AC6 renders its cloud/smoke/explosion chain into half-res buffers, which look
soft once the world is upscaled. Re-register those buffers at 1280x720 and 1x
instead of 640x360 and 4x MSAA, the same EDRAM tiles, so nothing downstream moves,
plus the pool reserve, compositor inputs and module viewport the enlarged chain
needs, and keep the fixed 2:1 silhouette downscaler at its native size so its
baked x2 cannot wrap. cvar: ac6_fullres_effects, off by default.
- Resolve merge conflicts in CMakeLists.txt, .gitignore, and all src/ files,
keeping the HEAD (native renderer) versions throughout
- Remove stale SDK alternate-tree ref (rexglue-sdk~6e0ca2f) from index
- Drop scratch files: 'New Text Document.txt', *.bak
- Rewrite README with full setup instructions, prereqs table, build
preset table, run command, project layout overview, and Linux section
Dipshet