[Paraview] [EXTERNAL] Re: BOX -> volume?

Burlen Loring bloring at lbl.gov
Tue Oct 14 22:55:56 EDT 2014


the warning is just a warning the algorithm continues to work as it had 
in the past. (right?) Maybe the warning could be removed in release builds.

On 10/14/2014 04:45 PM, Scott, W Alan wrote:
>
> Understand. I replied into the bug itself, but the simple answer is 
> that I didn’t build this version of Mesa – it was provided by a vender 
> and I have no control over it.  And it has to work on this version of 
> Mesa, as it has before.
>
> Alan
>
> *From:*Burlen Loring [mailto:bloring at lbl.gov]
> *Sent:* Tuesday, October 14, 2014 5:18 PM
> *To:* Scott, W Alan; Aashish Chaudhary; B.W.H. van Beest
> *Cc:* ParaView
> *Subject:* Re: [EXTERNAL] Re: [Paraview] BOX -> volume?
>
> Hi Alan,
>
> That is a different issue. You're  seeing that warning because your 
> Mesa build is missing floating point support. Some of the older 
> releases didn't have it, however newer releases do. It's always been a 
> build option that's off by default because of patent issues, so you 
> need to expeictly enable it when compiling mesa. The intention behind 
> that (in hindsight annoying)  warning is to alert you are using an 
> ancient version of mesa and or that you may have not built mesa with 
> floating point support. At the time the warning seemed reasonable to 
> me since without floating point support the projected tets algorithm 
> *could produce precision related artifacts depending on data and 
> rendering parameters and downloading and installing a newer mesa (or 
> simply recompiling your existing mesa build with floating point 
> support enabled) is a relatively easy fix. For me I'd rather know that 
> there's potentially a problem and update mesa, rather than scratch my 
> head about why there are artifacts in my rendering.
>
> With regard to the current thread and Bertwim's issue with ATI GPU, I 
> think the code is currently doing the right thing because projected 
> tets algorithm hangs on the ATI card.
>
> A workaround if you have an ATI card is to set the "select mapper" to 
> "Bunyk ray cast"
>
> Burlen
>
> On 10/14/2014 03:53 PM, Scott, W Alan wrote:
>
>     Burlen/ Aashish/ B.W.H,
>
>     I haven’t been following this thread, but just a note that there
>     is a bug already written about this code, and a similar (but not
>     exact) error.  Said bug report is here:
>     http://www.paraview.org/Bug/view.php?id=15020 It is slated to be
>     fixed in a minor release within the next few months.
>
>     Alan
>
>     *From:*ParaView [mailto:paraview-bounces at paraview.org] *On Behalf
>     Of *Burlen Loring
>     *Sent:* Tuesday, October 14, 2014 4:47 PM
>     *To:* Aashish Chaudhary; B.W.H. van Beest
>     *Cc:* ParaView
>     *Subject:* [EXTERNAL] Re: [Paraview] BOX -> volume?
>
>     You could try it without modifying any code by setting  the
>     following cmake variable.
>
>     VTK_IGNORE_GLDRIVER_BUGS:BOOL=ON
>
>     and recompile ParaView. With my ATI Radeon HD7780 projected
>     tetrahedra just hangs.
>
>     Burlen
>
>     On 10/14/2014 02:07 PM, Aashish Chaudhary wrote:
>
>         Looks like certain extensions are still not quite working on
>         yours system even with the proprietary driver. I will see if I
>         can run your code on my laptop but that would be for tomorrow.
>
>         ** Assuming that this is not data dependent issue (which it
>         should not).
>
>         I think its probably this line causing the issue:
>
>
>         *bool*
>
>         driverSupport
>
>
>
>
>         	
>
>         * #if*
>
>         *      defined(__APPLE__)*
>
>
>
>
>         	
>
>         *=* true;
>
>
>
>
>         	
>
>         **
>
>         *#else*
>
>
>
>
>         	
>
>         *=* *!*(extensions*->*DriverIsATI()
>
>
>
>
>         	
>
>         *&&*
>
>                     (extensions*->*GetDriverGLVersionMajor() *>=* 3))
>
>
>
>
>         	
>
>         *||* extensions*->*GetIgnoreDriverBugs("ATI texturing bug");
>
>
>
>
>         	
>
>         **
>
>         *#endif*
>
>
>
>
>         	
>
>
>
>         On line number 181: can you change this code to :
>
>         *this->*HasHardwareSupport
>
>         *=*
>
>         renwin
>
>         *!=*
>
>         NULL
>
>         *&&*
>
>         *this->*IsSupported(renwin);
>
>         to
>
>         *this->*HasHardwareSupport
>
>         *=*
>
>         1;
>
>
>
>
>         - Aashish
>
>         On Tue, Oct 14, 2014 at 4:53 PM, B.W.H. van Beest
>         <bwvb at xs4all.nl <mailto:bwvb at xs4all.nl>> wrote:
>
>         Progress indeed. But I don't understand what you are saying
>         about the transfer function.
