<div>Please see below for details of the problem. Having run the depth peeling test using a separate build of vtk (same version as my Ubuntu package: 5.2.1), the result is a failure (seems the front panel isn't translucent) but it does say that depth peeling was used. I'd rather not have to configure a build for the application in order to debug vtk, so if anyone has any ideas why depth peeling might not be used in the application, do get in touch.<br>
</div><div><br></div><div>Cheers,</div><div><br></div><div>Dan.</div><div><br></div><br><div class="gmail_quote">On 16 August 2010 18:11, Francois Bertel <span dir="ltr"><<a href="mailto:francois.bertel@kitware.com">francois.bertel@kitware.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi Dan,<br>
<br>
The best way to ask a question is to post it on the vtkusers list. You<br>
will have a larger audience of people that can answer you:<br>
<br>
<a href="http://www.vtk.org/mailman/listinfo/vtkusers" target="_blank">http://www.vtk.org/mailman/listinfo/vtkusers</a><br>
<br>
To answer your question: make sure you have VTKData and your VTK build<br>
directory points to VTKData, what is the result of:<br>
$ ctest -R TestTranslucentLUTDepthPeeling -V<br>
<br>
Does it say "Depth peeling was used", like here:<br>
<a href="http://www.cdash.org/CDash/testDetails.php?test=62870189&build=694461" target="_blank">http://www.cdash.org/CDash/testDetails.php?test=62870189&build=694461</a><br>
<br>
<br>
On Mon, Aug 16, 2010 at 12:57 PM, Dan Lea <<a href="mailto:danlea@gmail.com">danlea@gmail.com</a>> wrote:<br>
> Hi François, I'm sure this isn't the best way to contact you directly,<br>
> but it's the only one I've found so far.<br>
><br>
> I'm having trouble getting depth peeling to work on my linux system<br>
> (python vtk bindings in a Qt widget, dual nvidia quadro nvs 290, latest<br>
> nvidia drivers), despite what appears to be full suport for it. Can you<br>
> think of any reason that the renderer would not use depth peeling,<br>
> having set everything correctly according to your documentation, and<br>
> given that<br>
> vtk.vtkOpenGLExtensionManager.ExtensionSupported("GL_VERSION_2_0")<br>
> returns 1 (as well as GL_ARB_texture_rectangle), and<br>
> glGetIntegerv(0x0D55) ("GL_ALPHA_BITS") returns 8?<br>
><br>
> Thanks in advance. Dan.<br>
><br>
> Here are the details of the window and renderer after a render:<br>
><br>
> vtkXOpenGLRenderWindow (0x7f7e088ae550)<br>
> Debug: Off<br>
> Modified Time: 223311<br>
> Reference Count: 1<br>
> Registered Events:<br>
> Registered Observers:<br>
> vtkObserver (0x3e958a0)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x4039cd0<br>
> Priority: 0<br>
> Tag: 4<br>
> vtkObserver (0x4038d70)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x403cdb0<br>
> Priority: 0<br>
> Tag: 5<br>
> vtkObserver (0x3e884a0)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x403fde0<br>
> Priority: 0<br>
> Tag: 6<br>
> vtkObserver (0x403f740)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x4042e90<br>
> Priority: 0<br>
> Tag: 7<br>
> vtkObserver (0x4042c90)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x4045f50<br>
> Priority: 0<br>
> Tag: 8<br>
> vtkObserver (0x4045d50)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x4047d80<br>
> Priority: 0<br>
> Tag: 9<br>
> vtkObserver (0x4c7ce40)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x404b130<br>
> Priority: 0<br>
> Tag: 10<br>
> vtkObserver (0x4c8c290)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x404e140<br>
> Priority: 0<br>
> Tag: 11<br>
> vtkObserver (0x4c97ae0)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x4051150<br>
> Priority: 0<br>
> Tag: 12<br>
> vtkObserver (0x4ca60f0)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x4054160<br>
> Priority: 0<br>
