[Sidefx-houdini-list] Rendering artifacts in raytrace

Andy Nicholas andy at andynicholas.com
Wed Nov 7 11:02:31 EST 2007

Okay, thanks Peter. We'll go ahead and do that.



> Hey Andy,
> If you have rendering errors, you should contact SESI direct on
> support at sidefx.com with at least a SEV 2 and possibly SEV 1 if you
> have no workaround. Make sure you give them a .ifd file or .hip file
> (with everything needed to render it!) showing the problem or you'll
> just lose time while they ask you for it. SESI support is awesome, but
> they can't work miracles if the info isn't supplied :)
> Cheers,
> Peter B
>> 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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