9

Cloth Modifier 581
Cloth Properties group, choose Cloth. Also set
UBendto500.0.
This sets V Bend also to 500.0 automatical ly.
UsinghighBendvaluesallowsthesimulation
to proceed more quickly.
Next, you’ll set different Keep Shape properties
separately for each object.
8. Highlight the reverse shape object in the list and
set the Bend % value to -100.0.
Note: The default value was 100.0.
9. Click OK to exit the dialog.
10. Select the don’t keep shape object and note that
Object rollout > Selected Objects Manip group
> Use Target State is off.
11. Select both the reverse shape and the keep shape
objects, but not don’t keep shape, and then turn
on Use Target State.
12. On the Object rollout, click Simulate Local.
After a few seconds, the don’t keep shape object
starts to flatten out, the keep shape object
doesn’t change, and the reverse shape object has,
in fact, reversed its shape, effectively creating
anegativebendangle.
Tip: You can also use Use Target State with Grab
State to maintain or reverse a shape created with
a previous cloth simulation or shape-changing
modifier.
Torunaclothsimulationwithanetworkedrender
farm:
A complex cloth simulation can require extensive
computation and take a long time. Cloth includes
commandsthatmakeiteasytorunasimulation
onanetworkedmachine(partofarenderfarm),
freeing up your machine for working on other
parts of the scene.
1. Set up the simulation.
2. For each cloth object in the s imulation, select
the object, and then on the Selected Object
rolloutclickSetandspecifyapathandfile
name for the cache.
For best results, specify a mapped drive and
turn on Force UNC Path. This specifies the
path using the Universal Naming Convention
so that it can be found by all computers in the
network. Also, it’s probably a good idea to keep
allthecachefilesinthesamedirectory.
3. On the Simulation Parameters rollout, turn on
Sim On Render.
4. Save the scene file.
5. On the Render Scene dialog, turn on Net
Render, and then click Render. Submit the job
to a single Server .
Unlike rendering, network Cloth simulation
cannot be split up among multiple Server
machines.
Note: You needn’t render the entire animation
to tr igger the cache creation; a single frame
suffices.
As soon as the Server machine s tarts the
render, it begins computing the simulation and
saving it to disk. At any point you can load the
simulation in its current state from the cache
file to check its progress by clicking the L oad
button.