rendering lightnings
Author
Hi,
I am looking for a technique to achieve fast rendering of lightnings. I haven't found a lot of resource of the internet.
I am targeting DX9 hardware.
I have seen some nice implementation in the VIP2 demo (demo scene), although the lightnings don't have any branch.
There is also a paper from Nishita, but it is more about cloud lighting.
Does anyone knows some good technique to efficiently render lightnings ?
Thanks for any help,
Gregory
You could try to use a line-mesh built dynamically with a L-system.
Then use a glow effect for the L-system lighting bolt tree.
Doesnt look that bad http://www.selleri.org/Blender/tuts/Lightnings.pdf
and could be easily done realtime.
Then use a glow effect for the L-system lighting bolt tree.
Doesnt look that bad http://www.selleri.org/Blender/tuts/Lightnings.pdf
and could be easily done realtime.
There's a pretty nice DX10 Lightning example in the latest NVIDIA SDK. You don't necessarily need a DX10 card to implement something similar.
Author
thank you guys for the answers. I will have a look at them.
Concerning the nvidia sample, I guess I can port it back to DX9 by moving the GS work to the CPU. I am going to see if that is possible or not (performance-wise).
Concerning the nvidia sample, I guess I can port it back to DX9 by moving the GS work to the CPU. I am going to see if that is possible or not (performance-wise).
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