<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear all,<br><br>I have a big rectangular 3D field (few GB) sitting on a uniform grid (hdf5+xdmf reader, 3DCORECTMesh topology).<br>I would like to make a 3D volume rendering but only on a part of it as this scheme tries to show:<br>/------/<br>/-----/ |------/<br>| l-------/ |<br>|_______| / <br>This helps me to visualize something placed near the center… Unfortunately, a "clip" or an "extract subset" do not help me… <br><br>Actually, I already did this operation but with some tricky operations like putting the points of interest to zero directly in the hdf5 dataset…<br>(I did it serially, it took one night…). I am looking for a smarter way to do that…<br><br>Does anyone have an idea to do this? If it could also use the parallel feature of PV ;-)<br><br>Stephane<br><br>PS: this is not my first attempt, for example I tried with a custom filter: <br><a href="http://www.paraview.org/pipermail/paraview/2012-April/024738.html">http://www.paraview.org/pipermail/paraview/2012-April/024738.html</a></body></html>