Island Fliegerlied

Vilem_Otte 117 Feb 12, 2009 at 15:00



I’m showing some progress with my rendering techniques focused on hybrid rendering systems (rasterization + ray tracing … of course). This demo shows off some tricks which I can do with my engine and my real time ray tracer.
Some tech - demo uses some normal mapping of course, dynamic plausible shadows, oren nayar shading model (rocks, sand) and lambert+blinn on wood (airplane). About some more important effects - local indirect lighting and local ambient occlusion (global is just too much for today hardware), reflective/refractive water with caustics (texture), volume shadows and volume soft caustics. Though supersampling isn’t present.
About music - Fliegerlied from Germany - it sings about an airplane and pilot (thats the purpose of plane in demo)

Demo link:
It needs Shader model 4.0 and fast CPU (on some CPUs it uses just one thread … its mine bug, I need to fix it) - raytracing.

Video Link:

I hope you’ll enjoy it.

4 Replies

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starstutter 101 Feb 12, 2009 at 19:37

Nice work Otte!

You’ve never failed to impress with your tech demos :)

I have to ask though, is the graininess a result of the raytracing? Is there a way to smooth the results properly?

EDIT:the video doesn’t seem to have the same static, maybe its just an image problem on this site or my laptop

Reedbeta 167 Feb 12, 2009 at 19:56

The image looks grainy to me too; it’s not just your computer.

Vilem_Otte 117 Feb 17, 2009 at 21:43


the image is grainy, because I captured it before without any kind of “smoothing GI result” implemented.

gjaegy 101 Feb 25, 2009 at 17:21

Hi Otte,

would you mind sharing some technical details about the indirect lightning method you used ?

Very interesting ;)