stereo camera and irradiance map prepass

[ricorio]

Hi,

how does vray handle the .vrmap prepass when rendering a stereo pair in maya?
I got 2 render layers:

First one calculates the prepass.
Second one does the rendering.

Sine there is teh same file name specified in the .vrmap when calculating the GI for left and right cam I guess when calculating the second cam it just overwrites the the one calculated before?!?
Or is it appending the right cam to the left?

Thanks for the info.

Greets

Rico

[tashko.zashev]

Hi,

Sine there is teh same file name specified in the .vrmap when calculating the GI for left and right cam I guess when calculating the second cam it just overwrites the the one calculated before?!?

Yes, this will happen if you render both cameras at ones. Depending on the scene you could use different workflows.
One might be to render and store GI prepasses using large camera FOV, that covers the view from both eyes (cameras). At the end you will have one Vrmap for both views.
Other approach could be to precaclulate the GI first for the left camera and then for the right camera view.

There is a possibility to add V-Ray stereoscopic helper to this workflow and optimize the process.