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586 Chapter 20: Managing Scenes and Projects
ray tr aced, tur n the lig ht off, tu rn shadows on,
and choose Shadow Map as t he shadow type.
If different instances of a lig ht need different
settings, you w i l l need to make a copy of t he
light.
Note: When a light is turned off in 3ds Max,
itsilluminationisstoredintheLightscape
mesh w hen radiosity is solved. That way, if
it is imported back into 3ds Max, the light
remains off, and the illumination comes from
the radiosit y mesh.
To expor t animated objects:
1.
Select the geometry in your scene that is b eing
animated. Geometry should be selected if it is
movingoroneofitsmaterialsischanging.
You don’t need to select nonanimated geometry,
even if it’s illuminated by an animated light.
Tip: Make a named selection set of the objects
you select in this step and the following one.
Then y ou can invert this selection to export
nonanimated objects. See
the following
procedure (page 3–586)
.
2. Select the lights in your scene that are being
animated. Lights should be selected if they are
moving, or any of their par ameters, such as
brightness and color, are changing.
If you are animating daylight, you need to select
the light you are using to simulate daylight.
If you plan to use the Lightscape utility
lsray to
render the output, and you want to ray trace
directillumination,makesureyourlightsare
turned on, and that their shadow type is set to
Advanced Ray Traced.
3. Access the Export Lightscape Preparation File
dialog (page 3–591)
.
4. Choose the Selected Objects radio button.
5. Set the other parameters in the Gener al panel
as you normally would.
6. Click the Animation tab. In the Animation
panel (page 3–596)
, enter the range of frames
you want to export.
7. If you are using daylight, click the Daylight tab,
and in the
Daylight panel (p age 3–597) set the
daylight parameters.
8. Don’tforgettosetupwindowsandopeningsin
the
Windows panel (page 3–598) ,ifyourscene
makes use of these.
9. Click OK. This will export the animated objects
by creating a Lightscape Preparation file for
each frame in the scene.
To ex por t nonanima ted objects:
1.
Retrieve the selection of animated objects, then
choose Edit > S elect Invert. This selects all of
the objects that are not animated.
2. UseCTRL+clicktoremoveobjectsyoudon’t
want to export from the selection set.
3. Access the Export Lightscape Preparation File
dialog (page 3–591)
.Usethesamenameyou
used for the animated objects. (This won’t
overwr ite the original LP fi le, because sequence
numbers will be appended to the file name.)
4. Choose the Selected Objects radio button.
5. Set the other parameters in the General p anel
as you normally would.
Impor tant: Make sure the units are the same as
when you exported the animated ob jects.
6.
Click OK. This will export the nonanimated
objects in a Lightscape Preparation file.
To export pa r ameter s:
1.
Ifyoudidn’texportalloftheobjectsin
your scene, select all of the animated and
nonanimated objects you
did export .
2. Access the Lightscape Param e ter File Export
dialog (p age 3–608)
.Usethesamefilename
youusedfortheanimatedobjects.