Rendering

• A combination of BSP-Portal rendering system
• Per-Pixel lighting (diffuse, specular, glossmaped bump mapping)
• Beam-Tree optimized realtime shadows
• Filtered lights
• Object oriented scene management
• Stackable post-process effects (Glare, motion blur, old film, etc)

Collision detection - response

• Per polygon collision detection and motion clipping
• Various collision primitives : sphere, box, capsule, cylinder
• Joints between bodies : hinge, ball-socket, double-hinge
• Rigid body dynamics(Realistic physics simulation)

Sound

• 3D sound
• Moving sound sources, and listeners with sound pitching(doppler effect simulation)
• Environment acoustics simulation
• Support for EAX
• Streaming and precached loading of audio data
• WAV, OGG wave file support

Shaders

• Vertex/Fragment programs
• GLSL vertex/fragment shaders
• Procedural texture-mapping
• Multipass rendering
• Loadtime image manipulation : contrast, brightness, mixing
• Conversion from height maps to normal maps
• Combination of any number of height maps and normal maps to one normal map.
• Texture coordinate manipulation : scale, rotate, scroll
• Vertex position manipulation
• Color manipulation
• All parameters can be assigned to functions of time (pulsing textures, etc
• PNG, TGA and JPEG images support

Animation system

• Skeletal based animation with vertex blending (Organic meshes are deformed correctly at elbows etc)
• Skeletal animation blending
• Bone animation override

Scripting

• Fully Python scripted
• Fully object oriented
• Everything is script controlled
• Scripts can be attached to almost everything.
• Green-threads for clean game code. These are not system threads and have no overhead as system threads. Sylphis can run hundreds of threads in run state with no performance cost.
• Action based game programming
• Script console. While the engine is running you can actually implement a new game entity and spawn it in the world!
• Intergrated development environment(SDE). While the engine is running you can start the SDE end debug the code on the fly (Inspect variables, set breakpoints, etc)

Miscellaneous

• Collection files so that you don't have to store hundreds of files in the engine's directory
• Automatic memory management and garbage collection on both C++ and Python objects. For C++ objects this is an option.
• Easy user interface building.
• Truetype font support
• Cross platform and cross compiler