unstructured volumes and quadrilateral faces that are not planar

[nastronaut]

Hello,

We have some datasets based on unstructured meshes that contain quadrilateral faces that are not planar. The non-planarity is worse than just a bit of floating-point fluff, they are obviously non-planar when we visualize the cells. How does OpenVKL deal with this issue, for example when computing samples? Does OpenVKL subdivide quads into two triangles? How does it choose the diagonal to use for each quad?

Thanks.

Patrick