ClemensKernBlog » Deferred Rendering

Summer Games University

Clemens — Wed, 28 Jul 2010 20:35:42 +0000

Today I gave a presentation at the first Summer University at the HdM. The last two days, Andreas Stiegler talked a lot about engine architecture, gameobjects and making everything ready for multiplayer games. I talked about how to connect a render pipeline to the engine and also about deferred rendering and lightprepass renderer. You can watch the slides here:

Or download as pdf. You can also watch my talk here.

Disco Lights

Clemens — Tue, 15 Dec 2009 21:40:00 +0000

Here it is, the first shots with multiple lights in nice colors… Christmas time! Also note the slight depth blur in the second shot…

still no shadows

Vergence SSAO improvements

Clemens — Wed, 04 Nov 2009 20:26:53 +0000

I am currently improving the visual quality and performance of the deferred rendering system for the Vergence Game Engine. Here are some shots showing the screen space ambient occlusion we use. A really good trick is to use a very small random texture (4×4 in my case) so you can blur out the noise easily. I use four blur passes with a simple depth weighted cross filter, which runs super fast. Varying the blur kernel size over the passes gave me a stable result without any visible noise artifact.

Next step will be view frustum culling (oh yes we don’t have the simple things ) and then hopefully get the multithreaded rendering system working. While profiling I recognized our HDR-Bloom is pretty expensive too. I will work on that later.

Gamesday 09

Clemens — Sat, 31 Oct 2009 08:31:34 +0000

Yesterday I gave a presentation at the gamesday at my university. The talk was about realtime lighting, especially about deferred and light prepass rendering. You can watch the slides here:

Or download as pdf

As soon as the videostream is ready, I will post the link here.