On Thu, 22 Feb 2007, Kim Aldis wrote:
-----Original Message-----
From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On
Behalf Of Andreas Bystrom
Sent: 22 February 2007 13:25
To: XSI(at)Softimage.COM
Subject: Re: 16bit Zdepth?
grab a scalar-state, plug that into a change_range node and finally
plug the change_range into the surface port, leave the scalar-state
settings as it is and set the "new range start" to 0 and "new range
end" to 1 in the change range node, your old and new-range parameters
should be set to the distance where you want the depth-pass to start
and end, you can link these 2 values to nulls with an expression and
use those to control the depth-pass
You may also find that a linear falloff isn't necessarily what you need.
Plugging the output of the change range into a grad will allow you to tweak
it, if you need to.
I think the non-linear mapping would be better done in the compositor,
though. That way you have the option of linear or putting a curve on it.
--
Joe Laffey | Visual Effects for Film and Video
LAFFEY Computer Imaging | -------------------------------------
St. Louis, MO | Show Reel http://LAFFEY.tv/?e04685
USA | -------------------------------------
. | -*- Digital Fusion Plugins -*-
--------------------------------------------------------------------------
Mail here will be rejected --> "Real Trap" <r_trap(at)laffeycomputer.com>
---
Unsubscribe? Mail Majordomo(at)Softimage.COM with the following text in body:
unsubscribe xsi
