Graphics Programs Reference
In-Depth Information
Weight. Activating Adv. Resistance tells
HardFX that the shape of each brick has an
effect on its air resistance.
11. Hit the
Calculate
button and play back
the results. Our bricks now have more
weight, but they still bounce too much,
causing them to scatter. Switch to the
Rotation tab of the HardFX properties.
Change Torque Min to
0%
and Torque
Max to
20%
. Then activate
Size
Effect
to allow the size of each brick to
impact its rotation. Recalculate and play
back the results.
Figure 19-22: Set Force Mode to Rotation Control
and Initial Axis to Z.
is hitting the wall along the Z axis, let's
also change the Initial Axis pop-up to
Z
.
13. Hit the
Calculate
button and then play
back the animation. Everything looks
good, but it appears that the bricks “jit-
ter” after they've landed on the ground.
This type of error can often be resolved
Figure 19-21: Decrease the brick rotations by
lowering the Min and Max Torque.
This looks great and we could probably call
it complete, but it still seems like the bricks
rotate too much, giving them a less weighty
feel. We could correct this with the Torque
settings, but there's another way.
12. Click on the
Force
tab of the HardFX
properties and select
Rotation Con-
trol
from the Force Mode pop-up
menu. This will help constrain the rota-
tion of our bricks based on the impact
of the ball. Since we know that the ball
Figure 19-23: Lower the Resolution to 20 mm.
