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Underwater Godrays

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Underwater Godrays

Unread postby tom_tm » Fri Apr 12, 2019 2:55 pm

Hi,
I try to achieve godrays underwater effect.
Generally I have problems to get the light streak effect within the volume using environmental lights, also with a distant light.

I attached a scene:
http://www.ayashmi.com/Water_Godrays.zip


Thanks Tom
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Re: Underwater Godrays

Unread postby dboude » Mon Apr 15, 2019 12:55 pm

Hi,

Here is a very simple setup to show you a way to do it.

volume_shard.PNG


Volume_Shard.project
(55.57 KiB) Downloaded 70 times


Cheers ;)
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Re: Underwater Godrays

Unread postby dboude » Mon Apr 15, 2019 4:37 pm

volume_shard_env.png


With an env' and some tunning.
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Re: Underwater Godrays

Unread postby tom_tm » Tue Apr 16, 2019 1:38 pm

Hi Démian,
thanks for sharing. Ah I see, you applied a procedural to the light.
I will share my solution where the water surface generates the streaks later.

Greets Tom
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Re: Underwater Godrays

Unread postby tom_tm » Wed Jun 05, 2019 3:05 pm

Again a volume light based question:
Whenever I use the volume box and try to achieve good visible
rays, rest of the image will get a too misy/milky look.
I know that this might be physical accurate, but I need more ray effect and the
rest should look clean.
Is there a simple trick to get a clearer effect?

Thanks Tom
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Re: Underwater Godrays

Unread postby dboude » Wed Jun 05, 2019 3:11 pm

Hi tom,

Use a textured spot with high exposure and set the density of your volume ultra low. It should do the trick.

Cheers ;)
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Re: Underwater Godrays

Unread postby dboude » Wed Jun 05, 2019 3:17 pm

Here is an example :

Image

GodRays_Strong.project
(43.44 KiB) Downloaded 32 times


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Re: Underwater Godrays

Unread postby tom_tm » Thu Jun 06, 2019 4:04 pm

Hi,
thank you, this might do the trick.
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Re: Underwater Godrays

Unread postby dane » Tue Jun 18, 2019 12:49 pm

Demian

Is it possible to get your setup that you can see above, after your tweaking?

I'm doing something very similar
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Re: Underwater Godrays

Unread postby dboude » Wed Jun 19, 2019 12:01 pm

Hi Dane,

I'm on a tour now. I will share it when I come back next week ;)

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