Redshift Render - cannot get lit fog to work

[Anthony Neary]

Hi all, for the life of me I can't figure out why lit fog is not working for me.

 

- Background has lit fog engaged at 20% with smooth consistency

- Background is assigned to the Render Style set for Redshift type

- indirect lighting set as exterior 1 bounce for faster test renders

- Lighting is set as Ambient Lighting 5%

- Ambient occlusion on at 50% strength at 4'

- shadows are engaged

- textures are engaged

- colors are engaged

- denoise and camera effects not turned on

- all of my lights right now are Spotlight objects

- via the Edit Light menu - lights are all set to cast shadows, lights all set for soft shadows, lights all set for lit fog, not using emitter but just using the regular brightness, falloff set to smooth

 

I can see the beams in the fog in OpenGL but they won't render in Redshift.

 

I am at a total loss, but I must be doing something wrong somewhere.

 

Thoughts?  Thanks all.

[TomWhiteLight]

Redshift will render lights in a very different way.

I just played with this...

Try increasing the lit fog percentage in the render-works background.

In my experience render works is better than redshift for Spotlight Lighting Devices. Although there will be a new alternative for Spotlight coming in 2025.

[Dave Donley]

28 minutes ago, TomWhiteLight said:

Redshift will render lights in a very different way.

I just played with this...

Try increasing the lit fog percentage in the render-works background.

In my experience render works is better than redshift for Spotlight Lighting Devices. Although there will be a new alternative for Spotlight coming in 2025.

 

I helped Anthony with this, same idea - lit fog percentage increased shows fog more prominently.  Setting spotlight render options to have lights with Realistic falloff got the lit fog in Redshift to agree with Shaded much better.  We are working on resolving differences between the various rendering options wrt lights and textures moving forward.

 

 

[Anthony Neary]

Sorry folks, I posted a followup in the rendering forum but not here.

 

As David mentions above my issue was fog density.  Redshift needs a denser fog for the same look vs RW renders, so just needed to crank up the density.  I also had smooth falloff, and realistic seems to be doing better results.

 

Thanks for the help David, it was much appreciated.

[Dave Donley]

@Anthony Neary We have fixed smooth falloff for Redshift lit fog in the next major release.