> Tag: 13<br>
> vtkObserver (0x4cb3160)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x4047520<br>
> Priority: 0<br>
> Tag: 14<br>
> vtkObserver (0x40483c0)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x3e817e0<br>
> Priority: 0<br>
> Tag: 15<br>
> vtkObserver (0x3f79810)<br>
> Event: 2<br>
> EventName: DeleteEvent<br>
> Command: 0x3e61f50<br>
> Priority: 0<br>
> Tag: 3<br>
> Erase: On<br>
> Window Name: Visualization Toolkit - OpenGL<br>
> Position: (0, 0)<br>
> Size: (1097, 747)<br>
> Mapped: 1<br>
> OffScreenRendering: 0<br>
> Double Buffered: 1<br>
> DPI: 120<br>
> TileScale: (1, 1)<br>
> TileViewport: (0, 0, 1, 1)<br>
> Borders: On<br>
> IsPicking: Off<br>
> Double Buffer: On<br>
> Full Screen: Off<br>
> Renderers:<br>
> Debug: Off<br>
> Modified Time: 6280<br>
> Reference Count: 1<br>
> Registered Events: (none)<br>
> Number Of Items: 1<br>
> Stereo Capable Window Requested: No<br>
> Stereo Render: Off<br>
> Point Smoothing: Off<br>
> Line Smoothing: Off<br>
> Polygon Smoothing: Off<br>
> Anti Aliased Frames: 0<br>
> Abort Render: 0<br>
> Current Cursor: 0<br>
> Desired Update Rate: 0.1<br>
> Focal Depth Frames: 0<br>
> In Abort Check: 0<br>
> NeverRendered: 0<br>
> Interactor: 0<br>
> Motion Blur Frames: 0<br>
> Swap Buffers: On<br>
> Stereo Type: RedBlue<br>
> Number of Layers: 1<br>
> AccumulationBuffer Size 0<br>
> AlphaBitPlanes: On<br>
> AnaglyphColorSaturation: 0.65<br>
> AnaglyphColorMask: 4 , 3<br>
> PainterDeviceAdapter:<br>
> Debug: Off<br>
> Modified Time: 5916<br>
> Reference Count: 1<br>
> Registered Events: (none)<br>
> MultiSamples: 0<br>
> StencilCapable: False<br>
> ReportGraphicErrors: Off<br>
> ContextId: 0x38f3f88<br>
> Color Map: 0<br>
> Display Id: 0x37d26a0<br>
> Next Window Id: 0<br>
> Window Id: 100664256<br>
><br>
> vtkOpenGLRenderer (0x7f7e088af540)<br>
> Debug: Off<br>
> Modified Time: 223310<br>
> Reference Count: 2<br>
> Registered Events: (none)<br>
> Aspect: (1.46854, 1)<br>
> PixelAspect: (1, 1)<br>
> Background: (0, 0, 0)<br>
> Background2: (0.2, 0.2, 0.2)<br>
> GradientBackground: Off<br>
> Viewport: (0, 0, 1, 1)<br>
> Displaypoint: (0, 0, 0)<br>
> Viewpoint: (0, 0, 0)<br>
> Worldpoint: (0, 0, 0, 0)<br>
> Pick Position X1 Y1: -1 -1<br>
> Pick Position X2 Y2: -1 -1<br>
> IsPicking boolean: 0<br>
> Props:<br>
> Debug: Off<br>
> Modified Time: 226173<br>
> Reference Count: 1<br>
> Registered Events: (none)<br>
> Number Of Items: 13<br>
> PickResultProps:<br>
> NULL<br>
> Near Clipping Plane Tolerance: 0.001<br>
> Ambient: (1, 1, 1)<br>
> Backing Store: Off<br>
> Display Point: (0, 0, 0)<br>
> Lights:<br>
> Debug: Off<br>
> Modified Time: 25331<br>
> Reference Count: 1<br>
> Registered Events: (none)<br>
> Number Of Items: 1<br>
> Light Follow Camera: On<br>
> View Point: (0, 0, 0)<br>
> Two Sided Lighting: On<br>
> Automatic Light Creation: On<br>
> Layer = 0<br>
> Interactive = On<br>
> Allocated Render Time: 10<br>
> Last Time To Render (Seconds): 0.075882<br>
> TimeFactor: 131.784<br>
> Erase: On<br>
> Draw: On<br>
> UseDepthPeeling: On<br>
> OcclusionRation: 0.1<br>
> MaximumNumberOfPeels: 4<br>
> LastRenderingUsedDepthPeeling: Off<br>
> Number Of Lights Bound: 1<br>
> PickBuffer 0<br>
> PickedId0<br>
> NumPicked0<br>
> PickedZ 0<br>
> --<br>
> This message was sent from Launchpad by the user<br>
> Dan Lea (<a href="https://launchpad.net/~danlea" target="_blank">https://launchpad.net/~danlea</a>)<br>
> using the "Contact this user" link on your profile page.<br>
> For more information see<br>
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><br>
<font color="#888888"><br>
<br>
<br>
--<br>
François Bertel, PhD | Kitware Inc. Suite 204<br>
1 (518) 371 3971 x113 | 28 Corporate Drive<br>
| Clifton Park NY 12065, USA<br>
</font></blockquote></div><br>