VTK::RenderingCellGrid

This module adds support for rendering and hardware-selection of vtkCellGrid data. Currently, surface (but not volume) rendering is supported; this means that surfaces of cells may be rendered and they may be colored and semi-transparent, but that functions defined over volumetric cells will not affect the attenuation, coloring, or scattering of light interior to the cell.

The rendering technique uses the VTK::RenderingOpenGL2 module’s vtkDrawTexturedElements class to upload array data as textures and use it to determine the location, tessellation subdivision, and color of triangle vertices and their resulting fragments.