>
>         I' starting to wonder if I have two issues occurring
>         simultaneously.
>         In a new thread I just posted I described my problem in
>         getting the colours in place.
>         I need to write to a vtk file first and load it back.  I just
>         found that when I just did that
>         and then switched fo volume rendering, an error was there
>         about the absence
>         of an opengl extension:
>
>         ERROR: In
>         /usr/local/git/ParaView/VTK/Rendering/VolumeOpenGL/vtkOpenGLProjectedTetrahedraMapper.cxx,
>         line 185
>         vtkOpenGLProjectedTetrahedraMapper (0x58ae490): The required
>         extensions are not supported.
>
>          This is complete unknown terrain for me.
>
>         Regards,
>         Bertwim
>
>
>
>
>         On 10/14/2014 09:58 PM, Burlen Loring wrote:
>
>             progress! it sounds like volume rendering is working on
>             the wavelet dataset.
>
>             You do need the scalars for volume rendering, so make sure
>             you have those when you try. You need to select the
>             scalars in the drop down also, I usually do this before
>             changing to the volume representation. You also may need
>             to edit the transfer function. For testing you could make
>             the opacity over the entire scalar range in which case you
>             should see a solid cube.
>
>             If you've done all that and don't see anything it's likely
>             that the dataset is messed up. Add a dataset->Print(cerr)
>             statement to the end of your request data,  look in the
>             information panel and verify correct number of points and
>             scalar ranges.
>
>             If all else fails post the dataset to the list. After
>             creating your cube go to the file menu and "save data".
>
>
>             On 10/14/2014 10:40 AM, B.W.H. van Beest wrote:
>
>                 Hi Burlen,
>
>                 I have upgraded to the AMD drivers. Thanks for the
>                 hint. It has improved the situation a bit.
>
>                 Furthermore, I created the wavelet source. When
>                 selecting "volume" representation, I do see a three 3
>                 picture, in all 5 volume rendering mode (smart,
>                 raycast and texture mapping, ray cast only, texture
>                 mapping only, GPU based). The picture a rather fuzzy,
>                 but then I don't know what I'm supposed to see here.
>                 The good news is that the openGL errors I had before
>                 when displaying a wavelet, now have gone.
>
>                 The situation with my own cube, though, has unchanged.
>                 unfortunately.
>                 The cube disappears in "volume" representation node,
>                 also when I re-inserted scalar values for each of the
>                 8 vertices.
>
>                 Regards,
>                 Bertwim
>
>                 On 10/14/2014 06:06 PM, Burlen Loring wrote:
>
>                     Hi Bertwim,
>
>                     In recent releases of ParaView I have experienced
>                     issues/flakeyness with volume rendering. Something
>                     you should try: Create the wavelet source, then in
>                     the properties panel find "volume rendering mode"
>                     and set it to "ray cast only".  This has worked
>                     for me on a number of systems. may or may not
>                     work, but worth a try.
>
>                     The output you pasted below shows that although
>                     you've got a sweet ATI GPU you're not taking
>                     advantage of it! You're using the Intel integrated
>                     GPU with Mesa drivers. If I were you I would
>                     install proprietary the AMD drivers
>                     <http://support.amd.com/en-us/download>. This
>                     should give you nice performance boost and may
>                     even solve the OpenGL errors you reported, which
>                     these days are as often (or more) a result of bugs
>                     in the Mesa drivers than in VTK.
