[Sidefx-houdini-list] uv transformation - motion blur

Robert Persons robert at adtechinc.com
Wed Mar 11 14:46:55 EDT 2015


Wouldn't selecting "Deformation Motion Blur" on the geometry take into
account the movement of the texture?  Not sure, but worth a try.



Robert Persons
Adtech Communications Group
8220 Commonwealth Drive, #201
Eden Prairie, MN  55344

-----Original Message-----
From: sidefx-houdini-list-bounces at sidefx.com
[mailto:sidefx-houdini-list-bounces at sidefx.com] On Behalf Of Larry Giunta
Sent: Wednesday, March 11, 2015 1:29 PM
To: sidefx-houdini-list at sidefx.com
Subject: [Sidefx-houdini-list] uv transformation - motion blur

Hello all, 

I wonder if I'm overlooking a straight forward way to render a sliding
texture with motion blur?

I'm working on a shot for a spot where the paper/tape of an adding machine
needs to flow out quickly .. but in stops and starts.

I could use a creeping surface so I can compute velocity.. 
But sliding the UVs feels a lot lighter and quicker to work with.

Just not exactly sure how to convert that motion into some velocity value
that mantra will recognize.

I've addressed this issue in the past ( in a crunch ) just by blurring the
texture horizontally.
But the required stops and start in the paper flow here make that a bit more
cumbersome to deal with.

Anyway .. thanks as always for any thoughts.


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