That sounds great Eric!
Thanks for the comparison numbers.

/Jens


On Thu, Dec 5, 2013 at 12:53 PM, Eric Mootz <[email protected]> wrote:

>  The memory consumption of emPolygonizer4 can grow quite fast. The more
> input particles and the higher the level of detail the more memory it will
> consume.
> emTopolizer2 however meshes things bit by bit which results in neglectable
> memory consumption no matter how your level of detail might look.
>
> So with heavy setups emPolygonizer4 can easily go up to 10 Gig and more of
> RAM whereas emTopolizer2 will only use a couple of hundred megabytes.
>
> Speed wise it depends a little on how the input looks like (amount of
> particles, spacial distribution, ..), but on average emTopolizer2 is *at
> least* twice as fast. In most cases it will be even 2-10 times faster.
> But in my opinion the speed is not as important as the memory consumption.
> Fact is that with emPolygonizer4 you will eventually have memory problems
> and with emTopolizer2 you won't.
>
> Here a concrete example that I just tested. Note the memory consumption.
>
> Hardware: Sony Vaio Laptop, Intel i7m, 8 Gig Ram.
> OS: Windows 7 64 bit.
> Software: SI 2012 SAP
>
>  *A.)* The input was a small liquid simulation with roughly 2000
> particles.
> The level of detail was set to 50, which resulted in a mesh with about 2.4
> million polygons.
>
> emPolygonizer4:
>   time: 30 seconds.
>   max. RAM: 2.6 Gig.
>
> emTopolizer2:
>   time: 10 seconds.
>    max. RAM: about 0.15 gig.
>
> *B.)* Same input, but this time with liquid filaments enabled which
> results in roughly 270000 particles.
> The level of detail was set to 50, which resulted in a mesh with about 1.5
> million polygons.
>
> emPolygonizer4:
>   time: 55 seconds.
>   max. RAM: 2.7 Gig.
>
> emTopolizer2:
>   time: 26 seconds.
>    max. RAM: about 0.2 gig.
>
>



-- 
Jens Lindgren
--------------------------
Lead Technical Director
Magoo 3D Studios <http://www.magoo3dstudios.com/>

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