On 6-2-2012 22:14, zlacelle wrote:
> I've been messing around with lighting, fog, etc for a large outdoor scene, but
> I can't seem to make good sunlight!
>
With a bit of code it would be easier to see what is missing in your scene.

I generally use this:

//start code
#include "CIE.inc"
#declare SunColor   = Blackbody(6500)*3;
#declare SunAlt     = 60;
#declare SunAzm     = -120;
#declare SunPosition  = <0, 0, -1>*10e6;
#declare SunDis     = vlength(SunPosition)*2/215;

#declare sun =
light_source {
   SunPosition
   color SunColor
   rotate x*SunAlt
   rotate y*SunAzm*clock
   parallel
/*
   area_light
   SunDis*x, SunDis*z, // lights spread out across this distance (x * z) 
        softens shadows, i dont recomend it
   5, 5                // total number of lights in grid (4x*4z = 16 lights)
   adaptive 1          // 0,1,2,3...
   jitter              // adds random softening of light
   circular            // make the shape of the light circular
   orient              // orient light
*/
}

object {sun}
//end code

note that CIE.inc comes with LightSysIV: 
http://www.ignorancia.org/en/index.php?page=Lightsys If you do not want 
to use that, just use your own sun color, e.g. rgb <1,1,1>*2
The SunDistance is a little formula given to us by Cousin Ricky.

Thomas

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