>
>                     Burlen
>
>                     On 10/13/2014 11:44 AM, B.W.H. van Beest wrote:
>
>
>
>                         OS:   OpenSuSe 13.1
>
>                         # lspci | grep -i vga
>                         00:02.0 VGA compatible controller: Intel
>                         Corporation 4th Gen Core Processor Integrated
>                         Graphics Controller (rev 06)
>                         01:00.0 VGA compatible controller: Advanced
>                         Micro Devices, Inc. [AMD/ATI] Mars [Radeon HD
>                         8670A/8670M/8750M]
>
>                         # glxinfo
>                         name of display: :0
>                         display: :0  screen: 0
>                         direct rendering: Yes
>                         server glx vendor string: SGI
>                         server glx version string: 1.4
>                         server glx extensions:
>                             GLX_ARB_create_context,
>                         GLX_ARB_create_context_profile,
>                             GLX_ARB_multisample,
>                         GLX_EXT_create_context_es2_profile,
>                             GLX_EXT_import_context,
>                         GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info,
>                             GLX_EXT_visual_rating,
>                         GLX_INTEL_swap_event, GLX_MESA_copy_sub_buffer,
>                             GLX_OML_swap_method, GLX_SGIS_multisample,
>                         GLX_SGIX_fbconfig,
>                             GLX_SGIX_pbuffer,
>                         GLX_SGIX_visual_select_group, GLX_SGI_swap_control
>                         client glx vendor string: Mesa Project and SGI
>                         client glx version string: 1.4
>                         client glx extensions:
>                             GLX_ARB_create_context,
>                         GLX_ARB_create_context_profile,
>                             GLX_ARB_create_context_robustness,
>                         GLX_ARB_fbconfig_float,
>                             GLX_ARB_framebuffer_sRGB,
>                         GLX_ARB_get_proc_address, GLX_ARB_multisample,
>                             GLX_EXT_create_context_es2_profile,
>                         GLX_EXT_fbconfig_packed_float,
>                             GLX_EXT_framebuffer_sRGB,
>                         GLX_EXT_import_context,
>                             GLX_EXT_texture_from_pixmap,
>                         GLX_EXT_visual_info, GLX_EXT_visual_rating,
>                             GLX_INTEL_swap_event,
>                         GLX_MESA_copy_sub_buffer,
>                             GLX_MESA_multithread_makecurrent,
>                         GLX_MESA_swap_control,
>                             GLX_OML_swap_method, GLX_OML_sync_control,
>                         GLX_SGIS_multisample,
>                             GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
>                         GLX_SGIX_visual_select_group,
>                             GLX_SGI_make_current_read,
>                         GLX_SGI_swap_control, GLX_SGI_video_sync
>                         GLX version: 1.4
>                         GLX extensions:
>                             GLX_ARB_create_context,
>                         GLX_ARB_create_context_profile,
>                             GLX_ARB_get_proc_address,
>                         GLX_ARB_multisample,
>                             GLX_EXT_create_context_es2_profile,
>                         GLX_EXT_import_context,
>                             GLX_EXT_texture_from_pixmap,
>                         GLX_EXT_visual_info, GLX_EXT_visual_rating,
>                             GLX_INTEL_swap_event,
>                         GLX_MESA_copy_sub_buffer,
>                             GLX_MESA_multithread_makecurrent,
>                         GLX_MESA_swap_control,
>                             GLX_OML_swap_method, GLX_OML_sync_control,
>                         GLX_SGIS_multisample,
>                             GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
>                         GLX_SGIX_visual_select_group,
>                             GLX_SGI_make_current_read,
>                         GLX_SGI_swap_control, GLX_SGI_video_sync
>                         OpenGL vendor string: Intel Open Source
>                         Technology Center
>                         OpenGL renderer string: Mesa DRI Intel(R)
>                         Haswell Mobile
>                         OpenGL core profile version string: 3.1 (Core
>                         Profile) Mesa 9.2.3
>                         OpenGL core profile shading language version
>                         string: 1.40
>                         OpenGL core profile context flags: (none)
>                         OpenGL core profile extensions:
>                             GL_3DFX_texture_compression_FXT1,
>                         GL_AMD_draw_buffers_blend,
>                             GL_ANGLE_texture_compression_dxt3,
>                         GL_ANGLE_texture_compression_dxt5,
