Intriguing aurora

Started by zzu, November 22, 2016, 05:10:11 AM

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Oshyan

Just use a very soft density shader and make sure Taper Top and Base is enabled. It should falloff naturally. If you position the layers to overlap a bit in heights, they should blend.

- Oshyan

zzu

#16
but how to let it only glow in the dark side? Hehe, I think using the edge intersection of dark and bright is good enough, it has a more interesting look. I think in the future, Terragen should integrate an Airglow shader, just like cloud shader to complete the Earth, :)

Dune

You could also perhaps experiment with a set of colored distance shaders, set at different distances from the center of the planet to overlap colors, with a camera at that center. Feed into final of the one cloud layer.

zzu

sounds too complicated for me, could you simply it for me by providing a tgd file, haha.

Dune

Quote from: zzu on November 23, 2016, 02:14:58 AM
sounds too complicated for me, could you simply it for me by providing a tgd file, haha.

I'll try now...

Dune

My online machine isn't the fastest (and only 32-bit), so I can't test it properly, but this is the idea.

zzu

I appreciate you putting time into this Dune. Now this works at night time, but atmosphere shader has to be turned off, which is pity considering how beautiful it is. And It seems the red color can't come out no matter what parameter I adjusted :(

AP

Another idea. You can add more cloud layers for the other colors and alter the layer altitude to what will work best. The urban lights are aligned with day into night using the same mask as the air glow.

zzu

#23
Bravo, AP. You just solved it, really appreciate it. Here is a video capture from ISS, https://www.youtube.com/watch?v=7G6uTCNvwMY

Btw, I think it's incorrect to line up the airglow with our atmosphere, the airglow is above the atmosphere I believe.

AP

#24
Quote from: zzu on November 23, 2016, 05:09:51 AM
Bravo, AP. You just solved it, really appreciate it. Here is a video capture from ISS, https://www.youtube.com/watch?v=7G6uTCNvwMY

Btw, I think it's incorrect to line up the airglow with our atmosphere, the airglow is above the atmosphere I believe.

Welcome.

Just follow the image I posted the other day. It is just a matter of altering the altitude according to the reference image.

http://www.planetside.co.uk/forums/index.php/topic,22462.msg226501.html#msg226501

Oshyan

That looks excellent AP!

- Oshyan

AP


zzu

I did one more render, looks good!


zzu

of course, comp is the way to go. Don't try too hard inside Terragen haha.

AP

A very nice outcome.

Are you going to change the urban lights using a earth city lights?

If you do.

http://www.solarsystemscope.com/nexus/textures/tc-earth_texture/