Preparing scene for frame...

V-Ray V-Ray Common Render Theory
1

Hi.
I have a scene that took ages (in my opinion) to “Preparing scene for frame…”, no matter if I render normally in VFB or with VRT.

It´s a model with a car with approx 300.000 Polys and two lights. Shading is just a VRcarShader.

I wonder what Vray do in this time and if there is any possibility to fasten this process up.

Thanks,
Jens

2

its hard to say, perhaps if you have a lot of modifiers try collapsing them. Converting things to vray proxies also speed up translation time quite a bit.

3

Did you change the resolution of the flakes? If its too high it takes forever.

4

Hi.
Thank you both for the quick answeres!

@Morbid Angel
Good to know. But in this case proxies are not a solution, because i want to have it still tweakable.

@Zach Gray
You nailed it! I had the Flake map size on 8k. I thought it will be only an issue of RAM, and I have enough. But the conversion/prep time is awful then. Maybe I have to rethink my Carshader setup.

Thanks again!
Jens

5

I’ve not tried this, but could you have 2 low res flake sizes comped together, but with slightly different overall sizes/rotation so they don’t tile?

6

Hi.
Mhhh, it´s worth a try.

J.