>                             GL_APPLE_object_purgeable,
>                         GL_ARB_ES2_compatibility,
>                             GL_ARB_ES3_compatibility,
>                         GL_ARB_base_instance,
>                             GL_ARB_blend_func_extended,
>                         GL_ARB_copy_buffer, GL_ARB_debug_output,
>                             GL_ARB_depth_buffer_float,
>                         GL_ARB_depth_clamp, GL_ARB_draw_buffers,
>                             GL_ARB_draw_buffers_blend,
>                         GL_ARB_draw_elements_base_vertex,
>                             GL_ARB_draw_instanced,
>                         GL_ARB_explicit_attrib_location,
>                             GL_ARB_fragment_coord_conventions,
>                         GL_ARB_fragment_shader,
>                             GL_ARB_framebuffer_object,
>                         GL_ARB_framebuffer_sRGB,
>                             GL_ARB_get_program_binary,
>                         GL_ARB_half_float_pixel,
>                             GL_ARB_half_float_vertex,
>                         GL_ARB_instanced_arrays,
>                             GL_ARB_internalformat_query,
>                         GL_ARB_invalidate_subdata,
>                             GL_ARB_map_buffer_range,
>                         GL_ARB_occlusion_query2,
>                             GL_ARB_pixel_buffer_object,
>                         GL_ARB_point_sprite, GL_ARB_provoking_vertex,
>                             GL_ARB_robustness, GL_ARB_sampler_objects,
>                         GL_ARB_seamless_cube_map,
>                             GL_ARB_shader_bit_encoding,
>                         GL_ARB_shader_objects,
>                             GL_ARB_shader_texture_lod,
>                         GL_ARB_shading_language_420pack,
>                             GL_ARB_shading_language_packing, GL_ARB_sync,
>                             GL_ARB_texture_buffer_object,
>                         GL_ARB_texture_buffer_object_rgb32,
>                             GL_ARB_texture_compression_rgtc,
>                         GL_ARB_texture_cube_map_array,
>                             GL_ARB_texture_float,
>                         GL_ARB_texture_multisample,
>                             GL_ARB_texture_non_power_of_two,
>                         GL_ARB_texture_query_lod,
>                             GL_ARB_texture_rectangle,
>                         GL_ARB_texture_rg, GL_ARB_texture_rgb10_a2ui,
>                             GL_ARB_texture_storage,
>                         GL_ARB_texture_storage_multisample,
>                             GL_ARB_texture_swizzle,
>                         GL_ARB_timer_query, GL_ARB_uniform_buffer_object,
>                             GL_ARB_vertex_array_bgra,
>                         GL_ARB_vertex_array_object,
>                             GL_ARB_vertex_shader,
>                         GL_ARB_vertex_type_2_10_10_10_rev,
>                             GL_ATI_blend_equation_separate,
>                         GL_ATI_texture_float, GL_EXT_abgr,
>                             GL_EXT_blend_equation_separate,
>                         GL_EXT_draw_buffers2,
>                             GL_EXT_draw_instanced,
>                         GL_EXT_framebuffer_blit,
>                             GL_EXT_framebuffer_multisample,
>                         GL_EXT_framebuffer_multisample_blit_scaled,
>                             GL_EXT_framebuffer_sRGB,
>                         GL_EXT_packed_depth_stencil, GL_EXT_packed_float,
>                             GL_EXT_pixel_buffer_object,
>                         GL_EXT_provoking_vertex, GL_EXT_texture_array,
>                             GL_EXT_texture_compression_dxt1,
>                         GL_EXT_texture_compression_rgtc,
>                             GL_EXT_texture_filter_anisotropic,
>                         GL_EXT_texture_integer,
>                             GL_EXT_texture_sRGB,
>                         GL_EXT_texture_sRGB_decode,
>                             GL_EXT_texture_shared_exponent,
>                         GL_EXT_texture_snorm,
>                             GL_EXT_texture_swizzle,
>                         GL_EXT_timer_query, GL_EXT_transform_feedback,
>                             GL_EXT_vertex_array_bgra,
>                         GL_IBM_multimode_draw_arrays,
>                             GL_MESA_pack_invert,
>                         GL_MESA_texture_signed_rgba,
>                         GL_MESA_ycbcr_texture,
>                             GL_NV_conditional_render,
>                         GL_NV_depth_clamp, GL_NV_packed_depth_stencil,
>                             GL_OES_EGL_image, GL_OES_read_format,
>                         GL_S3_s3tc
>
>                         OpenGL version string: 3.0 Mesa 9.2.3
>                         OpenGL shading language version string: 1.30
>                         OpenGL context flags: (none)
>                         OpenGL extensions:
>                             GL_3DFX_texture_compression_FXT1,
>                         GL_AMD_draw_buffers_blend,
