POV-Ray : Newsgroups : povray.newusers : Lights and Refraction Server Time
27 Nov 2024 21:54:41 EST (-0500)
  Lights and Refraction (Message 1 to 2 of 2)  
From: Dave Bates
Subject: Lights and Refraction
Date: 16 May 2002 12:14:28
Message: <3ce3dae4$1@news.povray.org>
Hello everyone,
     I've been working with Photons, IOR values and lights.

    I have an adaptive light that is set to a location of <2, .5, 0>

    I want this to look through a sphere I have sitting at Origin, but the
light seems to point Straight down..
    do I have to use parallel lights to get this to work, or spot lights?

Thanks
D


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From: bob h
Subject: Re: Lights and Refraction
Date: 17 May 2002 10:45:40
Message: <3ce51794$1@news.povray.org>
When you say "adaptive" I gather you meant area_light is used. If so, you
need the keyword area_light added to the lights photon statement.
Parallel is recommended for cylinder spot light (through media esp.?) but
isn't required for point sources and area lights.
It could be that the area light isn't projecting toward the sphere as you
had expected. If you could post just the script you are using for that light
source it would help a lot to figure out what you're seeing there.

bob h


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