OTOY Forums

Hi Everyone,
I'm experiencing a strange problem.
I'm rendering a small looping animation in Octane where 2 robotic arms takes objects from a moving platform and then put them back on this table again.
Arms uses bones and IK for deformations, but the geometry is the same during the entire animation.
I have motion blur activated for ALL and I Update the whole scene for every frame.
Rendering process is working fine and renders are perfect but...
Render time increases along with the frame number.
I mean: frame 1 renders in 7 minutes, frame 20 renders in 10 minutes .... frame 168 is rendering in about 18 minutes.....
Any suggestion?

Thank you for your help and sorry for my English!

And what happens if you render only the frame 168? Is it rendered in only 7 min. like the frame 1?

If you want to send me the scene I could test i here. Also the log files can be useful to know more details about the scene extraction and render times.

Thanks,
-Juanjo

Thank you for your fast reply juanjgon!

I've tested with a two frames animation (from 167 to 168) and i get the same render time , about 18 min.)

This happens using single frame render (F9) or animation render (F10).
Using animation range (with F10) takes a long time for preparation and I can see a slowdown even in this process (starts processing fast then slows down)

Could it be the IK ? I don't have this kind of problem with standard animations (ie: without IK).

Maybe is not a Octane problem but a Lightwave issue. Saving animation with IK enabled takes forever sometime ..

It is hard to say without the scene. The problem can be the longer extraction time related to the Layout IK, the scene pre-processing time or the render time itself. Sometimes if the the mesh is too dense, Octane needs more time to pre-process the scene if the motion blur is enabled.

Are you working with subd surfaces? Perhaps you could try to use a lower subdivision level for render to see what happens.

-Juanjo