After two weeks of on and off work on the engine I’ve managed to speed up rendering drastically (although there are still some light optimizations I have planned). I also began adding support for textures to my primitive classes – as seen below.
I recently got deferred rendering working after struggling with it for some time (my friend Tasky managed to find that I had a negative sign missing somewhere). Defuse lighting, ambient lighting, and specular lighting are now implemented and everything is progressing nicely.
Well, I got a chance to work on the engine a bit more and I’ve got some basic shader effects done but the major additions are terrain and procedural primitives (boxes/spheres). You can see a screen below – I wrote my name on the heightmap image. 
Special thanks to Machello for helping with an index algo for the spheres.
Sphere, terrain, and box - in that order.
That’s right, I built a new computer. It is sexy. Specs follow:
It is fast. I am happy.
I’ve been working on writing a 3D Game/Graphics Engine in XNA. It’s coming along. I think I’ll end up rewriting the gravity simulator in 3D when we’re at a decent stage.
Until then, here’s a test screenshot:
Tree model in the center with X, Y, and Z Axis drawn
Second release of my Orbit Simulator. This requires the latest version of the .NET framework (basically, if it doesn’t run – try updating).
Orbit Simulator Version 1.1.0 – 
You may want to view the help document here or click Help from the menu bar in the program.
First release of my Orbit Simulator. This requires the latest version of the .NET framework (basically, if it doesn’t run – try updating). Press F1 to view the help – press F3 to open the basic orbit config file that’s included – press Enter to start the simulation.
Download Now! – OUTDATED
[Update]
I’ve written a help document for the next version of the simulator so that you can get a better idea on how to use it. Just note – it’s for the next version so some of the commands are different but the idea is still the same.
I’m writing an Orbit Simulator in C# with .NET 3.0 to get myself to learn .NET and to get myself in the programming mood for other projects I need to do.
I started a few hours ago (3?) and it’s coming along nicely – about 1,200 lines in and I’ve finished basic rendering, render objects, and object settings. All that’s left is tieing it all together and the actual math… and maybe making it a tad more user-friendly.
It should turn out nicely. My friend Machello made a similar program in Py but it was not this advanced – and mine will execute faster as it’s not done in Py. I wonder where his program went…
[Update]
Screenshot!
[Update]
Fully functional now! Release soon?
Well, I’ve been listening to OC Remix’s Doom 1 remix “The Dark Side of Phobos” and a friend recently sent me a link to their Doom 2 remix project (downloading now downloaded). I see many of the same great artists from the first remix and hope the second will be as outstanding the second is as outstanding, still needs some time to grow on me but there are some great songs.
Give it a listen, and while you’re at it check out the rest of OC Remix.
[EDIT] Final Doom