Simulating & Rendering Squishy Ball 02
SETTING CLOTH PARAMETERS
9. Now, Press Play with default setting and you
will get something like this.
Which is not
really what we want. The cloth is intersecting with itself and has no rigidity.
10. since we have added cloth, the cloth modifier is
appearing on modifiers tab, now we can apply another subsurface modifier to
give smooth look to our squishy ball. If its still looking flat, hit space bar and
type shade smooth and apply to it.
Now the reason for applying subsurface modifier after cloth
is to give cloth less segments / geo count to simulate, which will save a lot
of time while baking the simulation. Since the modifier is a below the cloth
which means its acting after the cloth
simulation and giving nice smooth look without increasing sim time.
11. Its better to
cache your simulations rather than just hitting play button. Because when you press play, you can not
scrub back and forth any time since blender not keeping it in memory. So in
Cloth Cache rollout you will find BAKE button, give any name for a cache and
hit hit BAKE to bake the simulation. And Use FREE BAKE to erase the simulation
After Baking "FREE BAKE" button will appear on the same space.
12. Now Lets
tweak the Cloth collision parameters.
First thing
is to activate “Self Collision” button with decent number of quality value.
(More the quality amount more the simulation time)
Keep the
distance high enough.
Change the
repel value, which will allow the ball to jump / bounce after collision.
Generally keep it between 2.5 to 3.0
(refer the
settings from image)
13. now Bake
the simulation and you will get something like this, which is not giving any
geometry intersections. Cool J
But still we
are lacking for its shape and bouncy behavior.
14. In Cloth Rollout, you will find, Material Parameters. Lets tweak those now,
MASS :
Higher the mass, more it will squeeze after collision, so generally keep it
around 1.0 to 2.0
STRUCTURAL :
This value will determine how much the stiff object can be. But if you go to
Higher value, it slows the movement. Like a drag force acting on it.
So, keep
that in mind and put the value around 750 to 1200.
BENDING :
This value is more important here, higher you
goes, more it will try to retain its shape even after distortion due to ground
collision. So keep the value around 4500 to 6500.
(depends on
scale and mass factor)
Refer the
setting from image
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