I will have to have a look into that, i remember not using hdri for the game because you had to use deferred rendering for it, im currently using forward rendering which allows me to use hardware 8x msaa so im not even sure if i can save out hdri
Disadvantages of HDR
- Uses floating point render textures (rendering is slower and requires more VRAM)
- No hardware anti-aliasing support (but you can use an Anti-Aliasing post-processing effect to smooth out the edges)
- Not supported on all hardware