Can't change the colour of the sun

[BrianDroy5657]

I can't seem to change the colour of the sun. Its stuck on a strange shade of brown.

Also I created a new material. It was a shade of grey metalic paint. Except that it appears to have a red tint.

Any ideas?

[Victoria.Studley · Accepted solution]

Hi Brian,

If you change the system variable LIGHTINGUNITS to "0", you should be able to change the sun color.

For reference, the options for this system variable are:

0: No lighting units. Standard lighting enabled.

1: American lighting units (foot-candles). Photometric lighting enabled.

2: International lighting units (lux). Photometric lighting enabled.

Please let me know if this fixes the issue for you.

[rhw]

Changing lighting units to 0 allows for the sun color to be changed.

[BrianDroy5657]

Briliant! Thats much better thanks! This has been driving me nuts.

You're a genius Victoria

[rsuverk · Accepted solution]

Where do OI find lighting units?

[David_W_Koch · Accepted solution]

@rsuverk 

Type LIGHTINGUNITS at the command line, and press the ENTER key.  It is a system variable.

[tshelleman]

So, in newer versions of AutoCAD, LIGHTINGUNITS can't be changed to 0.  So, then the original question: how do I change the sun color?

[pendean]

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@tshelleman wrote:

So, in newer versions of AutoCAD, LIGHTINGUNITS can't be changed to 0.  So, then the original question: how do I change the sun color?

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In current releases the color of the sun changes with the day/time, no other option exists.

The alternative you have is to turn off the sun and create a distant light instead.

And for your follow-up question https://forums.autodesk.com/t5/autocad-forum/how-to-change-sun-colour/m-p/9404046#M1014727