Using Background Texture for DOF


https://forum.reallusion.com/Topic370235.aspx
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By sonic7 - 7 Years Ago

Here's an 8 second shot of a "camera move"
done in iClone.
The background - is a *video* (of 
lights clamped to a metal truss) 'behind' the Avatar.
In particular watch the changing focus on the lights as the camera moves towards the Avatar.
Please comment on this 'test shot' - is it 'believable'? (Video & Photo experts?) - I'm chasing 'realism'.
Steve.
(Play FULL Screen  ---  no audio).


By hcameron90 - 7 Years Ago
Did you render this all in iclone alone?
By sonic7 - 7 Years Ago

Hi hcameron90 ...

Only the background video was rendered outside of iClone.
(That was done by 'rendering out' iClone's camera motion of only the B/G lights ....  - then importing that video into Fusion 9 (free version) to apply the 'defocus' ).
The reason? Fusion can do a proper 'defocus' which is what *truly* happens to background objects in such a shot.
(There's a 'difference' between 'defocus' and 'blur' as I've recently found out - Thanks to Mark @ illusionLAB).
So this is a 'compromise' solution which 'gets around' the fact that 'true defocus' can't be achieved in iClone atm.
Steve.

EDIT: But once the Fusion 'defocus video' was placed as a 'background' in the shot, iClone did the entire composite 'render' (using 'Preview' mode, and with a 0.8 strength iClone 'blur' - which subtly blurs the entire scene (both avatar foreground + Video background). This removes any 'jagged' edges and helps 'blend' the composite shot.... 

By TonyDPrime - 7 Years Ago
I think everything across the board looks very real.  If I wasn't a 3d person, and just a shlup off the street without an eye for the stuff, I would mistake it for real, potentially.
Very good indeed!