I am currently trying to visualise a pretty large 3D dataset from a serial sectioning experiment using paraview (please note I am using version 5.4.1. as could not find a way to untick “map scalars” in new version). I am using a new MacBook Pro 2020 with 16GB memory and Intel Iris plus graphics 1536 MB. The dataset contains 271,000,000 cells!! It is a dream3D HDF5 file and contains a number of different data arrays, I have managed to compress the total file size down to ~5GB by getting rid of unrequired data arrays but cannot shrink it further. When manipulating the data (e.g. clipping, slicing) it is incredibly slow and can take up to 15 minutes to render the volume, the process bar gets stuck on “Geometry representation with faces” for ages.
My question is, is there anything I can do to speed up the volume rendering such as resampling the data? Or do I simply need to use a more powerful computer?