Still has some artifacts, but is generally rather close. Will look at
this again when caching studio model BLASes, as we'd be able to look at
them without extra animations.
Consolidate VkCommandBuffer management into a single entity. (somewhat
done for framectl, not done for staging)
Make sure that we pass enough metadata to be able to timestamp scopes in
cmdbuf.
It does compile, but it won't work: not all init code paths are used.
Also, there are many changes, so other failure modes are totally
possible.
Fixes#330
Also, fix incorrect patch application introduced by previous commit, it
would not read the patch color value, and could only switch the light
off.
Do not entangle brush model loading with loading surface lights.
Do a separate pass over brush model surfaces for the sole purpose of
finding light sources. Enables consistent live-reloading light data
after patching entities/surface/rad files.
Instead of passing model color around as an implicit global state, pass it per-model.
This makes it (a) easier to track, (b) easy to fix blending issues. E.g. this fixes incorrect coloring of brush and studio models, which is also different.