Instance Time Offset / Primitive intrinsic

[galleon27]

Hello, a while back you added support for primitive "filenames" and "index" intrinsic attributes which meant that it was finally possible to time offset animated instances.
It works but i'm not sure that is work properly. Here you claim that the VRAM for one item should be about the same as for all instances, but i'm just not getting that.

VRAM usage is the same as when its unpacked BUT the loading times are there. It loads significantly faster than when it's unpacked.

Here you can see that a single item and instances have the same usage (2627mb)

Time offsetting yields the same as unpacked. (3565mb)

time offset instances

unpacked

Am i missing something?

I've attached the file without the cashed geo since its larger than the maximum allowed size. You can cache it yourself.
Or you can download it from Here with the cached geo.

[dom_otoy]

Hello, a while back you added support for primitive "filenames" and "index" intrinsic attributes which meant that it was finally possible to time offset animated instances.
It works but i'm not sure that is work properly. Here you claim that the VRAM for one item should be about the same as for all instances, but i'm just not getting that.

VRAM usage is the same as when its unpacked BUT the loading times are there. It loads significantly faster than when it's unpacked.

Here you can see that a single item and instances have the same usage (2627mb)

Screenshot 2025-05-09 155034.png
Screenshot 2025-05-09 155052.png



Time offsetting yields the same as unpacked. (3565mb)
Screenshot 2025-05-09 155114.png
Screenshot 2025-05-09 155253.png



Am i missing something?

I've attached the file without the cashed geo since its larger than the maximum allowed size. You can cache it yourself.
Or you can download it from Here with the cached geo.

Hey galleon27!
Sorry for the delay in response!
So the thing is that octane only loads the geo of the CURRENT FRAME into the GPU, not the WHOLE frame range of the instances. So if every instance is at a different time offset there is no benefit to be had.
But as soon as multiple instances are on the same frame, then you get memory benefits.

Hope that makes sense!

[galleon27]

Makes sense. Thanks for the info