Autodesk LIGHTSCAPE, Manual

Page: 80 / 362

Importing Geometry 5
72
Lightscape
Handling Error Messages
Select a method for handling non-fatal errors in the
Error Handling list. Fatal errors will always abort the
import.
Importing Sunlight
You can use a LightWave Distant or Spot light to set
up daylight for the imported model. You can import
daylight in either of two ways.
Lightscape calculates a date, time, and north direc-
tion that positions the sun to shine in the same
direction as the LightWave light. If you do not have
Lightscape calculate the date, time, and north direc-
tion, it sets the values you designate and overrides
the sun position and luminance to match the Light-
Wave light.
1. Click the Daylight tab on the LightWave Scene
dialog.
The Daylight panel appears.
2. Select a LightWave light to represent the sun.
Notice that the remaining boxes in the dialog are en-
abled.
3.
Select the location on the Earth where the model
is to be set. You can choose one of the cities in the
combo box, or you can directly input the latitude,
longitude, and time zone in those input fields. If Lat-
itude appears in red, then the light is shining down
too much to be the sun at that latitude. If you do not
correct the error, the importer will override the solar
position to place the sun at the desired location.
4.
Enable Daylight Savings to calculate the time of
day during daylight savings time.
5. It is usually possible to duplicate the sun’s posi-
tion during the morning or afternoon, and between
the summer and winter solstice. Choose which date
and time you want the importer to use if there is a
choice.
6.
Click the Recalculate button. A north direction
and time will be calculated that matches the sun’s lo-
cation with the direction of the selected lights.
7. You can enter either a north direction or a date
that you want to use for daylight. If you enter a value
that is not valid for the selected light, the name of the
value appears in red. If you do not correct the value,
the importer will override the solar position to place
the sun at the desired location.
Note: When you import the model into Light-
scape, you can also adjust these settings using the
Daylight Setup dialog. For more information on
working with daylight, see Chapter 10, “Daylight.”
Exporting from 3D Studio MAX
or 3D Studio VIZ to Lightscape
Use the MAX2LP plug-in to export your models
from 3D Studio MAX or 3D Studio VIZ for use in
Lightscape. You can also import final radiosity solu-
tions created in Lightscape back into 3D Studio
MAX or 3D Studio VIZ.
To export from 3D Studio MAX or 3D Studio VIZ:
1.
In 3D Studio MAX or 3D Studio VIZ, choose
File | Export.
The Select File to Export dialog appears.
2.
Select a name and location for the exported file.
If you enter a new name for the exported file, you
must type the filename and file extension.
Select: To:
Prompt Choose between ignoring this error or
aborting the import. You can also
choose to ignore all errors.
Abort Abort the import with an error mes-
sage.
Ignore Ignore the error. No error message is
displayed.