Classification: UNCLASSIFIED Caveats: NONE I am working on a CTH dataset with 1024 spcth files. I'm able to extract 8 CTH parts using the "CTH Extract Parts" filter and things work reasonably well. In client-server mode, I'm able to interact with the data, rotate, translate, scale, etc without any noticeable performance issues. By default, I have distributed rendering enabled and the interactive performance is good.
However, if I enable opacity on any of those CTH parts that I extract, interactive performance drops to the point of being unusable. Once enabled, it takes about 10 minutes for ParaView to update the GL window. I've tried diddling with the render window settings - such totally disabling distributed rendering, but it doesn't seem to make any difference on the performance with opacity. I've also saved out animations of this dataset and use the "disconnect" feature. Without opacity enabled, I can march through time at something slightly less than 1 timestep/minute running in disconnected batch mode. With opacity enabled on any one of the parts, it takes ~10 minutes/timestep. On the server side, I have paraview 4.0.1 built with the OSMesa library that's downloaded as part of the superbuild. I'm assuming that opacity should not totally destroy performance as we're seeing. There are other packages that we use in client-server mode with opacity that show no noticeable performance degradation when using opacity. Thanks ________________________________ Rick Angelini USArmy Research Laboratory CISD/HPC Architectures Team Building 120 Cube 315 Phone: 410-278-6266 Classification: UNCLASSIFIED Caveats: NONE
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