[Sidefx-houdini-list] Rendering artifacts in raytrace

Simon Barrick simon at primalpictures.com
Wed Nov 7 10:44:29 EST 2007


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-----Original Message-----
From: sidefx-houdini-list-bounces at sidefx.com
[mailto:sidefx-houdini-list-bounces at sidefx.com] On Behalf Of Andy
Nicholas
Sent: 07 November 2007 15:44
To: sidefx-houdini-list at sidefx.com
Subject: [Sidefx-houdini-list] Rendering artifacts in raytrace


Hi guys,

I'm passing on an issue that one of our artists has with rendering
raytraced reflections and occlusion. It's basically leaving big green
blobs over the render, I've attached a small image to this email to
illustrate (assuming attachments work on this list).

It could potentially cause us a big problem with our schedule so I'm
hoping that someone here has come across this issue before and knows how
to fix it. More info from Drew has been pasted below...

- - -

The problem is directly related to raytracing- affecting the reflection
and occlusion passes- but not evident in the other outputs (ambient,
diffuse, spec etc)

We have changed render settings to try solve the problem, but it seems
what ever setting we have, the issue still arises but at different
frames.

So it makes solving the problem difficult as i fix one frame, thinking
its all good but another set are broken.

help me houdini wizards!!

- - -

Does anyone have any ideas?

Thanks

Andy

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