night scene with ies lights

[alemanda]

Did anybody face the challenge to render a complex night scene (around 1 mln of poligons) with (many) ies lights (let's say around 30 ies lights)?
What are the settings to prevent very bad artifacts in lighting?
Is the render time still reasonable (reasonable = 4 to 6 hours for a 2000x1500 picture)?

[alemanda]

this is a very small part of the scene ... just 5 ies lights and I cannot get a decent result in lighting.
How to achieve a decent result?
I tried changing the Irradiance Cache parameters and I put the interpolation method in least squares, density high... but nothing.
Method is IR. QMC seems to take too long time and the result, even if is the most accurate, is too grainy.
Any help is highly appreciated.

[Erwin Edel]

Maybe the test scenes used in the youtube tutorials are helpful for settings.

http://www.graphisoft.com/archicad/archicad-18/rendering/#sample-project

You can export the cinerender settings as scenes and import them to your project to try out.

Not sure about IES lights yet. I haven't done any serious interior rendering yet at that level.

[alemanda]

Thanks.
Due to a tight deadline I cannot conduct more tests because I have to deliver some pictures ... so at the moment I give up.
But I will be back.
Having a good (?) renderer inside archicad speeds up the workflow. So I'll be back with more tests.