Feature list

User interface Easy to use Multiple panes within a window Multiple windows Dual-monitor support Custom grid support Clipping planes On-line documentation and tutorial Metric (and English)	Structural modelling Easy-to-use building structure primitives - Combine simple house forms together to produce more complex designs Buildings can be 100 stories tall, of any size, with no limits to the number of buildings in a model. Foundations Framing Staircases Decks and verandas Balustrades Windows - that can be opened and closed Doors - that can be opened and closed Trusses In all, hundreds of objects included Create your own objects if you can't find what you need
Image quality Multiple settings that trade off image quality vs. drawing times Ray tracing (w/SMP support) Antialiasing Shadows Transparency Specular reflection Diffuse reflection Ambient lighting Multiple light sources with spotlighting and accurate light intensity Perspective and isometric Solid modelling or wireframe	Interior modelling Lights that really work Cabinets Furniture - tables, chairs, lounges, beds, etc. Decorations - tablecloths, curtains, etc. In all, hundreds of objects included Create your own objects if you can't find what you need
Textures Hundreds of textures included Volumetric textures Customize procedural textures to create variations on existing ones 3D painting - Paint directly onto your 3D objects Use .bmp and .jpg files Bump and transparency maps Custom textures are automatically embedded in 3DOB files that use them Easily distribute textures to your clients and friends	Exterior modelling Landscape topography Custom-build trees and shrubs for your region Automatic forests Sun and moon location based on the date, time of day, and latitude Realistic sky, including the sun, moon, you're own planets, and clouds Fences Roads and pathways Pools Tarps In all, hundreds of objects included Create your own objects if you can't find what you need
Misc. Printing and saving as a bitmap Dozens of fully-detailed sample files Clients can use 3DOB for free when viewing models you produce Tracing paper - Scan in plans or photos and superimpose them on top your workspace to make modelling easier. Effects - Image post-processing and non-photorealistic rendering	Character modelling Polygon meshes Subdivision surfaces Vertex editing Organic editing Morph editing UV texture map editing Bone weight editing Tailor mode (tools to create clothing) Convert any object into a polygon mesh Bones Eyes, hair, and teeth/jaw objects to make character creation easier
Audio Include audio in animations Built-in wave editor "Phoneme segmentation" to make lip sync easy Tools to change a recorded voice, including male-to-female and vice versa. Text-to-speech - Build your own voice. Transplanted prosody	Object editing Build your own objects for a large variety of primitives (or other objects already in the library) Custom objects are automatically embedded in 3DOB files that use them Easily distribute models to your clients and friends
Not implimented - These are features that 3DOB does not support but which may be implimented if there is enough user demand for them. E-mail me at Mike@mXac.com.au to place your vote(s). APIs - I don't export any APIs, but I could provide a set for C++ programmers to use. Animation Poses Walk cycles Objects Boolean operations on polygon meshes Buildings, medieval - aka roman arches and domes) Caves and dungeons Deformers - non-bone Export to (and import from) other 3D modellers Metaballs People - Easy to create bodies and heads. Rocks, rivers, and waterfalls Sweeps and extrusions, improved 3D text Rendering Hair and fur geometries Hardware acceleration for walktrhoughs -At present I don't use 3D accelerator cards because their quality is unpredictable. However, the cards might be useful for accelerating real-time client walkthroughs. Radiosity, and beyond Simulations Cloth simulation Particle systems Physically based modelling Textures Combined and layered textures Animated textures Video tutorials Your favorite feature not listed? E-mail me about it.	Animation Animate object position and rotation Animate attributes - such as skeleton position, open/close, on/off, etc. Multiple scenes per file Keyframes Automatically generated keyframes Graph of attributes Real-time playback of animation Generate .AVI files Wave editor with a speech recognizer that can recognize where phonemes begin and end, simplifying lip sync to fast and painless task.