the matrix was a documentary
This has got to be one of the more insane physics demos I’ve seen so far. Most physics engine handles the basic rigid bodies and such, but start to fall apart with more complex interactions (i.e. fluid and cloth simulations). With the demo shown above, from Nvidia, it
After some more testing, it looks like OGRE is not the savior it seemed like yesterday. While the static geometry boosted frame-rates greatly, it’s only useful for, well, static objects. Meaning the models can’t move or animate. I did find another option, instancing, which initially looked promising. It
Looks like I spoke too soon. While OGRE was getting pretty slow with the naive implementation, I was able to find some code on what they call StaticGeometry, which is a system to batch together lots of similar meshes that don’t move (great for my cube example project).
Seeing as performance has been on my mind recently, I tweaked the core render loop a bit and saw some reasonable gains. The one thing I realized is that most of the objects in the scene are static, and don’t need their combined transformed matrices recalculated every frame. I
I don’t have much time, so I will be brief. Basically for the past few days I have been trying to optimize the engine. With the stress test you see above (around 13K cubes) I was only getting around 200 fps. Just slightly above my target of 120
Today I have gotten the camera system to a decent place, and made a simple free look demo. Most of the code had already been implemented, inside the vector and matrix classes, I just had to piece it together into a camera object. I also added a
Though the above video might not seem like an overly impressive jump from the last, there’s actually a ton of work behind it. The new additions include a node-based scene graph hierarchy, more robust math libraries, and keyboard control using DirectInput. Plus, I’ve tried to abstract as much as I
The demo is starting to shape up now, with texture mapping and some simple lighting (ambient and directional). To be fair, I’m not sure if I would really call this an “engine” quite yet. It’s still very much a bare-bones, hard-coded demo done in DirectX 11. But
Game Engine Gems 1 By Eric Lengyel is a book I discovered on Amazon, but really hadn’t heard of or seen talked about anywhere else. I do recognize the editor, Eric Lengyel, as the creator of the C4 Engine and author of the classic textbook Mathematics for 3D Game Programming
Today I have finally gotten a simple sort of animation working. It looks easy, but I made my life a lot harder by implementing by own math library. So far I have a Vector3D and a Matrix4x4 class almost finished. Well the Vector class is pretty much
