Well, I've managed to find why the shader never was compiled. Apparently the problem was adding the lights to the scene graph before adding the ShadowedScene node (note the ShadowedScene node is not the root of my scene graph). Conversely, if lights are added to the scene graph before the ShadowedScene node is added, then the shader never gets compiled and the application segfaults when doing in the cull stage.
Hope this helps anyone else how comes across the same issue. Alejandro.- On Tue, May 20, 2008 at 10:59 AM, Alejandro Segovia <[EMAIL PROTECTED]> wrote: > Hello Adrian, thanks for your reply, > > On Tue, May 20, 2008 at 3:27 AM, Adrian Egli OpenSceneGraph (3D) < > [EMAIL PROTECTED]> wrote: > >> Which version are you using the latest SVN, the latest PSSM (see post from >> friday to yesterday) ? >> > > I'm actually on OSG 2.2, but I don't think this is a problem with the OSG > version, since the osgshadow example runs without problems. > > I think it must have something to do with the viewer the example uses... > somehow it forces the shader to be compiled before rendering, but since I am > using "my own" viewer, it doesn't seem to get compiled before trying to > render and the cull() call segfaults. > > Maybe there is an OpenGL way to "flush" shader compilation? > > Thanks, > Alejandro.- > > >> >> 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 >> _______________________________________________ >> osg-users mailing list >> [email protected] >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> >> > > > -- > [EMAIL PROTECTED] > http://varrojo.linuxuruguay.org > -- [EMAIL PROTECTED] http://varrojo.linuxuruguay.org
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