When i render a scene using spot lights and media and surface normals on
some surfaces (in a room) I get bright white dots appearing in the
reflections and media.
They are brighter then anything else in the scene and look like artifacts or
bugs.
I have increased the trace level to 15 and the render messg. says it only
traces to 13 so thats covered.
Ive also tried moving the camera and turing the floor normal (worst
offender) off, and this helped a little,
but i think its the media..
Is it the light attenuation and interaction ?
I new to pov (8 mths) and this is my first post so please be nice :)
thanks in advance.
Sean

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> I have increased the trace level to 15 and the render messg. says it
> only traces to 13 so thats covered.
Have you set trace_level or max_trace_level? They are different
settings, and max_trace_level is the one you want. This confuses a lot
of people, so it is the first thing to check.

Daniel

-- 
A most peculiar man    With the windows closed      And Mrs Reardon says
He died last Saturday  So he'd never wake up  He has a brother somewhere
He turned on the gas   To his silent world   Who should be notified soon
And he went to sleep   And his tiny room    .oO( http://sad.istic.org/ )

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Daniel Hulme <pho### [at] isticorg> wrote:
> > I have increased the trace level to 15 and the render messg. says it
> > only traces to 13 so thats covered.
> Have you set trace_level or max_trace_level? They are different
> settings, and max_trace_level is the one you want. This confuses a lot
> of people, so it is the first thing to check.
>
> Daniel
Hi Daniel, Yep the max trace is 15.any other ideas would be a help?
Im using scattering media

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> When i render a scene using spot lights and media and surface normals on
> some surfaces (in a room) I get bright white dots appearing in the
> reflections and media.

Can you eliminate things in your scene and make the problem go away? Does
removing the media fix it? The reflective textures? See if you can isolate
the problem.

You might also want to post an image in povray.binaries.images since people
might be more likely to recognize it as something they've seen before.

 - Slime
 [ http://www.slimeland.com/ ]

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I set the quailty to 8 to turn off media (no radiosity on yet) and this
fixed the problem..
but also took out all the effects :(
It is one spotlight thats causing the effect but just when i have it sorted
I move the camera and there it is again..
So it looks like its back to the drawing board on the media part I think

Thanks guys.

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I have changed the media type (for scattering) from Rayleigh to isotropic
and this seems to have eliminated the dots in the test area so now i`ll
redo the full scene render and see what it looks like.

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