>                             GL_ANGLE_texture_compression_dxt3,
>                         GL_ANGLE_texture_compression_dxt5,
>                             GL_APPLE_object_purgeable,
>                         GL_APPLE_packed_pixels,
>                             GL_APPLE_vertex_array_object,
>                         GL_ARB_ES2_compatibility,
>                             GL_ARB_ES3_compatibility,
>                         GL_ARB_blend_func_extended,
>                             GL_ARB_color_buffer_float,
>                         GL_ARB_copy_buffer, GL_ARB_debug_output,
>                             GL_ARB_depth_buffer_float,
>                         GL_ARB_depth_clamp, GL_ARB_depth_texture,
>                             GL_ARB_draw_buffers,
>                         GL_ARB_draw_buffers_blend,
>                             GL_ARB_draw_elements_base_vertex,
>                         GL_ARB_draw_instanced,
>                             GL_ARB_explicit_attrib_location,
>                         GL_ARB_fragment_coord_conventions,
>                             GL_ARB_fragment_program,
>                         GL_ARB_fragment_program_shadow,
>                             GL_ARB_fragment_shader,
>                         GL_ARB_framebuffer_object,
>                             GL_ARB_framebuffer_sRGB,
>                         GL_ARB_get_program_binary,
>                             GL_ARB_half_float_pixel,
>                         GL_ARB_half_float_vertex,
>                             GL_ARB_instanced_arrays,
>                         GL_ARB_internalformat_query,
>                             GL_ARB_invalidate_subdata,
>                         GL_ARB_map_buffer_range, GL_ARB_multisample,
>                             GL_ARB_multitexture,
>                         GL_ARB_occlusion_query, GL_ARB_occlusion_query2,
>                             GL_ARB_pixel_buffer_object,
>                         GL_ARB_point_parameters, GL_ARB_point_sprite,
>                             GL_ARB_provoking_vertex,
>                         GL_ARB_robustness, GL_ARB_sampler_objects,
>                             GL_ARB_seamless_cube_map,
>                         GL_ARB_shader_bit_encoding,
>                             GL_ARB_shader_objects,
>                         GL_ARB_shader_texture_lod,
>                             GL_ARB_shading_language_100,
>                         GL_ARB_shading_language_420pack,
>                             GL_ARB_shading_language_packing,
>                         GL_ARB_shadow, GL_ARB_sync,
>                             GL_ARB_texture_border_clamp,
>                         GL_ARB_texture_compression,
>                             GL_ARB_texture_compression_rgtc,
>                         GL_ARB_texture_cube_map,
>                             GL_ARB_texture_cube_map_array,
>                         GL_ARB_texture_env_add,
>                             GL_ARB_texture_env_combine,
>                         GL_ARB_texture_env_crossbar,
>                             GL_ARB_texture_env_dot3,
>                         GL_ARB_texture_float,
>                             GL_ARB_texture_mirrored_repeat,
>                         GL_ARB_texture_multisample,
>                             GL_ARB_texture_non_power_of_two,
>                         GL_ARB_texture_query_lod,
>                             GL_ARB_texture_rectangle,
>                         GL_ARB_texture_rg, GL_ARB_texture_rgb10_a2ui,
>                             GL_ARB_texture_storage,
>                         GL_ARB_texture_storage_multisample,
>                             GL_ARB_texture_swizzle,
>                         GL_ARB_timer_query, GL_ARB_transpose_matrix,
>                             GL_ARB_uniform_buffer_object,
>                         GL_ARB_vertex_array_bgra,
>                             GL_ARB_vertex_array_object,
>                         GL_ARB_vertex_buffer_object,
>                             GL_ARB_vertex_program, GL_ARB_vertex_shader,
>                             GL_ARB_vertex_type_2_10_10_10_rev,
>                         GL_ARB_window_pos,
>                             GL_ATI_blend_equation_separate,
>                         GL_ATI_draw_buffers,
>                             GL_ATI_envmap_bumpmap,
>                         GL_ATI_separate_stencil,
>                             GL_ATI_texture_env_combine3,
>                         GL_ATI_texture_float, GL_EXT_abgr,
>                             GL_EXT_bgra, 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_copy_texture, 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_multisample_blit_scaled,
>                         GL_EXT_framebuffer_object,
>                             GL_EXT_framebuffer_sRGB,
>                         GL_EXT_gpu_program_parameters,
>                             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_polygon_offset, GL_EXT_provoking_vertex,
>                             GL_EXT_rescale_normal,
>                         GL_EXT_secondary_color,
>                             GL_EXT_separate_shader_objects,
