Commit Graph

2 Commits

Author SHA1 Message Date
lawnjelly
2c88517a7b Portals - fix recursive loop looking out from internal rooms
In some situations looking out from an internal room it was possible to look back into the portal into the internal room.

This PR fixes this by keeping a single item 'stack' record of the last external room, and preventing recursing into this room. This also makes tracing significantly more efficient out of internal rooms, as there is no need to trace the external room multiple times.
2021-08-05 12:37:05 +01:00
lawnjelly
eb6f98ec55 Portal occlusion culling
Adds support for occlusion culling via rooms and portals.
2021-07-14 11:43:23 +01:00