GodRays from sunlight that lits the scene from behind.

[mtanasiewicz]

Hi,

Have anyone succesfully manage to achieve good loking godrays(volumetric fog) for example inbetween trees, when the sun lits the scene and is not visible in camera? Like when it lits the scene from behing the camera? I'm not a specialist on this case, probably it is not physically correct, but it would look nice :)

[-Ben-Battler-]

It is possible. Read this article at the bottom, there you find how to set up the Global VolMaterial:

https://coronarenderer.freshdesk.com/support/solutions/articles/5000534910-how-to-use-subsurface-scattering-volumetric-absorption-and-scattering-

And in this thread it was discussed as well:

https://forum.corona-renderer.com/index.php/topic,8653.0.html

[mtanasiewicz]

Thanks!

[maru]

It looks like this is possible but requires a lot of experimenting, is not very apparent, and requires setup opposite to what works when sun is facing the camera. :)

[-Ben-Battler-]

If you just decrease the fog distance it should work better, shouldn't it? As long as the cam is still facing the sun and the object which occludes the sun is not too big it should work without problem.

[maru]

Camera is not facing the sun. It is lit from behind, as described in the first post.

[-Ben-Battler-]

Sorry, one should read properly..