Am 08.09.2010 12:55, schrieb Le_Forgeron:
>>
>> My question is: is it possible to "clone" a complex object heirarchy so that
>> multiple copies can be utilised without significant memory overheads? If so,
>> how? Trawling through the documentation didn't show up anything obvious.
>>
>
> Current answer: no.
> Duplication at low memory cost is done so far only for mesh

... and blobs. (And IIRC one or two other such "bulk" objects.)

However, even for those objects there is some duplicated overhead, and 
only the actual "bulk" data is shared.

Another thing these have in common is a special internal bounding 
mechanism. CSG objects don't have that - their children are currently 
hooked up into the global bounding hierarchy instead, which requites 
absolute coordinates and a one-to-one mapping of bounding boxes to 
objects, and therefore doesn't allow for sharing of member data among 
two CSG objects.

Post a reply to this message