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Lightscape Mesh Objects 613
4.
In the Import group, turn off all Import options
except for Radiosity and Lights.
5. Click OK.
The importer replaces the scene’s radiosity
solution with the one obtained from the LS file.
To impor t sunlight into an existing 3ds Max scene:
This procedure assumes you have already
established an existing 3ds Max scene b ased on the
geometry of an LS file.
1. ProcessyourLightscapesolutionfilewith
the desired daylight settings until you have
achieved the desired result. Save the LS file.
2. In 3ds Max, import the LS file.
The Import Lightscape Solution dialog is
displayed.
3. In the Import group, turn off all options except
for Radiosity , Sunlight, and Materials.
(Materials is an optional choice. If y ou didn’t
change materials in Lightscape, you can leave
it off as well.)
4. Click OK.
The importer creates a directional light that
models the sun light created in Lightscape.
To mak e a 3ds Max material for use with imported
meshes:
1.
In 3ds Max, open the Material Editor.
2. Clickanunusedsampleslottomakeitactive.
3. Click the material type button (by default, it
is labeled “Standard”).
The Material/Map Browser is displayed.
4. In the Browser, double-click Multi/Sub-Object.
Respond to the dia log that asks if you want to
keep the original
mater ial.
5. On the Multi/Sub-O
bject Basic Parameters
rollout, click Set Number and change the
number of sub-materials to the number you
want to use with the imported meshes.
You can set the color and mapping of each
sub-material as you would for to p-level
materials.
6. Applythenewmulti-sub-objectmaterialtothe
Lightscape Mesh objects (page 3–613) in the
scene.
7. Select a Lightscap e mesh object.
8. On the Modify panel, go to the Face
sub-object level.
9. Set the material ID of each Face sub-object to
correspond to the ID of the sub-material you
want to apply to that face.
Note: When the mesh stores textures (the Mesh
To Te x t u r e p r o c e dure w a s u s e d i n L i g h t s c a p e ) ,
facesthathavetexturesaredisplayedand
rendered with no further lighting c a lculations.
If you want to assign a material to a face, then
attheFacesub-objectlevel,makesureyouturn
off Raw Mesh To Texture.
10. Repeat steps 7 through 9 for each Lightscape
mesh object in the scene.
Lightsca pe Mesh Objects
When you import a Lightscape Solution (LS)
file,theLightscapegeometry,whichcancontain
radiosit y data, is imported as an object t ype named
Lightscape Mesh. At the object level, Lightscape
meshes have no parameters. Lightscape meshes
have a single sub-object level, Faces. At the Faces
sub-object level, you can change the material
ID value of faces for controlling sub-material
assignment.