit = 20.0f; //1.0; >> >> shadowTech->setPolygonOffset(osg::Vec2(polyoffsetfactor,polyoffsetunit)); >> >> _shadowNode = new osgShadow::ShadowedScene(); >> _shadowNode->setShadowTechnique(shadowTech.get()); >> >> _shadowNode->setCastsShadowTraversalMask(0x2|0x8); >> _shadowNode->setReceivesShadowTraversalMask(0x1|0x8); >> >> I'm also using SceneView objects to hold the camera information such as >> the projection and modelview matrices. There are two lights in the scene and >> only one object (a floor). >> >> Thanks in advance, >> Alejandro Segovia.- >> >> -- >> [EMAIL PROTECTED] >> http://varrojo.linuxuruguay.org > > > > Setting the OSG_NOTIFY_LEVEL variable to DEBUG in order to determine what > could possibly be wrong, I noticed the shader program is never compiled for > PSSM! Is there some way to force program compilation in OSG? > > I attach the dump for osgshadow and then for my application. Notice mine > never gets its shader compiled. > > Dump for osgshadow: > > ... > View::init() > ParallelSplitShadowMap : Texture ID=0 Resolution=1024 > CullSettings::readEnvironmentalVariables() > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > ParallelSplitShadowMap : Texture ID=1 Resolution=1024 > CullSettings::readEnvironmentalVariables() > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > ParallelSplitShadowMap : Texture ID=2 Resolution=1024 > CullSettings::readEnvironmentalVariables() > > ParallelSplitShadowMap: GLSL shader code: > ------------------------------------------------------------------- > uniform sampler2D baseTexture; > uniform sampler2D randomTexture; > uniform float enableBaseTexture; > uniform sampler2DShadow shadowTexture0; > uniform float zShadow0; > uniform sampler2DShadow shadowTexture1; > uniform float zShadow1; > uniform sampler2DShadow shadowTexture2; > uniform float zShadow2; > void main(void) > { > vec4 coord = gl_FragCoord; > float shadow0 = shadow2DProj( shadowTexture0,gl_TexCoord[1]).r; > vec4 random0 = > 0.0012207*coord.z*texture2D(randomTexture,gl_TexCoord[1].st); > float shadow10 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.r*vec4(-1,-1,0,0)).r; > float shadow20 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.g*vec4(1,-1,0,0)).r; > float shadow30 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.b*vec4(1,1,0,0)).r; > float shadow40 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.a*vec4(-1,1,0,0)).r; > shadow0 = shadow0 + shadow10 + shadow20 + shadow30 + shadow40; > shadow0 = shadow0*0.2; > float shadow1 = shadow2DProj( shadowTexture1,gl_TexCoord[2]).r; > vec4 random1 = > 0.0012207*coord.z*texture2D(randomTexture,gl_TexCoord[2].st); > float shadow11 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.r*vec4(-1,-1,0,0)).r; > float shadow21 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.g*vec4(1,-1,0,0)).r; > float shadow31 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.b*vec4(1,1,0,0)).r; > float shadow41 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.a*vec4(-1,1,0,0)).r; > shadow1 = shadow1 + shadow11 + shadow21 + shadow31 + shadow41; > shadow1 = shadow1*0.2; > float shadow2 = shadow2DProj( shadowTexture2,gl_TexCoord[3]).r; > vec4 random2 = > 0.0012207*coord.z*texture2D(randomTexture,gl_TexCoord[3].st); > float shadow12 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.r*vec4(-1,-1,0,0)).r; > float shadow22 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.g*vec4(1,-1,0,0)).r; > float shadow32 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.b*vec4(1,1,0,0)).r; > float shadow42 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.a*vec4(-1,1,0,0)).r; > shadow2 = shadow2 + shadow12 + shadow22 + shadow32 + shadow42; > shadow2 = shadow2*0.2; > float term0 = (1.0-shadow0); > float term1 = (1.0-shadow1); > float term2 = (1.0-shadow2); > float v = clamp(term0+term1+term2,0.0,1.0); > vec4 color = gl_Color; > vec4 texcolor = texture2D(baseTexture,gl_TexCoord[0].st); > float enableBaseTextureFilter = enableBaseTexture*(1.0 - > step(texcolor.x+texcolor.y+texcolor.z+texcolor.a,0.0)); > vec4 colorTex = color*texcolor; > gl_FragColor = (color*(1.0-enableBaseTextureFilter) + > colorTex*enableBaseTextureFilter)*(1.0-0.30*v); > } > > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > cull_draw() 0x8074200 > OpenGL extensions supported by installed OpenGL drivers are: > GL_ARB_color_buffer_float > GL_ARB_depth_texture > GL_ARB_draw_buffers > GL_ARB_fragment_program > GL_ARB_fragment_program_shadow > GL_ARB_fragment_shader > GL_ARB_half_float_pixel > GL_ARB_imaging > GL_ARB_multisample > GL_ARB_multitexture > GL_ARB_occlusion_query > GL_ARB_pixel_buffer_object > GL_ARB_point_parameters > GL_ARB_point_sprite > GL_ARB_shader_objects > GL_ARB_shading_language_100 > GL_ARB_shadow > GL_ARB_texture_border_clamp > GL_ARB_texture_compression > GL_ARB_texture_cube_map > GL_ARB_texture_env_add > GL_ARB_texture_env_combine > GL_ARB_texture_env_dot3 > GL_ARB_texture_float > GL_ARB_texture_mirrored_repeat > GL_ARB_texture_non_power_of_two > GL_ARB_texture_rectangle > GL_ARB_transpose_matrix > GL_ARB_vertex_buffer_object > GL_ARB_vertex_program > GL_ARB_vertex_shader > GL_ARB_window_pos > GL_ATI_draw_buffers > GL_ATI_texture_float > GL_ATI_texture_mirror_once > GL_EXTX_framebuffer_mixed_formats > GL_EXT_Cg_shader > GL_EXT_abgr > GL_EXT_bgra > GL_EXT_bindable_uniform > GL_EXT_blend_color > GL_EXT_blend_equation_separate > GL_EXT_blend_func_separate > GL_EXT_blend_minmax > GL_EXT_blend_subtract > GL_EXT_compiled_vertex_array > GL_EXT_depth_bounds_test > GL_EXT_draw_buffers2 > GL_EXT_draw_instanced > GL_EXT_draw_range_elements > GL_EXT_fog_coord > GL_EXT_framebuffer_blit > GL_EXT_framebuffer_multisample > GL_EXT_framebuffer_object > GL_EXT_framebuffer_sRGB > GL_EXT_geometry_shader4 > GL_EXT_gpu_program_parameters > GL_EXT_gpu_shader4 > GL_EXT_multi_draw_arrays > GL_EXT_packed_depth_stencil > GL_EXT_packed_float > GL_EXT_packed_pixels > GL_EXT_pixel_buffer_object > GL_EXT_point_parameters > GL_EXT_rescale_normal > GL_EXT_secondary_color > GL_EXT_separate_specular_color > GL_EXT_shadow_funcs > GL_EXT_stencil_two_side > GL_EXT_stencil_wrap > GL_EXT_texture3D > GL_EXT_texture_array > GL_EXT_texture_buffer_object > GL_EXT_texture_compression_latc > GL_EXT_texture_compression_rgtc > GL_EXT_texture_compression_s3tc > GL_EXT_texture_cube_map > GL_EXT_texture_edge_clamp > GL_EXT_texture_env_add > GL_EXT_texture_env_combine > GL_EXT_texture_env_dot3 > GL_EXT_texture_filter_anisotropic > GL_EXT_texture_integer > GL_EXT_texture_lod > GL_EXT_texture_lod_bias > GL_EXT_texture_mirror_clamp > GL_EXT_texture_object > GL_EXT_texture_sRGB > GL_EXT_texture_shared_exponent > GL_EXT_timer_query > GL_EXT_vertex_array > GL_IBM_rasterpos_clip > GL_IBM_texture_mirrored_repeat > GL_KTX_buffer_region > GL_NVX_conditional_render > GL_NV_blend_square > GL_NV_conditional_render > GL_NV_copy_depth_to_color > GL_NV_depth_buffer_float > GL_NV_depth_clamp > GL_NV_fence > GL_NV_float_buffer > GL_NV_fog_distance > GL_NV_fragment_program > GL_NV_fragment_program2 > GL_NV_fragment_program_option > GL_NV_framebuffer_multisample_coverage > GL_NV_geometry_shader4 > GL_NV_gpu_program4 > GL_NV_half_float > GL_NV_light_max_exponent > GL_NV_multisample_coverage > GL_NV_multisample_filter_hint > GL_NV_occlusion_query > GL_NV_packed_depth_stencil > GL_NV_parameter_buffer_object > GL_NV_pixel_data_range > GL_NV_point_sprite > GL_NV_primitive_restart > GL_NV_register_combiners > GL_NV_register_combiners2 > GL_NV_texgen_reflection > GL_NV_texture_compression_vtc > GL_NV_texture_env_combine4 > GL_NV_texture_expand_normal > GL_NV_texture_rectangle > GL_NV_texture_shader > GL_NV_texture_shader2 > GL_NV_texture_shader3 > GL_NV_transform_feedback > GL_NV_vertex_array_range > GL_NV_vertex_array_range2 > GL_NV_vertex_program > GL_NV_vertex_program1_1 > GL_NV_vertex_program2 > GL_NV_vertex_program2_option > GL_NV_vertex_program3 > GL_S3_s3tc > GL_SGIS_generate_mipmap > GL_SGIS_texture_lod > GL_SGIX_depth_texture > GL_SGIX_shadow > GL_SUN_slice_accum > OpenGL extension 'GL_ARB_vertex_program' is supported. > OpenGL extension 'GL_EXT_secondary_color' is