RT GPU DoF

[nickjamesgordon]

Thanks Vladimir, DoF and Cuda all working well thanks.

Just a general question, launching a render in standalone always takes longer than rendering with RT GPU within Modo.
I imagine this is not surprising, if it's loading everything onto the GPU.

Are there any suggested ways to optimise? Rendering an animation for example seems to take time loading scene per frame...

Best,

Nick

[vladimir.nedev]

It takes more time because a .vrscene file with the whole animation needs to be written out to disk.
And then read back by Standalone on each frame.

If you have non-animated Replicators you can mark them as such, which will make the .vrscene smaller for an animation.

Also, you can enable V-Ray subdivision on your meshes. This will cause only the mesh cage to be written to the .vrscene.
If you have deforming meshes in an animation, this can save a lot of time. Note that the V-Ray Subdivision might give you slightly different results.

Greetings,
Vladimir Nedev

[aluxado]

Thanks Vladimir, the DOF working good again on GPU on Mac Os!

[nickjamesgordon]

Hi,

Is this loading from disk then, as opposed to the scene held in memory within Modo?
If so I guess a faster SSD would help speed up the loading time?

It takes more time because a .vrscene file with the whole animation needs to be written out to disk.
And then read back by Standalone on each frame.

If you have non-animated Replicators you can mark them as such, which will make the .vrscene smaller for an animation.

Also, you can enable V-Ray subdivision on your meshes. This will cause only the mesh cage to be written to the .vrscene.
If you have deforming meshes in an animation, this can save a lot of time. Note that the V-Ray Subdivision might give you slightly different results.

Greetings,
Vladimir Nedev

[vladimir.nedev]

Hi,

Is this loading from disk then, as opposed to the scene held in memory within Modo?
If so I guess a faster SSD would help speed up the loading time?

Maybe, can't say for sure.
Is it really slow ? How big is the .vrscene that gets exported ?

Greetings,
Vladimir Nedev

[nickjamesgordon]

It's not slow! But rendering animations, so trying to get each frame done as quickly as possible.
I saw someone mention 'split-rendering' in a facebook group.

Could I fire up several V-ray standalone renders, for each GPU on one machine?

Best,

Nick

[vladimir.nedev]

Yes, just modify the CUDA devices before starting the render.

Greetings,
Vladimir Nedev