Some Notes on DOPs
eharetea

Some Notes taken at a DOPs lecture given by Craig Zerouni, as well as various DOPs hip files.

Great DOPs notes and hip files.

Date Created:Sunday March 11th, 2007 10:54 PM
Date Modified:Saturday August 02nd, 2008 04:45 PM

THREE FORCES Stretch, Shear, Bend
FORCE MODEL TAB IN A CLOTH OBJECT
think of
Cloth pieces stretching
cloth pieces shearing
Cloth pieces bending

The Amount of damping
higher damping less vibration

the amount of strength
higher more resistant to stetch, shear or bend


$SF simulation frames


On a cloth stitch constraint, Anchors Tab
Change Goal Anchor to "Points on Same Cloth Object Geometry"
Specify two Groups, cloth point group, and goal point group
then in relationship tab, change type to two state contraint


Two State Max Force, once becomes hard contraint, threshold for keeping it that type,
higher number helps keep it the type that it becomes.


CLOTH OBJECT
it can inherit attributes for its behavior in dops from sops
check out the attributes
hdox://houdini/content/helpcards/dop/clothobject.xml

you can create repeating creation of dopjects
by putting this in a creation frame:
if($F%50==1, $F, 0)

Density is important when you want to have objects bouncing or interacting with cloth

CLOTH STITCH CONTSTRAINT/CLOTH CONTRAINT
using two state containt
initial being spring
set spring strength to zero and state max force to 300000
then drop an rbd ball onto it, it should break and fall nicely



Downloads:
Download: cloth_and_pop_solvers_start.hipnc 621 KB
Download: dentpop.otl 4.34 MB
Download: dopsplay.hipnc 501 KB
Download: tube.hipnc 238 KB

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Some Notes on DOPs by Dan Lynch
is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License
Based on a work at www.3daet.com
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