9

1382 Chapter 15: Lights and Cameras
1.
Select the camera.
2. Act ivate the Camera viewport.
3. Turn on the Auto Key button and advance the
time slider to any frame.
4. UsethePanbutton(intheviewport
navigation tools) and pan.
Or bit in g
You can animate the orbiting of any c amera very
easily by following these steps:
1. Select the camera.
2. Act ivate the Camera viewport.
3. Turn on the Auto Key button and advance the
time slider to any frame.
4. Use the Orbit button (in the viewport
navigation tools) and orbit.
The target camera revolves around its target; the
Free camera revolves around its t arget distance.
Zoo min g
Zooming moves toward or away from the camera’s
subject matter by changing the focal length of the
lens. It differs from dollying, which physically
moves the camera but leaves the focal length
unchanged. You can zoom by animating the value
of the camera’s FOV parameter (page 2–1373).
Creat ing Ani mated Cutaway Views
You can animate the creation of a cutaway view by
animating the location of the near or far clipping
planes (page 2–1379),orboth.
Multi-Pass Rendering
Effects
Create panel > Cameras > Target or Free > Parameters
rollout > Multi-Pass Effect group
Motion blur applied to wings of the flying dragon
Cameras can create two kinds of rendering effects:
• Depth of field (page 2–1383)
• Motion blur (page 2–1386)
Multi-pass rendering effects use multiple
renderingsofthesameframe,withslightcamera
movement between each rendering. The multiple
passes simulate the blurring that film in a camera
would register under cert ain conditions.
Although it is not a multi-pass effect, the choices
in the d rop-down list also let you specify the
depth-of-field val ue for the mental ray renderer
(page 3–78).SeeDepth of Field Parameter (mental
ray Renderer) (page 2–1383).