Working on a template to have transparent blocks switched on and off.
Used “Animation Nodes” to create the grid. Because “Animation Node” does not support material instances I created two identical grids with an “OnMaterial” and an “OffMaterial” for each. So I switch the object visibility on an off using some modulo and integer math.
The colors are managed by setting the vertex color of each object based on its loop index.
@m_squared: Thanks for your advice. I kept the environment dark and decent to avoid distracting attention from the emitting objects. I’ll give it a try and see if I can find some HDRIs that fit to the scene.