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Advanced Effects R ollout 1341
The hotspot and falloff constrain each other, as
theirspinnercontrolsdo.
Advanced Ef fect s R ollout
Create p a nel > Lights > Cre ate a light. > Advanced Effects
rollout
The Advanced Effects rollout provides controls
that affect how lights affect surfaces, and also
includes a number of fine adjustments and setti ng
for projector lights.
Yo u c a n m a k e a light object (page 2–1272) into
a projector by choosing a map for the light to
project. A projected map can be a still image or
an animation.
Casting a projection with a light
Note: If your scene includes animated
bitmaps, including materials, projector lig hts,
environments, and so on, the animation file
isreloadedonceperframe. Ifyoursceneuses
multiple animations, or if the animations are large
files,thiscanslowdownrenderingperformance.
Pr ocedur es
To mak e a light a projector :
1.
Open the Material Editor (page 2–1409).
The Material Editor is where you adjust the
map’s parameters.
2. Use an unused sample slot to display a map.
3. Drag the map from the Material Editor to the
light’s Map button in the Advanced Effects
rollout. A dialog asks if the projection map
shouldbeacopyoraninstance. Choose
Instance. If you choose Copy, adjusting the
map i n the Material Editor has no effect on the
projected map.
You can also drag from any other used m ap
button, as in the Environment dialog.
Assigning the map displays the map name in
the button, and turns on the Projector toggle.
After you have set up the map, you c an turn off
Projector to test rendering the scene without
the projected image.
An alternative is to click the Map button.
This displays the Material/Map Browser (page
2–1412), which lets you choose the map type.
At this point, the light behaves as a projector.
To assign a map or adjust its parameters, you
need to use the Material Editor.
Note: Lights project maps on ly within their
cone, even if Overshoot is turned on.
To put the map in the Material Editor:
•Dragfromthelight’sMapbuttontoanunused
sample slot in the Material Editor.
Note: Sample slots with white triangles in the
corners indicate materials that are used in the
cur rent scene.
You can adjust the map in the Material Editor
by changing the map’s parameters.
To blur a projection map:
• IncreasethevalueofBlurOffsetinthemap’s
Coordinates rollout in the Material Editor.
You can animate Blur O ffset to have a projected
map go in or out of focus.