>                         GL_EXT_separate_specular_color,
>                             GL_EXT_shadow_funcs,
>                         GL_EXT_stencil_two_side, GL_EXT_stencil_wrap,
>                             GL_EXT_subtexture, GL_EXT_texture,
>                         GL_EXT_texture3D,
>                             GL_EXT_texture_array,
>                         GL_EXT_texture_compression_dxt1,
>                             GL_EXT_texture_compression_rgtc,
>                         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_bias,
>                         GL_EXT_texture_object, GL_EXT_texture_rectangle,
>                             GL_EXT_texture_sRGB,
>                         GL_EXT_texture_sRGB_decode,
>                             GL_EXT_texture_shared_exponent,
>                         GL_EXT_texture_snorm,
>                             GL_EXT_texture_swizzle,
>                         GL_EXT_timer_query, GL_EXT_transform_feedback,
>                             GL_EXT_vertex_array,
>                         GL_EXT_vertex_array_bgra,
>                             GL_IBM_multimode_draw_arrays,
>                         GL_IBM_rasterpos_clip,
>                             GL_IBM_texture_mirrored_repeat,
>                         GL_INGR_blend_func_separate,
>                             GL_MESA_pack_invert,
>                         GL_MESA_texture_array,
>                         GL_MESA_texture_signed_rgba,
>                             GL_MESA_window_pos, GL_MESA_ycbcr_texture,
>                         GL_NV_blend_square,
>                             GL_NV_conditional_render,
>                         GL_NV_depth_clamp, GL_NV_light_max_exponent,
>                             GL_NV_packed_depth_stencil,
>                         GL_NV_primitive_restart,
>                             GL_NV_texgen_reflection,
>                         GL_NV_texture_env_combine4,
>                             GL_NV_texture_rectangle, GL_OES_EGL_image,
>                         GL_OES_read_format,
>                             GL_S3_s3tc, GL_SGIS_generate_mipmap,
>                         GL_SGIS_texture_border_clamp,
>                             GL_SGIS_texture_edge_clamp,
>                         GL_SGIS_texture_lod, GL_SUN_multi_draw_arrays
>
>                         20 GLX Visuals
>                             visual  x   bf lv rg d st colorbuffer  sr
>                         ax dp st accumbuffer ms  cav
>                           id dep cl sp  sz l  ci b ro  r  g  b a F gb
>                         bf th cl  r  g  b  a ns b eat
>                         ----------------------------------------------------------------------------
>                         0x042 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x043 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x0ad 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x0ae 24 tc  0  32  0 r  . .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x0af 24 tc  0  32  0 r  . .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x0b0 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8 16 16 16 16  0 0 Slow
>                         0x0b1 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  4 1 None
>                         0x0b2 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  8 1 None
>                         0x0b3 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  4 1 None
>                         0x0b4 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  8 1 None
>                         0x0b5 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x0b6 24 dc  0  32  0 r  . .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x0b7 24 dc  0  32  0 r  . .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x0b8 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x0b9 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8 16 16 16 16  0 0 Slow
>                         0x0ba 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  4 1 None
>                         0x0bb 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  8 1 None
>                         0x0bc 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  4 1 None
>                         0x0bd 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  8 1 None
>                         0x080 32 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>
>                         44 GLXFBConfigs:
>                             visual  x   bf lv rg d st colorbuffer  sr
>                         ax dp st accumbuffer ms  cav
>                           id dep cl sp  sz l  ci b ro  r  g  b a F gb
>                         bf th cl  r  g  b  a ns b eat
>                         ----------------------------------------------------------------------------
>                         0x081  0 tc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x082  0 tc  0  16  0 r  . .   5  6  5 0 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x083  0 tc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 16  0  0  0  0  0  0 0 None
>                         0x084  0 tc  0  16  0 r  . .   5  6  5 0 .  . 
