[Radiance-general] masking openings

[Ignacio Munárriz]

Chris, changing the variable distance, you can create a mask with the
objects till that distance, i dont know if it's what you need


vwrays -x 200 -y 200 -vf myview -ff \
|rtrace -oL -fff -x 200 -y 200 simple.oct\
|pvalue -r -df -b|pcomb -e 'lo=if(gi(1)-distance,0,1)' - > image.pic

----- Original Message -----
From: "Jelle Feringa // EZCT / Paris" <jelle.feringa at ezct.net>
To: <radiance-general at radiance-online.org>
Sent: Wednesday, February 09, 2005 3:57 PM
Subject: [Radiance-general] masking openings


> Chris,
>
> I'm familiar with the pcomb technique as found on the radiance-wiki, but
am
> lost in how to generate a 0/1 image where a 0 is outputted when a ray hits
> sky. Would it be necessary to write a radiance functional language script
> (.cal) for doing such?
>
>
>
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