E.g. add `desert.mat` alongside `desert.ktx2` (or
`desrt_{rt,lf,...}.png` files) with the following contents:
```
exposure 0.3
```
Skybox texture color will be multiplied by this value.
Fixes a typo that rewrote roughness value with garbage.
Also adds a few more debug channel displays for lighting phases. And
prints out available debug displays.
Fixes#641
They are not used by anything yet.
Fallback to generating regular noise textures if bluenoise ones weren't
found.
Real blue noise textures require Half-Life-PBR repo textures.
The intent is to manage long-vs-single-frame allocations better.
Previously long allocations were map-long bump allocations, and couldn't be freed
mid-map, as there was neither a reference to the allocated range, nor a
way to actully free it.
Add a two-mode block allocator (similar to previous debuffer alloc) that
allows making long and once allocations. But now long allocations are
backed by "pool" allocator and return references to the range.
This commit doesn't do the deallocation yet, so map chaning doesn't yet
work.
Known issues:
- apparently BLEND_MIX surfaces should also participate in lighting. Figure out how.
- sensitive to ray tracing order. Need proper OIT (or hacks)
They have mismatching frequencies. ModelMetadata should be per-Model, there should be only a few dozen of these.
There maybe hundreds (or even thousands) of materials, but one material can be still referenced by many kusochki.
This only moves fields into new structs, which still belong to Kusok. The real extraction will happen later, see #52.
Ivan Avdeev
Ivan 'provod' Avdeev