supported. > OpenGL extension 'GL_EXT_fog_coord' is supported. > OpenGL extension 'GL_ARB_multitexture' is supported. > OpenGL extension 'GL_NV_occlusion_query' is supported. > OpenGL extension 'GL_ARB_occlusion_query' is supported. > OpenGL extension 'GL_EXT_timer_query' is supported. > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > OpenGL extension '' is not supported. > OpenGL extension 'GL_EXT_framebuffer_object' is supported. > OpenGL extension 'GL_ARB_vertex_program' is supported. > OpenGL extension 'GL_ARB_fragment_program' is supported. > OpenGL extension 'GL_ARB_shader_objects' is supported. > OpenGL extension 'GL_ARB_vertex_shader' is supported. > OpenGL extension 'GL_ARB_fragment_shader' is supported. > OpenGL extension 'GL_ARB_shading_language_100' is supported. > glVersion=2.1, isGlslSupported=YES, glslLanguageVersion=1.2 > OpenGL extension 'GL_ARB_pixel_buffer_object' is supported. > Setting up osg::Camera::FRAME_BUFFER_OBJECT > OpenGL extension 'GL_EXT_texture_filter_anisotropic' is supported. > OpenGL extension 'GL_EXT_texture_compression_s3tc' is supported. > OpenGL extension 'GL_ARB_shadow' is supported. > OpenGL extension 'GL_ARB_shadow_ambient' is not supported. > OpenGL extension 'GL_APPLE_client_storage' is not supported. > OpenGL extension 'GL_EXT_texture_integer' is supported. > Setting up osg::Camera::FRAME_BUFFER_OBJECT > Setting up osg::Camera::FRAME_BUFFER_OBJECT > Setting up osg::Camera::FRAME_BUFFER > > Compiling FRAGMENT source: > uniform sampler2D baseTexture; > uniform sampler2D randomTexture; > uniform float enableBaseTexture; > uniform sampler2DShadow shadowTexture0; > uniform float zShadow0; > uniform sampler2DShadow shadowTexture1; > uniform float zShadow1; > uniform sampler2DShadow shadowTexture2; > uniform float zShadow2; > void main(void) > { > vec4 coord = gl_FragCoord; > float shadow0 = shadow2DProj( shadowTexture0,gl_TexCoord[1]).r; > vec4 random0 = > 0.0012207*coord.z*texture2D(randomTexture,gl_TexCoord[1].st); > float shadow10 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.r*vec4(-1,-1,0,0)).r; > float shadow20 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.g*vec4(1,-1,0,0)).r; > float shadow30 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.b*vec4(1,1,0,0)).r; > float shadow40 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.a*vec4(-1,1,0,0)).r; > shadow0 = shadow0 + shadow10 + shadow20 + shadow30 + shadow40; > shadow0 = shadow0*0.2; > float shadow1 = shadow2DProj( shadowTexture1,gl_TexCoord[2]).r; > vec4 random1 = > 0.0012207*coord.z*texture2D(randomTexture,gl_TexCoord[2].st); > float shadow11 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.r*vec4(-1,-1,0,0)).r; > float shadow21 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.g*vec4(1,-1,0,0)).r; > float shadow31 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.b*vec4(1,1,0,0)).r; > float shadow41 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.a*vec4(-1,1,0,0)).r; > shadow1 = shadow1 + shadow11 + shadow21 + shadow31 + shadow41; > shadow1 = shadow1*0.2; > float shadow2 = shadow2DProj( shadowTexture2,gl_TexCoord[3]).r; > vec4 random2 = > 0.0012207*coord.z*texture2D(randomTexture,gl_TexCoord[3].st); > float shadow12 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.r*vec4(-1,-1,0,0)).r; > float shadow22 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.g*vec4(1,-1,0,0)).r; > float shadow32 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.b*vec4(1,1,0,0)).r; > float shadow42 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.a*vec4(-1,1,0,0)).r; > shadow2 = shadow2 + shadow12 + shadow22 + shadow32 + shadow42; > shadow2 = shadow2*0.2; > float term0 = (1.0-shadow0); > float term1 = (1.0-shadow1); > float term2 = (1.0-shadow2); > float v = clamp(term0+term1+term2,0.0,1.0); > vec4 color = gl_Color; > vec4 texcolor = texture2D(baseTexture,gl_TexCoord[0].st); > float enableBaseTextureFilter = enableBaseTexture*(1.0 - > step(texcolor.x+texcolor.y+texcolor.z+texcolor.a,0.0)); > vec4 colorTex = color*texcolor; > gl_FragColor = (color*(1.0-enableBaseTextureFilter) + > colorTex*enableBaseTextureFilter)*(1.0-0.30*v); > } > > Linking osg::Program "" id=1 contextID=0 > Uniform "baseTexture" loc=0 size=1 type=sampler2D > Uniform "enableBaseTexture" loc=1 size=1 type=float > Uniform "randomTexture" loc=2 size=1 type=sampler2D > Uniform "shadowTexture0" loc=3 size=1 type=sampler2DShadow > Uniform "shadowTexture1" loc=4 size=1 type=sampler2DShadow > Uniform "shadowTexture2" loc=5 size=1 type=sampler2DShadow > > end cull_draw() 0x8074200 > > == My app == > > ParallelSplitShadowMap : Texture ID=0 Resolution=1024 > CullSettings::readEnvironmentalVariables() > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > ParallelSplitShadowMap : Texture ID=1 Resolution=1024 > CullSettings::readEnvironmentalVariables() > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > ParallelSplitShadowMap : Texture ID=2 Resolution=1024 > CullSettings::readEnvironmentalVariables() > > ParallelSplitShadowMap: GLSL shader code: > ------------------------------------------------------------------- > uniform sampler2D baseTexture; > uniform sampler2D randomTexture; > uniform float enableBaseTexture; > uniform sampler2DShadow shadowTexture0; > uniform float zShadow0; > uniform sampler2DShadow shadowTexture1; > uniform float zShadow1; > uniform sampler2DShadow shadowTexture2; > uniform float zShadow2; > void main(void) > { > vec4 coord = gl_FragCoord; > float shadow0 = shadow2DProj( shadowTexture0,gl_TexCoord[1]).r; > vec4 random0 = > 0.0012207*coord.z*texture2D(randomTexture,gl_TexCoord[1].st); > float shadow10 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.r*vec4(-1,-1,0,0)).r; > float shadow20 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.g*vec4(1,-1,0,0)).r; > float shadow30 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.b*vec4(1,1,0,0)).r; > float shadow40 = shadow2DProj( > shadowTexture0,gl_TexCoord[1]+random0.a*vec4(-1,1,0,0)).r; > shadow0 = shadow0 + shadow10 + shadow20 + shadow30 + shadow40; > shadow0 = shadow0*0.2; > float shadow1 = shadow2DProj( shadowTexture1,gl_TexCoord[2]).r; > vec4 random1 = > 0.0012207*coord.z*texture2D(randomTexture,gl_TexCoord[2].st); > float shadow11 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.r*vec4(-1,-1,0,0)).r; > float shadow21 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.g*vec4(1,-1,0,0)).r; > float shadow31 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.b*vec4(1,1,0,0)).r; > float shadow41 = shadow2DProj( > shadowTexture1,gl_TexCoord[2]+random1.a*vec4(-1,1,0,0)).r; > shadow1 = shadow1 + shadow11 + shadow21 + shadow31 + shadow41; > shadow1 = shadow1*0.2; > float shadow2 = shadow2DProj( shadowTexture2,gl_TexCoord[3]).r; > vec4 random2 = > 0.0012207*coord.z*texture2D(randomTexture,gl_TexCoord[3].st); > float shadow12 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.r*vec4(-1,-1,0,0)).r; > float shadow22 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.g*vec4(1,-1,0,0)).r; > float shadow32 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.b*vec4(1,1,0,0)).r; > float shadow42 = shadow2DProj( > shadowTexture2,gl_TexCoord[3]+random2.a*vec4(-1,1,0,0)).r; > shadow2 = shadow2 + shadow12 + shadow22 + shadow32 + shadow42; > shadow2 = shadow2*0.2; > float term0 = (1.0-shadow0); > float term1 = (1.0-shadow1); > float term2 = (1.0-shadow2); > float v = clamp(term0+term1+term2,0.0,1.0); > vec4 color = gl_Color; > vec4 texcolor = texture2D(baseTexture,gl_TexCoord[0].st); > float enableBaseTextureFilter = enableBaseTexture*(1.0 - > step(texcolor.x+texcolor.y+texcolor.z+texcolor.a,0.0)); > vec4 colorTex = color*texcolor; > gl_FragColor = (color*(1.0-enableBaseTextureFilter) + > colorTex*enableBaseTextureFilter)*(1.0-0.30*v); > } > > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > Uniform Adding parent > > Then it segfaults. > > > -- > [EMAIL PROTECTED] > http://varrojo.linuxuruguay.org > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > -- ******************************************** Adrian Egli
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