>                         0 16  0  0  0  0  0  0 0 None
>                         0x085  0 tc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x086  0 tc  0  16  0 r  . .   5  6  5 0 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x087 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x088 24 tc  0  32  0 r  . .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x089 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x08a 24 tc  0  32  0 r  . .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x08b  0 tc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 16  0  0  0  0  0  0 0 None
>                         0x08c  0 tc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 16  0 16 16 16  0  0 0 Slow
>                         0x08d 32 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x08e 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8 16 16 16 16  0 0 Slow
>                         0x08f  0 tc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0  0  0  0  0  0  0  4 1 None
>                         0x090  0 tc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0  0  0  0  0  0  0  8 1 None
>                         0x091  0 tc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 16  0  0  0  0  0  4 1 None
>                         0x092  0 tc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 16  0  0  0  0  0  8 1 None
>                         0x093 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  4 1 None
>                         0x094 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  8 1 None
>                         0x095 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  4 1 None
>                         0x096 24 tc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  8 1 None
>                         0x097  0 dc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x098  0 dc  0  16  0 r  . .   5  6  5 0 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x099  0 dc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 16  0  0  0  0  0  0 0 None
>                         0x09a  0 dc  0  16  0 r  . .   5  6  5 0 .  . 
>                         0 16  0  0  0  0  0  0 0 None
>                         0x09b  0 dc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x09c  0 dc  0  16  0 r  . .   5  6  5 0 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x09d 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x09e 24 dc  0  32  0 r  . .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  0 0 None
>                         0x09f 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x0a0 24 dc  0  32  0 r  . .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x0a1  0 dc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 16  0  0  0  0  0  0 0 None
>                         0x0a2  0 dc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 16  0 16 16 16  0  0 0 Slow
>                         0x0a3 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  0 0 None
>                         0x0a4 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8 16 16 16 16  0 0 Slow
>                         0x0a5  0 dc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0  0  0  0  0  0  0  4 1 None
>                         0x0a6  0 dc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0  0  0  0  0  0  0  8 1 None
>                         0x0a7  0 dc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 16  0  0  0  0  0  4 1 None
>                         0x0a8  0 dc  0  16  0 r  y .   5  6  5 0 .  . 
>                         0 16  0  0  0  0  0  8 1 None
>                         0x0a9 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  4 1 None
>                         0x0aa 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0  0  0  0  0  0  0  8 1 None
>                         0x0ab 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  4 1 None
>                         0x0ac 24 dc  0  32  0 r  y .   8  8  8 8 .  . 
>                         0 24  8  0  0  0  0  8 1 None
>
>
>                         On 10/13/2014 07:42 PM, Aashish Chaudhary wrote:
>
>                             What graphics card / graphics driver
>                             version / OS this system has?
>
>                             - Aashish
>
>                             On Mon, Oct 13, 2014 at 1:41 PM, B.W.H.
>                             van Beest <bwvb at xs4all.nl
>                             <mailto:bwvb at xs4all.nl>> wrote:
>
>                             Hi Aashish,
>
>                             This is what I do:
>                             1. start paraview
>                             2. Sources -> Wavelet -> Apply.
>                                  A cube is displayed (Outline
>                             representation).
>                             3. Select 'Volume" representation"
>
>                             cube disappears. Then:
>                             =====================
>                             Generic Warning: In
>                             /usr/local/git/ParaView/VTK/Rendering/VolumeOpenGL/vtkOpenGLGPUVolumeRayCastMapper.cxx,
>                             line 487
>                             failed at glBindTexture 1 OpenGL errors
>                             detected
>                               0 : (1282) Invalid operation
>
>
>
>                             Generic Warning: In
>                             /usr/local/git/ParaView/VTK/Rendering/VolumeOpenGL/vtkOpenGLGPUVolumeRayCastMapper.cxx,
>                             line 487
>                             failed at glBindTexture 1 OpenGL errors
>                             detected
>                               0 : (1282) Invalid operation
>
>
>
>                             Generic Warning: In
>                             /usr/local/git/ParaView/VTK/Rendering/VolumeOpenGL/vtkOpenGLGPUVolumeRayCastMapper.cxx,
>                             line 487
>                             failed at glBindTexture 1 OpenGL errors
>                             detected
>                               0 : (1282) Invalid operation
>                             =========================
>
>
>
>
>
>
>
>                             On 10/13/2014 07:35 PM, Aashish Chaudhary
>                             wrote:
>
>                                 So when you created a wavelet source
>                                 and change the representation to
>                                 volume you got the errors? Can you
>                                 post those errors?
>
>                                 Thanks,
>
>                                 On Mon, Oct 13, 2014 at 1:33 PM,
>                                 B.W.H. van Beest <bwvb at xs4all.nl
>                                 <mailto:bwvb at xs4all.nl>> wrote:
>
>                                 Aashish,
>
>                                 Thanks for the suggestion.
