3D Graphics, Animation, Rendering
3D computer graphics are different from 2D computer graphics in that a three-dimensional representation of geometric data is stored in the computer for the purposes of performing calculations and rendering 2D images.
Rendering is the final process of creating the actual 2D image or animation from the prepared scene. This can be compared to taking a photo or filming the scene after the setup is finished in real life.
From : http://en.wikipedia.org/wiki/3D_graphics
K-3D
K-3D is a complete free-as-in-freedom 3D modeling, animation and rendering system.
K-3D features a robust plugin architecture and visualization pipeline, designed to scale to the needs of professional artists. K-3D has been written from the ground up to generate motion picture quality animation using RenderMan render engines.
Workflow
Procedural modeling and animation.
Interactive tutorials.
Unlimited hierarchical undo/redo.
Viewing
Camera: pan/tilt, zoom, dolly, modeling and tripod modes.
Viewing Modes: Detailed selection of visible features.
Hide / unhide geometry.
Funny
Modeling
Powerful scene graph Procedural Modeling with complete modeling history.
Selection: Objects, meshes, faces, edges, patched, curves, point groups, points.
Geometry types: Polygon, NURBS, subdivision, blobby.
3D Primitives: Cone, circle, cushion, cylinder, disk, grid, paraboloid, polyhedron, sphere, torus.
Boolean modeling operations (using GTS library).
Text: FreeType2 support.
Instantiation: Create duplicates without adding gemometry to the scene.
Animation
Visualization Pipeline allows arbitrary dataflow - any object property can be connected to any other compatible property.
Animate any value.
Unlimited number of animation channels.
Bezier curve channels.
Animate modeling operations.
Materials and Textures
Textures with 16-bit float bitdepth.
Procedual RenderMan shaders.
Rendering
Full RenderMan Support: Aqsis, Pixie, BMRT, PRman, 3Delight, Render Dot C.
Extensible support for alternate render engines and models: Yafray.
Render OpenGL previews to disk.
Scripting
Python engine (preferred engine for new script development).
K3DScript engine (minimal scripting engine for tutorials / macros).
Support for alternate script engine plugins and environments.
Compositing
Basic 2D compositing.
Bitdepth 16-bit float per channel.
Supported Formats
Geometry Formats: Wavefront OBJ, GTS and a raw format are fully supported, other ones are optional and depend on PLIB installation. Experimental plugins include OpenFX, OFF, RIB and X formats.
Image Formats:
JPEG (all platforms).
PNG (all platforms).
TIFF (all platforms).
OpenEXR (requires optional OpenEXR plugin).
BMP (requires optional ImageMagick plugin).
SUN (requires optional ImageMagick plugin).
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K-3D
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