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Maarten Vis

Spotty lighting

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Hi guys,

 

I've been working on a render and I keep getting these spotty patches on the surfaces. I've used the physical render engine with primary method irradiance cache and secondary method light mapping, samples high and also physical sampling quality high. I've tried other settings but they keep appearing. 

 

Hope someone can help!

 

Thanks!

 

Maarten 

LBG_282_10_02.jpg

Edited by Cerbera
Moved to Correct Section (Physical Render)

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Please update your profile to show which version of Cinema you are running. Very difficult to help if we don't have the most basic information.

 

CBR

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  • Done! Sorry about that. I am new(ish) here. 

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    Ok, try changing Irradiance Cache to QMC, and samples therein to Low

     

    CBR

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  • Well I did as you suggested, and the good news is the quality is great. The bad news is it took 16,5 hours to render on 2400 x 1600 resolution on my MacBook Pro (15-inch, 2017) with 3,1 GHz Intel Core i7.

     

    I used QMC primary with Light mapping as secondary method. Samples low. And in Physical sampler settings on adaptive and quality on medium.

     

    I realise the rendering time depends on so many different factors, but if you have any general tips for speed they would be much appreciated!

     

    Thanks!

     

    Maarten

    LBG_282_10_QMC.jpg

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    Yep, you've lost the spots, but now there are other issues (see where wall meets ceiling panel where sink meets wall etc).

     

    Physical should be Adaptive / Automatic - if you have that set to Medium, then even the areas that don't need the detail get calculated as if they do. QMC unquestionably takes longer than IR, but I can't believe we can't get render time down to at least a quarter of the 16 hours this took.

     

    Can't say more than that without seeing all your render / GI settings / looking at the scene file. If you do upload that please do save with assets so we get all the textures as well (if any of those are bitmap based).

     

    CBR

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  • Hi CBR,

     

    Attached the render settings I used. The C4d folder is pretty huge so I did not upload that for now. 

     

    Thanks! 

    Maarten

    Screenshot 2019-10-16 at 20.33.59.jpg

    Screenshot 2019-10-16 at 20.34.11.jpg

    Screenshot 2019-10-16 at 20.34.04.jpg

    Screenshot 2019-10-16 at 20.34.16.jpg

    Screenshot 2019-10-16 at 20.34.20.jpg

    Screenshot 2019-10-16 at 20.34.25.jpg

    Screenshot 2019-10-16 at 20.33.35.jpg

    Screenshot 2019-10-16 at 20.33.29.jpg

    Screenshot 2019-10-16 at 20.30.19.jpg

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  • Hi @Cerbera. Did you get a chance to look at these settings? I'm curious to see whether I can improve on the render times.

     

    Thanks!

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