Random Light Refractions in Renderings

[Corbin Dallas]

I'm having trouble with my fixtures shooting out light shrapnel. Ive got a series of Selecon Aurora Flood lights that are fine and clean in shadow (openGL) mode. But when I preview them in Fast Renderworks or Final Quality Renderworks I get these weird light refractions. Any ideas?

 

[Dave Donley]

Hello @Corbin Dallas my first thought is the lights might be set to have soft shadows.  The dark pixels can happen when some raytraced samples are blocked but others are not, when the shadow is sampled to make it look soft.

 

[Corbin Dallas]

I just checked and Soft Shadows for the lights is turned off. For funsies I tried turning both Lit Fog and Soft Shadows on independently but my results remained concurrent. Random light shrapnel. I also copied the fixtures and stadium objects to a new document and had the same issue. So it's not a problem with the document or rendering settings. I'm rather new to Vectorworks and not sure even how to begin troubleshooting this issue. 

[Dave Donley]

@Corbin Dallas If you can send me a simple version of this file that shows the problem I would like to take a look.

[JBenghiat]

Renderworks is incorrectly rendering projected images (which includes shutter cuts) for render lights with wide Beam angles. I've had this confirmed as a bug. I believe it was introduced in SP2 or SP3. Shaded and Redshift behave as expected.