[Radiance-general] Problem with getting correct irradiance from sky dome

Greg Ward gward at lmi.net
Fri Nov 23 16:33:09 PST 2007


Hi Claus,

If you either increase your -ar setting or set -aa to 0, you will get  
better "contact shadows" as they are called.

Hope this helps.
-Greg

> From: "Claus B. Madsen" <cbm at cvmt.aau.dk>
> Date: November 23, 2007 1:50:17 AM PST
>
> Hi Greg,
>
> thanks for the super advice (and for Radiance :-)
>
> Switching from light to glow solves the irradiance level problem.  
> Now my problem (of course) is: I don't get "slightly dark patches"  
> beneath objects standing on the ground plane as you would expect  
> (due to partial occlusion of the incoming radiance from the sky  
> dome). I.e., this use of glow (I dunno what to set maxrad to since  
> the glow material is not applied to any geometry but just used for  
> an infinitely distant skydome) doesn't allow the Sky dome to cast  
> shadow.
>
> ... eh, and yes ... thanks for teaching me the Ropes of Radiance
>
> Best,
> Claus



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