Indigo Renderer Forum

Hi

I have problem with Sun & Sky Light. I need to tune down sun component (like in cloudy day ).
In indigo demo a could use light layers for sky and sun, but indigo rt don't support light layers. Is there any other way to do this?
I'll try with env map with blue gradient and one mesh light as a sun, but this is not so good I think...

Increase turbidity and then change the white point to something more blue, because increasing turbidity will make Sun/Sky color warmer.

Unfortunately turbidity don't work for me. I show a litle example:
Turbidity, even extremly high affects sky color and slightly soften shadows.
But what I want is to tune strength of sun from completly off. I attach example from yafaray.
On first image thers no sun component (only sky ambient ). Second image: 90% sky, 10% sun. Last: 50/50.
I need something like in LuxRender where exporter give me the ability to set gain for both: sky and sun component

I would like to +1 this.
many times I like the look of a slightly less intense sun when using the physical sun/sky model, or sometimes I want just the sky. but I don't want the additional light layers (and ram) it requires for my final render. adding a gain parameter to the sun and sky would be very useful.

Sorry, SerNick.
Do you know that you can split sun and sky layers, do you?

Indigo RT does not support light layers.

OH SORRY! DIDN'T KNOW THAT!

moderator should delete my post..

I write in first post about Indigo RT don't support light layers. Unfortunately I forget to check it before buying RT
I hope it would change with future releases, because it semms to be very useful feature.

If you're using sketchup you could try this:

1) In Indigo settings set environment from Sun & Sky to Sketchup background (leave 'black' unticked)
2) In sketchup styles, change the model background to a dull grey colour

Not ideal I know, but works to an extent. Images below

Alternatively, do the above but tick 'black' for sketchup background in render settings and then have a massive object somewhere off camera as an emitter to act as your sun which you can set the power of? A bit bodgy, but might work with some trial and error.

Thank You for advice. I tried with env maps and emiters. Yes it work's but is slower and give more noisy renders.

Environment maps can be tricky. Use a lower resolution map for lighting as the higher resolution maps can lead to increased noise.

There are some excellent ones here http://www.openfootage.net that come in high and lowres version.

Thank you! Useful tip. Right now I'am testing hdri's from Your's link and results are good.