BoB lighting capabilities. OpenGL and Direct X question. HDR/Caustics supported?

[Bulau]

I think even existing IL-2/FB/PF support bump-mapping, at least for terrain. You can see the effect when sun is low, and the texture map will generate shadows. The addition of self-shading to aircraft, IMO, would add significatly to realism.

I'm not sure where caustics might come into play in the sim, or if the performance price would be worth it. Radiosity (diffuse interreflection) would look nice, but again, at what cost performance wise?

I'm going to have to google HDR and see what that is.