>
>                                 However, doing this gives me all kinds
>                                 of opengl errors (invalid instruction).
>
>                                 Besides that, the wavelet gives me a
>                                 cube indeed, but I need to understand
>                                 when
>                                 I can have a volume rendering. I
>                                 created new Source's (e.g. tri-prism,
>                                 a wedge,
>                                 a box with boundaries of finite
>                                 thickness etc.). But I cannot get
>                                 volume rendering
>                                 to work, grrrrrr. (See other thread)
>
>                                 Kind Regards,
>                                 Bertwim
>
>
>
>
>                                 On 10/13/2014 05:28 PM, Aashish
>                                 Chaudhary wrote:
>
>                                     You can create a wavelet source
>                                     and then display it as a volume.
>
>                                     On Fri, Oct 10, 2014 at 3:45 PM,
>                                     B.W.H. van Beest <bwvb at xs4all.nl
>                                     <mailto:bwvb at xs4all.nl>> wrote:
>
>                                     Can perhaps somebody point me how
>                                     to address the following.
>
>                                     When I create a new source (say: a
>                                     box) I get an a box that
>                                     can be displayed via its surfaces,
>                                     its constituing points, or wireframe
>                                     representation.
>                                     But I need a volume rendering (so
>                                     that I can add e.g. a clipping plane)
>                                     How do I get that?
>
>                                     Regards,
>                                     Bertwim
>
>
>
>                                     _______________________________________________
>                                     Powered by www.kitware.com
>                                     <http://www.kitware.com>
>
>                                     Visit other Kitware open-source
>                                     projects at
>                                     http://www.kitware.com/opensource/opensource.html
>
>                                     Please keep messages on-topic and
>                                     check the ParaView Wiki at:
>                                     http://paraview.org/Wiki/ParaView
>
>                                     Follow this link to
>                                     subscribe/unsubscribe:
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>
>
>
>                                     -- 
>
>                                     /| Aashish Chaudhary
>                                     | Technical Leader
>                                     | Kitware Inc. /
>
>                                     /|
>                                     http://www.kitware.com/company/team/chaudhary.html/
>
>
>
>                                 -- 
>
>                                 /| Aashish Chaudhary
>                                 | Technical Leader
>                                 | Kitware Inc. /
>
>                                 /|
>                                 http://www.kitware.com/company/team/chaudhary.html/
>
>
>
>                             -- 
>
>                             /| Aashish Chaudhary
>                             | Technical Leader
>                             | Kitware Inc. /
>
>                             /|
>                             http://www.kitware.com/company/team/chaudhary.html/
>
>
>
>
>
>                         _______________________________________________
>
>                         Powered bywww.kitware.com  <http://www.kitware.com>
>
>                           
>
>                         Visit other Kitware open-source projects athttp://www.kitware.com/opensource/opensource.html
>
>                           
>
>                         Please keep messages on-topic and check the ParaView Wiki at:http://paraview.org/Wiki/ParaView
>
>                           
>
>                         Follow this link to subscribe/unsubscribe:
>
>                         http://public.kitware.com/mailman/listinfo/paraview
>
>
>
>
>
>                 _______________________________________________
>
>                 Powered bywww.kitware.com  <http://www.kitware.com>
>
>                   
>
>                 Visit other Kitware open-source projects athttp://www.kitware.com/opensource/opensource.html
>
>                   
>
>                 Please keep messages on-topic and check the ParaView Wiki at:http://paraview.org/Wiki/ParaView
>
>                   
>
>                 Follow this link to subscribe/unsubscribe:
>
>                 http://public.kitware.com/mailman/listinfo/paraview
>
>
>         _______________________________________________
>         Powered by www.kitware.com <http://www.kitware.com>
>
>         Visit other Kitware open-source projects at
>         http://www.kitware.com/opensource/opensource.html
>         <http://www.kitware.com/opensource/opensource.html>
>
>         Please keep messages on-topic and check the ParaView Wiki at:
>         http://paraview.org/Wiki/ParaView
>         <http://paraview.org/Wiki/ParaView>
>
>         Follow this link to subscribe/unsubscribe:
>         http://public.kitware.com/mailman/listinfo/paraview
>
>
>
>         -- 
>
>         /| Aashish Chaudhary
>         | Technical Leader
>         | Kitware Inc. /
>
>         /| http://www.kitware.com/company/team/chaudhary.html/
>

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