RAM limit for 20 ani proxies 1.5GB each

[Morne]

Hi all

I have a scene with about 20 animated over 400 frame proxies, each instanced about 4 to 5 times, and each about 1.5GB each. Is there some kind of formula or something so I know beforehand if max/vray will crash during my render? My slaves have between 6GB and 16GB RAM

What I'm really asking is, do I need 20X1.5GB Ram to be able to render the scene?

[Morne]

nobody have an answer?

[vlado]

Since the proxies are animated, V-Ray won't really load the entire animation into memory - just the frames that it needs. So it won't be 20 x 1.5, but it's difficult to say what will be the final number. It would be best to do a few tests and note the memory usage.

Best regards,
Vlado

[Macker]

So just out of curiosity if you've offset some of the frames of instanced proxies; Vray has to load the proxy into memory again at the correct frame number?

So if you had a 10mb (when loaded to ram) animated proxy and you had 2 instances of it at different frames; you'd end up with 20mb of ram usage because it has to load it twice on separate frames?

[Macker]

Nobody know?

[Morne]

in my case I rendered the animation as mentioned above on a different setup. Old quadcore 9550 Intel with 8GB Ram. I didn't check the ram usage during render, but it rendered perfect and a frame took average 30min at 720p. (unfortunately I can't post a screenshot of it YET)

[vlado]

So if you had a 10mb (when loaded to ram) animated proxy and you had 2 instances of it at different frames; you'd end up with 20mb of ram usage because it has to load it twice on separate frames?

Yes, no way around that I'm afraid.

Best regards,
Vlado

[Macker]

Damn, what a shame. So I guess even with the likes of multiscatter/forest pack you'd likely run into RAM issues.