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Scanned Stuff with Clarisse PBR - Siggraph Special

Finished work (VFX, animation, print...) made with Clarisse.

Re: Scanned Stuff with Clarisse PBR - Siggraph Special

Unread postby xilofoton » Wed Sep 21, 2016 1:33 pm

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Re: Scanned Stuff with Clarisse PBR - Siggraph Special

Unread postby xilofoton » Mon Sep 26, 2016 7:34 am

Flo-mo, first take:
https://vimeo.com/184274866
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Re: Scanned Stuff with Clarisse PBR - Siggraph Special

Unread postby David_A » Mon Sep 26, 2016 8:31 am

Really cool xilofoton! Thanks for sharing

You said in the blog that you used a camera projection and that you'll be using an advanced version of the projection to render a small animation. Is this the animation? If it is, the results are just awesome!
Please, would you explain the approach of your camera mapping for that scene?
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Re: Scanned Stuff with Clarisse PBR - Siggraph Special

Unread postby xilofoton » Tue Sep 27, 2016 2:17 pm

Hi,

thanks! I plan to write a tutorial when I finish this project based on my consequences.

Answering your question I copypaste what I wrote earlier about this in a mail:

Now I`m experimenting with a light blending technique to render these scenes with considerable rendertimes for animation. Little bit similar to V-Ray`s light cache temporal interpolation, but in this case mostly for glossy reflections. While the not sharp, glossy reflections are halfway view-dependent, I can cheat to interpolate ie every 10 th frames and reproject them onto the geo, blending them together according to the actual time. This is not just nice for high quality, noise free defocus and quick rendertimes but also eliminates the flickering. And it is fun while materials like cobbles have, they are constructed by small crystals and other fractions that makes some kind of fireflies as I watch them in the reality... but not "one frame" flashes, if I move my head a few degree sideways, a kind of a gaussian like fade-in/fade-outs are there... so what I mean, I hope that at some point this technique can meet the nature of this materials with fast render speeds.

Now I switched to a more artist friendly way, I did testrenders with this technique, but It is too complicated to create each of these projection cameras and it makes the scene confusing. Maybe a script could help...
Now I simply rendered the sequence with a lower fps (0.4x24fps in this case) with low sampling and I retimed it with vector based retiming tool (Kronos in Nuke which is surprisingly good as you can see). This is much easier, you can easly iterate with different camera movements without relocate the projection cameras. I rendered the defocus in Nuke too with Z defocus, it works nicely with depth AOV. It is very handy to use it`s autofocus function. I could do the focus pulling work on the rendered sequence just picking on the area where I want the focus which is fun, and nice to animate it with the movement. This is a virtual cinematography :)
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Re: Scanned Stuff with Clarisse PBR - Siggraph Special

Unread postby David_A » Wed Sep 28, 2016 2:36 am

Thank you for the note!
Very clever :) And yes, the Kronos plug does a fantastic job as well.
I'll be looking for your lecture on the subject. It will be very interesting.
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