I'm rendering with Cycles in the viewport (not with F12) and would like to get that viewport output as an input node into the Compositor.
How can this be done?
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$\begingroup$ I think the best you can do is take a screenshot and load that in. $\endgroup$– gandalf3Commented Sep 5, 2013 at 20:20
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$\begingroup$ This is not the expected workflow. Why are you not using the standard method of rendering? $\endgroup$– AldrikCommented Sep 9, 2013 at 19:19
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3 Answers
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Well there is a way but it really is a cart before the horse thing. If you really need the image you can only get it by a screenshot, which will be limited to an 8 bit depth and the size of your viewport, obviously.
When it is saved you can then use a file node to import it into the node editor. As I said this is a nuts way to do it but it can be done.
Don't do it though use F12.
A Wild RolandiXor Has Appeared
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answered Sep 9, 2013 at 7:08
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As far as I know you can't, the viewport rendering is just used as a preview as you develop shaders and lighting.
The way you get the output is from a full (F12) render, then in the compositor:
- Shift+A
- Input > Render Layers
answered Sep 5, 2013 at 16:26
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$\begingroup$ That's bad luck, but thank you very much for the quick answers. I guess I'll have to stick with the screenshot advice, for it being much quicker. $\endgroup$ Commented Sep 6, 2013 at 13:50
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1$\begingroup$ @michael-kiss Don't really see how a screenshot could be quicker than a render as long as you render the same number of samples and at lower quality... $\endgroup$ Commented Sep 6, 2013 at 14:55
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You can't, because the viewport render is only a preview. In fact, you shouldn't rely on the viewport for determining the final output, actually, because it doesn't represent an accurate view of what the final render will be and wasn't meant for that purpose.
answered Sep 5, 2013 at 17:49
A Wild RolandiXor Has AppearedA Wild RolandiXor Has Appeared
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$\begingroup$ At the moment it is no problem for me to do the compositing with a rough preview. For final production I surely will use F12 Render $\endgroup$ Commented Sep 6, 2013 at 14:04
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2$\begingroup$ @michael-kiss You can render "rough previews" with F12 just as well as with the viewport render. see this question and [this thread on BA](blenderartists.org/forum/archive/index.php/t-256523.html) (it seems BA is currently down, so here is a cached version) $\endgroup$– gandalf3Commented Sep 9, 2013 at 19:08