2012

Table Of Contents
Converting Lights
Properties of lights converting from previous releases of AutoCAD and other
products.
Work with Lights in Drawings from Previous Versions of
AutoCAD
Converting lights from previous versions.
With AutoCAD 2008, you can choose either standard (generic) lighting or
photometric lighting. Prior to AutoCAD 2008, the only option was standard
(generic) lighting. There is no explicit conversion required for lights from
AutoCAD 2007 to AutoCAD 2008. Drawings from AutoCAD 2007 will open
by default in AutoCAD 2008 in the standard (generic) lighting workflow. The
additional photometric properties in AutoCAD 2008 are available as soon as
you turn on the photometric lighting workflow in your drawing.
There is a conversion process required when opening drawings with lights
from versions prior to AutoCAD 2007. The 3DCONVERSIONMODE system
variable is set by default to convert drawings with lighting from previous
versions to the AutoCAD 2007 and AutoCAD 2008 lighting format. The system
variable has three settings. If the variable is set to 0, no automatic conversion
takes place. If it is set to a value of 1, the default value, the conversion takes
place automatically. If the value is set to 2, you are prompted when lights
need to be converted and have the option to convert or not to convert.
You can use the CONVERTOLDLIGHTS command to convert the old lighting
manually.
Quick Reference
Commands
CONVERTOLDLIGHTS
Converts lights created in previous drawing file formats to the current format.
System Variables
3DCONVERSIONMODE
Used to convert material and light definitions to the current product release.
2200 | Chapter 44 Add Lighting to Your Model