Hi everyone<div><br></div><div>I got it working (AMD FirePro V7900) on a Win 7 64 bit system with VTK 5.8</div><div><br></div><div>Not sure exactly what was the key, BUT since I was in the process of building a new system these where my steps. </div>
<div><br></div><div>1 - New clean install of windows 7 and drivers. </div><div>2 - New clean install of VTK 5.8 (including the 64 bit flag) </div><div><br></div><div>Once VTK was compiled and installed I modified the code below to have SHADING OFF in the volume properties. </div>
<div><br></div><div>Also, I installed the DirectX SDK - BUT I am unsure if that really is doing what some suggest (which is get the video card ID and info from it). </div><div><br></div><div>Thank you, </div><div><br></div>
<div>S</div><div><br><div class="gmail_quote">On Tue, Jul 3, 2012 at 7:31 PM, Sergio Aguirre <span dir="ltr"><<a href="mailto:sergio.aguirre@gmail.com" target="_blank">sergio.aguirre@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi everyone <div><br></div><div>I am testing a new video card and I am wondering if vtkGPUVolumeRayCastMapper supports it. </div>
<div><br></div><div>I have the following configuration of the mapper: </div><div><br></div><div>
<div>vtkSmartPointer<vtkGPUVolumeRayCastMapper> dcmMapper = vtkSmartPointer<vtkGPUVolumeRayCastMapper>::New(); </div><div>dcmMapper->SetMaxMemoryInBytes(536870912); </div><div>dcmMapper->SetMaxMemoryFraction(0.75);<span style="white-space:pre-wrap"> </span>// trigger GPU </div>
<div>dcmMapper->SetAutoAdjustSampleDistances(1); // KEY to GPU - Composite</div><div>dcmMapper->SetBlendModeToComposite();</div><div>dcmMapper->SetInputConnection(dcmVoi->GetOutputPort());</div></div><div><br>
</div><div>But the application crashes with the following message: </div><div><br></div><div>Assertion failed: "pre: valid_point_extent" && (this->CellFlag || (textureExtent[0]<textureExtent[1] && textureExtent[2]textureExtent[3] && textureExtent[4]<textureExtent[5]))), file ..\..\vtk-5.8.0\VolumeRendering\vtkOpenGLGPUVolumeRayCastMapper.cxx, line 3089"</div>
<div><br></div><div>This is very confusing. When I read the documentation it suggests that the data set is to large for the video card. </div><div><br></div><div>But its a data set I can load on a QuadroFX 3700 with 512MB. This card (FirePro V7900) has 2GB of video RAM (although for testing I only call 512MB) . </div>
<div><br></div><div>Any suggestions on what I may be doing wrong? Are FirePro video cards supported by VTK for volume rendering? </div><div><br></div><div>Thank you, </div><span class="HOEnZb"><font color="#888888"><div>
<br></div><div>Sergio </div>
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