Working with offline baked lightmap for GI, going on web, we encountered the main issue: Data downloading.
We know that compression “destroy” the “gradient” inside a lightmap but there are some situation where compression could be a good friend.
We know for sure that BC6 could compress RGB Floating-Point (HDR and RGBM)
In addition, I find also this paper about RGBM-DXT5 compression
Do you think that could be put your roadmap?
BC6 could be a good first step
Reduce data downloading is one of the most important milestone I suppose.
Quality is amazing at current state of playcanvas
Now we need for more accessibility