Godrays above city

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Re: Godrays above city

Postby frankmci » Thu Sep 27, 2018 1:22 pm

frankmci Thu Sep 27, 2018 1:22 pm
Freddy,
I haven't been a Lightwave user since about 1995, so any screenshots from me out of C4D or Maya might just be more confusing. However, Lightwave Guru pointed out that the same tag I mentioned is available in Lightwave. "> LW Node Editor for Octane > Octane Render Target > Environment DayLight > "

What matters is that you need the volumetric tools added to your scene. The Daylight tag is one way of including them directly in a light source, but that's not the only way. Using a Volume primitive will do the same thing in a slightly different workflow, and it can be used with any Octane light source.

I thought your original question was very specific to quickly knocking out some god rays from the sun over a city, but I'm guessing you should spend a little time digging into the more general idea and workflow of volumetric lighting in LW. Here's are a few threads that should at least set you on the path.

viewtopic.php?f=36&t=62563

viewtopic.php?f=36&t=53505&hilit=volumetric

viewtopic.php?f=36&t=59011&hilit=volumetric

Good luck!
- Frank
Technical Director - C4D, Maya, AE, - Washington DC
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Re: Godrays above city

Postby sjonsjine » Fri Sep 28, 2018 9:53 am

sjonsjine Fri Sep 28, 2018 9:53 am
frankmci wrote:Freddy,
I haven't been a Lightwave user since about 1995, so any screenshots from me out of C4D or Maya might just be more confusing. However, Lightwave Guru pointed out that the same tag I mentioned is available in Lightwave. "> LW Node Editor for Octane > Octane Render Target > Environment DayLight > "

What matters is that you need the volumetric tools added to your scene. The Daylight tag is one way of including them directly in a light source, but that's not the only way. Using a Volume primitive will do the same thing in a slightly different workflow, and it can be used with any Octane light source.

I thought your original question was very specific to quickly knocking out some god rays from the sun over a city, but I'm guessing you should spend a little time digging into the more general idea and workflow of volumetric lighting in LW. Here's are a few threads that should at least set you on the path.

viewtopic.php?f=36&t=62563

viewtopic.php?f=36&t=53505&hilit=volumetric

viewtopic.php?f=36&t=59011&hilit=volumetric

Good luck!
- Frank


Thank you so much for your clear answer!

I figured out how it works now, have seen some nice beams, with a medium object or just a medium in the render target, but the problem I have now is that when
I see some godrays, the sun is much too bright, it's or the godrays or the over exposed bright sun, at least in my tries.....

Freddy
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