Re: [Paraview] BOX -> volume?

Thu, 16 Oct 2014 10:54:17 -0700 

Hi Bertwim,
The problem you're experiencing is not an issue of missing extensions, but rather a bug in ATI's driver. Projected tetrahedra is disabled when an ATI device is detected to avoid that bug(ParaView will hang). However it's not a big deal. because you can use the "Bunyk raycast" algrothim instead. After your data is on screen scroll to the bottom of the properties panel and look for the field "Select mapper", set that to "Bunyk ray cast", then change the representation to "volume". 

Burlen


On 10/15/2014 06:58 PM, B.W.H. van Beest wrote:

I am still busy with finding out which etensions are needed, and how I 
can enable them.

THis opebnGL-world is a bit alien to me, so it will take some time.

Regards,
Bertwim

On 10/14/2014 11:07 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 <b...@xs4all.nl 
<mailto:b...@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

    ----------------------------------------------------------------------------

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    0x0b0 24 tc  0  32  0 r  y .   8  8  8  8 . .  0 24  8 16 16
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    0x0b1 24 tc  0  32  0 r  y .   8  8  8  8 . .  0  0  0  0  0 
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    0  0  8 1 None
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    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 
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    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
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    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 
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    0x084  0 tc  0  16  0 r  . .   5  6  5  0 . .  0 16  0  0  0 
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    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 
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    0x08c  0 tc  0  16  0 r  y .   5  6  5  0 . .  0 16  0 16 16
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    0x08d 32 tc  0  32  0 r  y .   8  8  8  8 . .  0 24  8  0  0 
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    0x08e 24 tc  0  32  0 r  y .   8  8  8  8 . .  0 24  8 16 16
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    0x08f  0 tc  0  16  0 r  y .   5  6  5  0 . .  0  0  0  0  0 
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    0x090  0 tc  0  16  0 r  y .   5  6  5  0 . .  0  0  0  0  0 
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    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
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    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
    <b...@xs4all.nl <mailto:b...@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
        <b...@xs4all.nl <mailto:b...@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
            <b...@xs4all.nl <mailto:b...@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



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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/




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    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






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    Visit other Kitware open-source projects 
athttp://www.kitware.com/opensource/opensource.html

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at:http://paraview.org/Wiki/ParaView

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--
/| Aashish Chaudhary
| Technical Leader
| Kitware Inc.
/
/| http://www.kitware.com/company/team/chaudhary.html/




_______________________________________________
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