# VrayMeshLights extreme long render times

**URL:** <https://forums.chaos.com/t/vraymeshlights-extreme-long-render-times/44441>\
**Category:** Issues\
**Tags:** vraymeshlights, vraymesh, vraylight\
**Created:** [March 5, 2013, 7:39pm UTC](https://forums.chaos.com/t/vraymeshlights-extreme-long-render-times/44441 "2013-03-05T19:39:11Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![joconnell](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/joconnell/32/36063_2.png) [@joconnell](https://forums.chaos.com/u/joconnell)\
**Post date:** [March 5, 2013, 10:34pm UTC](https://forums.chaos.com/t/vraymeshlights-extreme-long-render-times/44441/4 "2013-03-05T22:34:14Z")

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Righty - so it seems like your AA is doing pretty much all the work here - it actually looks like quite low settings overall.

Could you stick up:

-Your aa min and max  
-Do you have “use dmc threshold” wicked on or off, beside your aa min / max? If so what number is in there?  
-Stick up the reflection subdivs you’re using on floor, ceiling and wall materials?  
-What GI method are you using?  
-Also could you put up a reflection pass, MTL glossiness pass, a raw lighting and a way global illumination pass?

Just trying to find what’s really noisy in the scene.

The light coming from the left of the scene - what’s that from?

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