Hi, in order to build the Point-cloud, Forest needs to get the geometry from the object.
In FP5 we used the render mesh, but this was forcing the proxy to load the full geometry from disk, causing a major slowdown in large scenes, and in fact defeating the purpose of proxies. This problem was reported from several users.
FP6 instead, uses the viewport geometry of the object. This is much more lighter and fixed the slowndown issue. But as side effect, the Point-cloud you get depends of the proxy settings.
We cannot use the proxy's point cloud because it's stored internally, and not exposed to other plugins.
Anyway, we have discussed this issue with the Corona guys, and they are willing to add an interface, so Forest can use their point-cloud.
But this may take some time, because requires changes both in Corona and Forest.