We are having quite a few issues with v4.4.1 where we get excessive hanging at the end of a render and also various crashes. The scene is quite heavy with a lot of grasses and flowers and a few trees.
The RAM usage when rendering is beyond 20GB. What methods should we be using to reduce the amount of RAM? Are there some general tips? I had hoped that only the geometry in each bucket would be loaded into memory but given 20GB+ I am thinking not.
A checklist would be useful - for instance, is using VRay Proxies a good idea, or using Brute force, or IRmap better or worse.