NASA Posts and Then Removes Link to Java SDK

This is what they get for not letting the community help with development and releasing only one alpha to a tiny group.

Yeah.. I signed up for the alpha and didn’t hear anything back; though I specialize in real time audio and graphics for Java.

The tile downloading might vary, but I’m already changing other things..

The first things I’m looking at replacing are the timing mechanisms used for drawing and keyboard input, etc… IE the use of java.swing.timer and java.util.timer..

I’ve had my own high resolution timer for quite some time that I’ll be releasing shortly open source.

So I’m first going to look at possibly improving the timing, but will look for other peformance stuff too..

Perhaps they took it down because they didn’t really include much license verbiage at the top of the source files.. dunno… Everything runs fine here compiling from the source you posted above.

I actually presented a BOF at J1 on the topic of timing frameworks and will soon put online a demo rendering engine that has an an interchangeable Java2D and JOGL rendering component that compares performance between each for line rendering. One of the slowest Java2D primitives is the polyline which just happens to be quite useful for drawing roads for instance. One must do some sort of deferred rendering for Java2D whereas real time results are easily attainable with OpenGL (via vertex arrays, vertex buffer objects, or perhaps geometry shaders in the case of this particular demo).

That demo is somewhat applicable to GIS as last year I made a JVM 1.4+ real time Java2D renderer for TIGER/Line data streamed from a server that utilized deferred rendering if necessary for “some company”..

I was telling them WWJ was coming.. ;P Though I’m curious how Nasa might work with commercial entities.. I sort of reviewed some more detailed license verbiage months ago that seemed somewhat positive.

It’s good work though (thanks Tom et al!) and I’m glad it is open source.. It will be quite easy to extend it. I’ll be making it binding agnostic so our LWJGL friends can play too amongst other things..

Is there a dev specific list for the WWJ?

I’m pretty keen on the multi-user shared virtual world concept, so I’ll be playing around with that direction too.

The links are going to change and most the docs will be on the NASA side. There are the forums and there is a mailing list but it is not really that active and we will probably point people more to the forums instead.