9

802 Chapter 13: reactor
3.
Use the rollout to specify properties, as
described in the Interface section.
Inter face
Water Properties rollo ut
Size X/Y —The dimensions for the water object.
Subdivisions X/Y—The tessellation for the water’s
mesh.
Landscape but ton—Although water is defined
using a rectangular area, you can simulate
non-rectangular surfaces and obstacles inside the
water by defining a landscape geometry.Once
you designate landscape geometry, any vertex in
the Water space warp that are contained in the
landscape are fixed during the simulation and
wavesandrippleswillbereflectedatthosepoints.
Wave Speed —Thespeedatwhichwavecrests
propagate across the surface of the water.
Min/Max R ipple—Limits on the size of the waves
generated in the water.
Density —Therelativedensityoftheliquid. This
determines which objects will sink into the water,
and at w hat height objects of a lesser density wil l
float. The density is specified relative to the density
of water (1.0=1,000 kg/m
3
).
Viscosity—Resistance to flow: how difficult it is for
objectstomovethroughtheliquid.Ahighvalue
means that the motion of objects through the
water is h ighly damped.
Depth—The depth of the water. Buoyancy is
applied only to objects inside the water.
Use Current State—When on, the simulation uses
the current animation to calculate the starting
state. So if you have, for example, updated the
water during the preview (page 2–815) using the
Update MAX command, the stored state is u sed
as the initial state.
Disabled—Removes the water from the simulation.
# Stor ed K ey fr a mes—This indicates if there are
any keyframes stored for the water. Keyframes
are stored for the water if you create a reactor
animation in 3ds Max, or if you use Update MAX
in the Preview Window.
Clear Key f ra mes—Clears any stored keyfr ames for
this water.
Show Text—When off, the label "Water" doe sn’t
appear next to the space war p in the viewp orts.
Reset Default Values—Restores the default values
for the object.