Hi Neil,

I have had similar puzzling thingies with large file.
Are you using massing nested instances?
You say it is only with older objects? Analyticals? Convert to something
else?
What type of light fixture with what type of shadow? Try changing to
direct. Or spot with raytrace and 0 shadow quality and size. Or increase
the quality.

Try reducing your project to the smallest size where you can still
produce the error. Post it.

chris m

Neil Cooke wrote:

> Third try .... no attachments since these fail. The JPG mentioned is
> at http://www.neico.co.nz/3d/RS3DImageFilesToPrint.html and so is the
> "Guidelines to Getting Image Files to Printers" ... it's not a
> tutorial. Anyway, hoping there's an answer to the Shadow error I've
> run into, Neil Cooke
>
>      ----- Original Message -----
>      From: Neil Cooke
>      To: user-list@light.realsoft3d.com
>      Sent: Wednesday, January 04, 2006 1:43 PM
>      Subject: Shadow Error
>       Second post since the the first didnt make it ... so
>      resampled the jpg. Hi List, Attached JPG shows a render from
>      a perspective camera and on the right an ortho camera.
>      Analytic cylinders show an incorrect dark artifact that is
>      not possible from the lighting. I would like to render this
>      scene in perspective but cant beat this thing. Tried
>      different illumination materials, etc., but all fail . . .
>      although some give strange results within the areas
>      concerned. Only some cylinders imported or copied from an
>      old file show this thing. No artifacts show if I select
>      "doesnt cast shadow" for the objects or "no shadows" from
>      the light ... but while the artifact is gone so too is any
>      scene dynamic. Hoping there's a fairly simple fix since
>      there are about 3,000 of these cylinders in the scene.
>      Meanwhile I'll continue pressing buttons. Neil Cooke
>

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