No flickering animation settings?

[branskyj]

Hi all,

I am about to render an animation using Irradiance Map (primary)and Light Cache (secondary). It is a 30 seconds animation and even though I reduced the quality settings significantly each frame takes about 6 min. But I am not concerned about the overall quality, I am concered about flickering. As I found online in my VRay settings I need:

1. To tick the "use camera path" checkbox for both IM and LC

2.Set the IM mode to "Animation Rendering" and LC mode to "single frame"

3. Set the IM preset to Medium/High Animation

 

What else am I missing in the settings?

I tried assigning a grey colour to each object (except for the windows) but rendering times are still high- 3 min for each frame.

 

Thanks for the help.

[Ricardo Eloy]

Ok, a few things:

- in case your animation has moving objects, you first have to calculate the IrrMap for all frames using the Animation (pre-pass) method, and only then you can render it using the Animation (Rendering) method. GI won't be any faster, but you can rest assured there won't be any flickering.

- but, if nothing moves in your animation but the camera (fly-through), you should set LC to Fly-through mode and the IrrMap to Multiframe Incremental. That will calculate GI a lot faster. Maybe not rocket fast, but helps.

[branskyj]

Thanks Ricardo, my animation indeed has mooving objects.

But what if I am using 3 PCs to do the whole rendering. How do I save the Irradiance map so that it is usable by all PCs? Do I just copy/paste it to the rest PCs in the same folders as the workstation PC?

REally sorry to be such a pain, its just that the whole rendering process will take about 2 days and it will be a shame to do the whole thing again and again.

 

Cheers.

 

P.S. Never mind. I found another related topic here in cgarchitect with a useful link.

Cheers mate.

Edited March 14, 2011 by branskyj

[aristocratic3d]

please post the link to that thread. it will help us to learn.

[branskyj]

Sure thing aristocratic3d,

the cgarchitect link is http://forums.cgarchitect.com/28686-new-v-ray-irradiance-map-animations-2.html

And the useful link is on page 2 in the middle http://www.trinity3d.com/tutorials/vray/blending_irradiance_maps/index.shtml

Hope it helps.