Graphics Reference
In-Depth Information
Init Both
Initializes the fluid to the union of both of the previous volumes.
For an example of how these two initialization methods interact, consider the shape in
Figure 7-11
.
Figure 7-11
A nonmanifold mesh composed of a UV sphere with an extruded ring around the middle
You can create a similar shape by adding a UV sphere to a new session of Blender. I used eight rings and
eight segments to create the shape shown in
Figure 7-11
.
1.
SelecttheringaroundthemiddleofthespherebypressingAlt+rightmousebutton(RMB),andextrude
it by pressing the E key.
2.
Press the S key to scale the extruded edge outward. Enable a fluid simulation with the default cube as
the domain and the sphere you just added as the fluid.
For this example, I positioned the mesh to be bisected by the wall of the domain to show a cross section of
the fluid that is produced. In
Figure 7-12
, you can see how the various Init options create different initial fluid
states and amounts. The first image shows the Init Volume option. Note that the mesh ring around the middle
of the sphere does not contribute any fluid, because Init Volume is concerned only with closed meshes. The
