The editor is the tool that you use to build levels for your application. It
has support for editing complex 3d geometry, with texture mapping, lighting and
static data.
The features the editor supports include:
The editor serves as a design tool for level designers, and as a place for
interfacing level art with the actual application. The level data is designed so
that artists and level designers can modify it easily, and programmers can
easily and efficiently access it at application run time.
When editing levels, you spend most of your time working with two different
item types: brushes and entities. By placing, shaping, and changing attributes of brushes and entities, you
can make very complex and beautiful architecture.
3d geometry editing
Texture mapping
Lighting
Per-level data management
Geometry motion keyframing
Texture management
Geometry library management
Level build management
User-defined entity types