Hi, I have a weird issue with H16 (build 550), windows 7.

Rendering with the Bake Texture ROP makes mantra
eat all my ram (32Go).

Steps:

Create any test geo
Create Camera
Create Bake Texture ROP
Set resolution to 2048*2048 (the issue occurs even with smaller res)
Render to Mplay
Watch Mantra eat way too much ram via Windows Task Manager.

Mantra uses about 32Go in a minute or so(increase pixel samples to increase render time)

It didn't happen at all in H15.

Anyone else has this issue?

Hi. There was an issue with dicing of objects that relied on render camera transform. This is now fixed. Please try the upcoming daily build and let us know if you still see the issue.

I just tried the latest build (557), still have the issue.

561 didn't fix it either, in case anyone's wondering.

Ah, we identified the issue - we're working on a solution.

The fix will be part of tonight's daily build. Thank you.

Great news, thank you!

Hi,

I have tested the new build.

563 is slightly better, but nowhere near “normal”.

For a 1024*1024 (6 pixel samples):

H15: 300Mo used
H16 (561): 11Go used
H16 (563): 8Go used

That does sound abnormal - and I can't reproduce the problem on my end. Can you attach the .hip you're using?
Thanks.

The steps to recreate the scene file:

Create the Rubber Toy test geometry
Ctrl click to create a Camera
Create a BakeTexture ROP
Set UV object to geo1
Set Pixel samples to 6*6

It seems like mantra will keep on using RAM until the render ends, or Windows fails, whichever comes first.

When I try this file on a low end laptop (i3 with 6Go RAM), Windows fail due to RAM usage (BSOD).


Also, it seems like the RAM usage depends on how much RAM is installed. For example, with 32Go, it takes 8Go over 1 minute.
With 6Go, mantra uses 5ish Go over 3-4 minutes.

Ah, this issue seems to be exclusive to Windows.
It may be unrelated to the issue that was addressed in build 563.
Still investigating…

Hi I hit the same issue on windows

The fix is in the upcoming daily build. Thank you.

The issue is fixed with 569. Thank you very much.