Im pretty new to forest pack and not sure what to expect in terms of resource useage but im maxing out 64gb RAM on a fairly simple scene (2 3 storey buildings) with some surrounding grass and trees.
Is this to be expected? It could be something in my file as the filesize of this scene is over 3.5gb but ive tried every method under the sun to reduce filesize.
Forest pack is not RAM hungry until you creating millions of instances. Check how many primitives unique.: and how many Instances: do you have in corona render scene stats.
I figured out the issue. For whatever reason displacement was set to 1px in the corona settings so it was eating all my ram. setting it to 2 halved ram useage.