Full-scene dynamic lighting and shadows

• Support for five different fundamental light source types. More
• All lights and shadows rendered in real time at global scale.
• Spot and cube light texture projections.
• Precomputed ambient light volumes.
• Three fully orthogonal shadow rendering techniques.
• Shadow volume clipping and scissor optimizations.

Advanced per-pixel shading capabilities

• Comprehensive bump mapping support.
• Enhanced parallax mapping.
• Horizon mapping.
• Ambient lighting volumes.
• Gloss-mapped specular reflections.
• Cube environment mapping.
• Cook-Torrance microfacet surface reflection.
• Bumpy reflection and refraction.
• Realistic water shading.

Scene graph

• Extremely clean class hierarchy for scene graph nodes, including geometries, cameras, lights, sounds, zones, portals, triggers, markers, and special effects.
• General state serialization support for saving worlds.
• Quick save and quick load capabilities.
• Separation between per-instance and shared data.
• External scene graph referencing from within another scene graph.

State-of-the-art portal system

• Efficient large-scale visibility determination.
• Advanced interzone lighting analysis performed in real time.
• Special support for mirrors and remote portals.

High-level controller system

• Powerful hierarchical animation blending system.
• Handles state messaging in a multiplayer environment.
• Powerful scripting system that can be extended with custom actions.
• Cleanly extensible design and integration with the tools.

Special effects

• Full-scene cinematic motion blur. More
• Volumetric fog with multiple density functions. More
• Interactive in-game interface panels. More
• High-quality procedural fire effects.
• Fully extensible particle systems.
• Real-time fluid surface simulation.
• Real-time cloth simulation.
• Surface markings on arbitrary geometry.
• Emission glow and specular bloom effects.

Sound manager

• Fully spatialized 3D sound effects.
• Doppler shift and other frequency effects.
• High-precision sound travel delay.
• Atmospheric absorption effects.
• Reverberation with multiple simultaneous environments.
• Directional sounds with cone attenuation.
• Obstruction attenuation applied to direct and reflected paths.
• Frequency-dependent volume settings for all effects.
• Permeation system determines how far sounds travel through interiors.
• Unlimited streaming music channels with seamless looping and concatenation.

Networking / Multiplayer

• Fast, reliable network implementation using UDP/IP.
• Solid fault tolerance and hacker resistance.
• Advanced security measures, including packet encryption.
• Automatic routing of messages to object controllers.
• Cross-platform internet voice chat.

Core system

• Resource management with support for pack files and caching.
• Mathematics and geometry library.
• Extensible system commands and variables.
• Tool module plug-in architecture.

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Full-featured integrated world editor

• World editor is part of the engine itself and runs within the engine's own windowing system. More
• Powerful and intuitive interface design that allows fast level creation.
• Zero build time, so results are immediately visible while editing a level.
• Palettes for geometries, lights, sound sources, zones, portals, markers, and special effects.
• Support for multiple undo.

Graphical script editor

• Scripts are edited graphically for easy artist/designer access. More
• Games can easily define custom script components, and these automatically appear in the editor.
• Controllers can advertise custom function calls that can be accessed from scripts.
• Scripts support variables, looping, and conditional execution, all shown in a concise graphical manner.

Interface panel editor

• Fully interactive in-game interface panels can be created graphically. More
• Custom scripts can be attached to panel items for limitless interactivity.
• Panels have an extensible animation system with many built-in techniques.

Model, animation, and texture import tools

• Support for the Collada scene format, enabling models to be imported from 3D Studio MAX, Maya, XSI, Blender, and other content creation packages.
• Full skeletal hierarchy support for skinned meshes.
• Bump map, parallax map, horizon map, and ambient occlusion channel calculations.
• Texture compression and automatic mipmap generation.

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