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 class="Apple-tab-span" style="white-space:pre"> </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><div><br></div><div>Sergio </div>