3ds Max 2012 Bible - Kelly L. Murdock [456]
Deflector, SDeflector, and UDeflector
The Deflector and SDeflector Space Warps are simplified versions of the POmniFlect and SOmniFlect Space Warps. Their parameters include values for Bounce, Variation, Chaos, Friction, and Inherit Velocity. The UDeflector Space Warp is a simplified version of the UOmniFlect Space Warp. It has a Pick Object button for selecting the object to act as the deflector and all the same parameters as the SDeflector Space Warp.
Geometric/Deformable Space Warps
You use Geometric/Deformable Space Warps to deform the geometry of an object. Space Warps in this subcategory include FFD (Box), FFD (Cyl), Wave, Ripple, Displace, Conform, and Bomb. These Space Warps can be applied to any deformable object. Figure 42.12 shows the icons for each of these Space Warps.
FIGURE 42.11
The POmniFlect, SOmniFlect, and UOmniFlect Space Warps reflecting and refracting particles emitted from the Super Spray particle system
FIGURE 42.12
The Geometric/Deformable Space Warps: FFD (Box), FFD (Cyl), Wave, Ripple, Displace, Conform, and Bomb
FFD (Box) and FFD (Cyl)
The FFD (Box) and FFD (Cyl) Space Warps show up as a lattice of control points in the shape of a box and a cylinder; you can select and move the control points that make up the Space Warp to deform an object that is bound to the Space Warp. The object is deformed only if the bound object is within the volume of the Space Warp.
These Space Warps have the same parameters as the modifiers with the same name found in the Modifiers⇒Free Form Deformers menu. The difference is that the Space Warps act in World coordinates and aren't tied to a specific object. This allows a single FFD Space Warp to affect multiple objects.
Cross-Reference
To learn about the FFD (Box) and FFD (Cyl) modifiers, see Chapter 11, “Introducing Modifiers and Using the Modifier Stack.” •
To move the control points, select the Space Warp object, open the Modify panel, and select the Control Points subobject, which lets you alter the control points individually.
FFD Select modifier
The FFD Select modifier is another unique selection modifier. It enables you to select a group of control point subobjects for the FFD (Box) or the FFD (Cyl) Space Warps and apply additional modifiers to the selection. When an FFD Space Warp is applied to an object, you can select the Control Points subobjects and apply modifiers to the selection. The FFD Select modifier lets you select a different set of control points for a different modifier.
Wave and Ripple
The Wave and Ripple Space Warps create linear and radial waves in the objects to which they are bound. Parameters in the rollout help define the shape of the wave. Amplitude 1 is the wave's height along the X-axis, and Amplitude 2 is the wave's height along its Y-axis. The Wave Length value defines how long each wave is. The Phase value determines how the wave starts at its origin. The Decay value sets how quickly the wave dies out. A Decay value of 0 maintains the same amplitude for the entire wave.
The Sides (Circles) and Segments values determine the number of segments for the X- and Y-axes. The Division value changes the icon's size without altering the wave effect. Figure 42.13 shows a Wave Space Warp applied to a simple Box primitive. Notice that the Space Warp icon is smaller than the box, yet it affects the entire object.
Note
Be sure to include enough segments in the bound object, or the effect won't be visible. •
FIGURE 42.13
The Wave and Ripple Space Warps applied to a patch grid object
Tutorial: Creating pond ripples
For this tutorial, you position a patch object so it aligns with a background image and apply the Ripple Space Warp to it.
To add ripples