A forward kinematics experiment using Papervision3D v2.0 alpha and a Collada 3D model of a robotic arm.
Hope you enjoy it.
I don’t want to release any source from this yet, as I want to do some more work on it, relating to the following items…
Just wanted to let anyone in or around the Bay Area know that there’s going to be a Papervision3D training with John Grden on the weekend of February 3-4 in San Francisco. It’s being held at EVB, which is where I work.
Here’s the link: http://pv3d.eventbrite.com/
If you’re going, look me up, as I’ll be there…
I drew up this example a few weeks ago to learn about the new features in Papervision 2.0 alpha. If you’re thinking of looking into the new version, then hopefully you’ll find the supplied source code below of some use. I used the code from this screencast on unitzeroone.com as a starting point.
The source code has example usage of the following things…
A basic example of collision detection in 3D, where moving particles bounce off a static terrain.
A couple things on it which could be of use …
One point of interest is that while the thumbnail images are preloading and the progress bar is up, it’s actually measuring the framerate of the 3D animation in the background, and then based on the results, adjusts the detail level of the plane accordingly.
A wavey liquid surface being hit by rocks.
For best performance, you’ll want to use the 9.0.60 version of Flash Player with a multi-core CPU. Press D to lower the level of detail if it’s killing your browser.
Other controls:
T cycles through different textures
B cycles through texture blend modes
W shows the 3D wireframe
+/- moves the camera in and out
Spacebar pauses the action, allowing you to rotate around the scene
Conceptually, here’s whats going on…
A few improvements have been made enhancing visual quality as well as overall framerate under load, plus a few presentation and interface-related tweaks.
The main class file for the effect has been updated as well.
Thanks to Carlos Ulloa and Alexander Zadorozhny for their thoughts on the Papervision3D mailing list.
Press ENTER to create new instances of the book. Press it several more times and watch your browser chug :).
Here’s the main class for the page turn effect. I used the code for the PV3D Plane class as a starting point (but, in hindsight, probably should have subclass’ed from it instead). To create the appearance of a rotation of the 3D object, the individual vertices are rotated around the Y axis by increasing amounts depending on their (original) position along the X axis.
Version: 0.9B – Last updated on 4/22/2007
Licensed under a Creative Commons Attribution 3.0 License.
