Two viewports rendering different camera views at same?

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samoctane
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Joined: Wed Feb 10, 2010 4:27 pm

Hi,

Is there a way I can setup two card's to render the same scene simultaneously but from different camera positions, so that if I update one scene,
the scene in the other viewport follows suit.

A bit like having the Left and Perspective Camera viewports active in Max/Maya - but with full path tracing. :)
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ROUBAL
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Is it for stereoscopic rendering ?

Currently, I only see two possibilities, but you have to make a choice : if you want to load the scene or update it only one time, then render two times, one for each camera, or open two instances of Octane an render with one camera on one istance and one camera on the other. If you have two GPUs for rendering, each instance can have its onw GPU.

This said, none of this method will allow again of render time.

I don't know how to use the command line, and maybe there is a solution, but I can't see it.

If it is for a stereoscopic animation, I would render for my own in two passes : generating one serie of images for each eye at a time.
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samoctane
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Roubal, thanks for your reply.

No, it's not for stereoscopic rendering - it's just for a specific project - I need to render two viewpoints ( in real time) of the same scene and record the output of both cameras - I was going to use Fraps for the screen recording - it sounds from your reply like this might be possible.
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t_3
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2 (or more instances) of octane are only a question of gpu power; would be even possible with a single card, since the cuda driver equally shares resources between cuda clients.

only problem is to sync cameras. the closest what i can think of is having a spacepilot, which sends commands to both windows, but afaik it will only use the active window. another more advanced solution would require some sort of scripting to send mouse commands to both windows...
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stratified
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samoctane wrote:Hi,

Is there a way I can setup two card's to render the same scene simultaneously but from different camera positions, so that if I update one scene,
the scene in the other viewport follows suit.

A bit like having the Left and Perspective Camera viewports active in Max/Maya - but with full path tracing. :)
We're working on something to render a scene from multiple viewpoints simultaneously. It shouldn't be too long anymore.

Cheers,
Thomas
samoctane
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Posts: 12
Joined: Wed Feb 10, 2010 4:27 pm

We're working on something to render a scene from multiple viewpoints simultaneously. It shouldn't be too long anymore.
Thanks Thomas - that sounds brilliant!
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