<div>Hi all,</div>
<div> </div>
<div>I am trying to do a volume rendering of a large data set. I has a group of points, each point defined by : a position [ X, Y, Z ] and a Scalar. </div>
<div>The implemented volume rendering techniques (RayCast,..) require a structured grid or an unstructured grid as input. </div>
<div> </div>
<div>For this purpose, I tried different ways :</div>
<div> </div>
<div>1) Cloud Points -> PolyData -> DataSetTriangleFilter </div>
<div> </div>
<div>Problem : No data on the screen ! </div>
<div> </div>
<div>errors like : </div>
<div>- Input contains more than tetrahedra - only tetrahedra are supported </div>
<div>or</div>
<div>- Degenerate topology cell face used more than twice</div>
<div> </div>
<div>2) build directly an UnstructuredGrid (with only Tetrahedra)</div>
<div> </div>
<div>
<div>Problem : No data on the screen ! </div></div>
<div> </div>
<div> </div>
<div>Please let me know the correct / best way to do this.</div>
<div> </div>
<div>Thanks in advance,</div>
<div>Amine</div>
<div> </div>