Volume Representation Clips when thin axis is scaled
When the thin axis of a volume is scaled, the volume rendering will clip off parts of the volume at some angles (possibly when the scaled axis is close to parallel with the camera?).
- Open a 3D image dataset (Uniform Rectilinear Grid) of points
- The dataset should have one thin dimension (e.g., 600x600x30, for NetCDF weather data)
- Or, clip a cubic volume to get a 10% slice (produces a different kind of visual artifact)
- Assuming that Z is the thin axis for remaining repro case.
- Choose the appropriate scalar variable
- Choose Representation: Volume
- Set the Z component of Transforming / Scale to 10 (other dimension's scale stay at 1)
- Click the Z-align view (either +Z or -Z)
- Rotate the volume slightly off the Z axis.
- For the thin image data, the results should be the edges of the volume are clipped.
- For the clipped cubic volume, the visual result are a 'dirtier' version, with clipped edges, but also filled with black dots and lines obscuring the image.
- Found in multiple builds in the v5.x series (v5.1.2, v5.3.0, v5.4.1)
- Last tested with Kitware build of ParaView-SC17-5.5.preview-Qt5-MPI-Linus-64bit
Example images attached.ClippingExampleImages.zip