 | | | AA and motion blurring a depth pass or not (was RE: DOF and Depth Pass problem) | AA and motion blurring a depth pass or not (was RE: DOF and Depth Pass problem) 2005-03-22 - By Stuart Hall
Back
I did my own little test to try it out the theory.
There certainly is a difference. But as soon as motion blur comes into
the equation I wonder whether either way makes that much of a
difference.
Does anyone have any opinions on motion blurring a depth pass?
Cheers
Stu
-- --Original Message-- --
From: owner-xsi@(protected) [mailto:owner-xsi@(protected)] On Behalf
Of Raffaele "ThE_JacO" Fragapane
Sent: 22 March 2005 11:07
To: XSI@(protected)
Subject: RE: DOF and Depth Pass problem
For the record:
Often (especially with hairy creatures moving along the camera rays) one
channel of RGB proved to be not enough for us.
In that case you can use a ray distance to drive a Gradient going
through
RGB and output 16bitpc, that way you get 65k*3 shades if you properly
split
the colour channels in compositing later on.
You could also actually use 8bitpc output and create the whole 16 mills
palette, but the rendertree we used got complicated and prone to little
sampling glitches here and there.
Btw a depth pass is better off non antialiased, because the depth pass
will
be AAed and sampled differently from the beauty pass.
Rendering at doubled res without AA and resizing it down is a better
solution, or eventually render both the beauty and the depth pass with
non
adaptive AA (min and max levels are the same), it could still present
some
artifacts but not a fraction of what you'd get from AAAed Beauty + AAAed
Depth.
~Raffaele Fragapane
~Lead "I'm sure we can make it work"
~Peerless Camera Company
-- --Original Message-- --
From: owner-xsi@(protected) [mailto:owner-xsi@(protected)] On Behalf
Of
Stuart Hall
Sent: Tuesday, March 22, 2005 11:59 AM
To: XSI@(protected)
Subject: RE: DOF and Depth Pass problem
On a completely different tack, I prefer to render out a separate depth
pass as a 16-bit SGI because it is anti-aliased and can have motion
blur. It doesn't take long and if the animation doesn't change it only
has to be done the once.
Just a thought.
Stu
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.799 / Virus Database: 543 - Release Date: 19-Nov-04 (See http://Nov-04.ora-code.com)
---
Unsubscribe? Mail Majordomo@(protected) with the following text in
body:
unsubscribe xsi
---
Unsubscribe? Mail Majordomo@(protected) with the following text in body:
unsubscribe xsi
|
|
|