Memory management ?

[Monkeyfarm]

I've got a question about how ZB manages memory.

Let's say I load a high poly tool. Place it on the canvas. Load a few more high poly tools and do the same.

They are now all "stamped" into the canvas, but all of them are still in the TOOL pallet. since they are still there, are they still in ZB's memory as well, or does ZB read the tool's geometry from disk when you draw it on the canvas?

[Mahlikus The Black]

I assume it uses some memory for it because after a while (and several tools/textures later, ZB starts to drag butt, or shall I say my comp does. Aside from that, I know nothing of the specifics.

[kokoro]

i think they stick in the memory - for when i do 9 layers or so , i need about 400mb ram, then load a few highpoly tools and then i cannot add anymore a layer without zbrush building up virtuel mem. quitting and restarting the project lets me add new layers in the actual ram.