Upper bound on structuredRegular volume dimensions? #20
Description
Hello,
I am attempting to render an isosurface in a 5120^3 structuredRegular volume on OSPRay. The volume has a scalar field where the data are provided by floats (doing the math, that's half a terabyte of data). I use mmap since I do not have half a terabyte of CPU memory. When I render I see artifacts where it appears blocks are missing or are rendered differently at the high end of the X and Y dimensions (the more rapidly changing dimensions in my data object). Is there an upper bound on how large the dimensions can be in a structuredRegular volume? I could not find such a bound in the OpenVKL or OSPRay docs.
The attached image is from an early time step in the simulation. The isosurface should have a relatively uniform texture across the domain in X and Y. If I down sample the data to 1024^3 and render that I do get a relatively uniform isosurface.
Thanks,
Patrick
