[chedda]

I am working on an exterior render. Previously it had rendered just fine even with high grade glass. Now i have worked on the model made changes and introduced emitters. Now the render refuses to clear even when the emitters are muted in the multi light panel. They seem to be whole white pixels which are stuck i let it render overnight to SL 18 but still no joy. Stepping backwards i have isolated the problem, i have removed the emitters and the multi light option it renders just fine ! Is this a known issue or am i doing something wrong ? I guess multi light takes a big hit on render times even when muted ? Perhaps my issue is using emitters in a daytime scene ? By the way this happened in the new & old version of maxwell. I am re rendering without the emitters and multi light the benchmark is almost 3 times higher. I am starting to think this could be connected to the geometries of the emitters. I used a square path, round section created with the pipe along path sketch up ruby.

Chedda

[Mihai]

If you just hide the emitters but still leave ML on, does the bench still drop by 3x? Perhaps the emitters have some geometry problems from the extrusion, but also what is the strength you've set it to? Very high emitter strengths can introduce precision errors. A screenshot would help, of the rendered scene and a viewport view of where the emitters are and what the geometry looks like (a hidden line view).

[Bubbaloo]

Hmmm...

[eric nixon]

The easiness of rendering maxwell exteriors and the easeiness of sketchup is a good synergy... Strange my fist post disappeared. net glitch?

[chedda]

Muting the emitters in the multi light didn't work the benchmark stayed high. My money is on bad geometry in the emitters. Perhaps it was because the emitter intersected geometry ? I think i have read somewhere this is a known issue. I suppose in reality intersections like these just don't happen.

Chedda

(i also noticed a glitch in this thread it posted a new thread (deleted)rather than a reply)

[JDHill]

Hi Chedda, are you using the current (2.6.10) SketchUp plugin? Would it be possible for you to provide a SketchUp file (simplified, if possible) that exhibits the described behavior?

[eric nixon]

To save you time, It sounds like the emitters are intersecting themselves, which would happen if you extrude around a square path without first rounding the corners {a lot}

[JDHill]

Not necessarily; Chedda's last post is ambiguous as to whether emitter geometry is intersecting itself, or other geometry. I can easily create a nice mitered extrusion by sweeping around square corners, so it's not possible to reason about this without seeing his model.

[eric nixon]

I just said it was likely no? the workaround is to use an offset, but its quite helpful that i suggest he checks this no? jeez louise, my first helpful post gets deleted and my second helpful post shot down by the most agreeable person around, does no one like south park?

'screw u guys, I'm going home'

[JDHill]

There's nothing personal here, Eric, I was only explaining why we need to see the file.

[eric nixon]

Yeah I'm just gaffing off, its cool. Actually was in a mood about about tweaking a thin-sss balloon before, but its working now..