This comprehensive XNA tutorial explains how to do skeletal bone animation and skinning using COLLADA models, which allow for complex animations exported as XML that DirectX .X files can't handle.
Ballistic COLLADA viewer is a simple but efficient free COLLADA viewer, It is written in C++ and uses the OpenGL API for rendering. The new version adds support for textures and can reads models from the Google 3D Warehouse and models exported to .dae from the latest Google SketchUp, or Blender. It features game like navigation for better immersion.
PaperVision3D is an open source project that lets you import COLLADA files and render 3D objects in real time using Flash. The 3D Flash engines works with ActionScript 2 and 3, and features linear texture mapping, optimized for rendering speed and quality. This "how to" lets you experiment with creating a simple first person shooter using a COLLADA model and an AS2 class package. Also check out the summary blog which has some great example references.
COLLADA FX provides a way to package up shaders objects, describe the full visual style of a shader and provide a simplified model for operating them. This new Conditioner for the COLLADA Refinery (a COLLADA-based conditioning pipeline application) will convert a COLLADA FX-effect from profile_CG to profile_GLSL.
CodeSynthesis XSD is an open-source, cross-platform XML Schema to C++ data binding compiler. Provided with an XML instance specification (XML Schema), it generates C++ classes that represent the given vocabulary as well as parsing and serialization code. This lets you access the data stored in XML using types and functions that semantically correspond to your application domain rather than dealing with intricacies of reading and writing XML. XSD supports a wide range of industry standards and schemas including COLLADA in the new XSD v2.3.1 (i.e. translates COLLADA 1.3.1, 1.4.0, and 1.4.1 to C++). It is available on GNU/Linux, Windows, Solaris, Mac OS X, HP-UX, and AIX and supports many compilers. Dual-licensed under the GPL and a commercial license.
Updated release notes in Japanese for COLLADA 1.4.1 are now available (Release Notes Revision A). These notes offer corrections and additions to the earlier release notes, and are all indicated by colored shading.
Tony Parisi one of the co-creators of VRML, reviews "COLLADA: Sailing the Gulf of 3D Digital Content Creation". Quoting from the review: "...the laser-focus of the COLLADA design team seems to have paid off: the industry now has a common exchange format for game assets, and there is hope yet for developers who would rather spend their time building games than building tools to make games. This clarity of focus on the design comes through in the book as well. ... A detailed and lucid book that explains COLLADA from concept through implementation. If you are a programmer with a reasonable understanding of 3D graphics programming and/or authoring using 3D scene graphs, you will be able to learn the basics of COLLADA. If you are an experienced 3D toolmaker, COLLADA contains everything you need to get up and running to build your game, game engine or content pipeline tool. If you are a manager or decision maker, you get the added comfort of knowing that — finally — you just might be able to write that tool once and not over and over again."
Updated release notes for COLLADA 1.4.1 are now available (Release Notes Revision A). These notes offer corrections and additions to the earlier release notes, and are all indicated by colored shading.
Google has just released the latest beta for Google Earth 4. Google Earth 4 adds a simpler interface, time animation, enhanced layers, GIS data importing, compressed textures, movie making, and drawing tools. The latest beta adds a progress indicator, real-time GPS tracking, and greatly improved performance for COLLADA models (textured buildings). Available for OS X, Linux and Windows XP.
The Japanese translation of the COLLADA 1.4.1 specification is now available. You can download the Japanese translation from the COLLADA page as well as access the COLLADA DOM and the RT FX, and Refinery developer tools and code.