Light speed interior
Light speed interior
As the title said i open this thread to show some of my work/test with luxcore in interior render. The Purpose here is to render Interior as fast as possible with a good quality.
And i can said i'm pretty satisfied.
Some general workflow tips to render faster interior:
. Tone mapp linear 1 / auto disable
. Sky + sun (make sure they are not linked for easy tune) instead of HDRi (Most of the time HDRi requiert more computational power)
. Use shader Albedo below 0.8
. with sun power >>> 0.0001 / sky 0.0002 you can use a clamp value of ten.
. Sobol + Log power
. Denoiser settings :
Try theses one :
HDT >>>> 0.7
SW >>>>> 8
Scales >>> 4
PR >>>>>> 1
. Switch to Path Ocl and adaptive sampling to 0.95
. Switch to Filmic
Here the results ( not that the dark line in the celling seem to be a numerical precision related issue don't get it Bidir engine)
20 MN render On a 1080 Ti Or R9 390 + 7970 hD combo.
And i can said i'm pretty satisfied.
Some general workflow tips to render faster interior:
. Tone mapp linear 1 / auto disable
. Sky + sun (make sure they are not linked for easy tune) instead of HDRi (Most of the time HDRi requiert more computational power)
. Use shader Albedo below 0.8
. with sun power >>> 0.0001 / sky 0.0002 you can use a clamp value of ten.
. Sobol + Log power
. Denoiser settings :
Try theses one :
HDT >>>> 0.7
SW >>>>> 8
Scales >>> 4
PR >>>>>> 1
. Switch to Path Ocl and adaptive sampling to 0.95
. Switch to Filmic
Here the results ( not that the dark line in the celling seem to be a numerical precision related issue don't get it Bidir engine)
20 MN render On a 1080 Ti Or R9 390 + 7970 hD combo.
Re: Light speed interior
Good tips and nice result.
I guess that the ceiling is an Ngon where the auto-triangulation creates very long and thin triangles. You can probably get rid of this by placing some edges manually (select two vertices and press J).
Re: Light speed interior
I agree, pretty good looking result.
But, was this 20min. at this resolution?
But, was this 20min. at this resolution?
Re: Light speed interior
Good suggestions and good result.
Just one thing:
- why lower the sun&sky intensity and not playing with clamping and tonemapping?
I agree with BYOB about the blakc artifacts
Just one thing:
- why lower the sun&sky intensity and not playing with clamping and tonemapping?
I agree with BYOB about the blakc artifacts
Re: Light speed interior
Thanks !
About dark line : i use a 2D curve geometry for easy modification. do you think your tips could work on it without the need to convert curve into mesh ?
In some test before this project i was able to render interior in just 5mn (recently i'd convert the corona Alpha 4 bench scene for testing and got stuning speed 5mn on GTX 1080 ti without GI caching tech ).
I'm coocking a special free scene for everyone to test.
Re: Light speed interior
Did it take 20 min. on 1080ti to render at 1278x972 resolution?Sharlybg wrote: ↑Thu Aug 16, 2018 1:11 pmThanks !
About dark line : i use a 2D curve geometry for easy modification. do you think your tips could work on it without the need to convert curve into mesh ?
In some test before this project i was able to render interior in just 5mn (recently i'd convert the corona Alpha 4 bench scene for testing and got stuning speed 5mn on GTX 1080 ti without GI caching tech ).
I'm coocking a special free scene for everyone to test.
Re: Light speed interior
Luxcore Sun and Sky use real life value and theses value are extreme. So i turn these value down and adapt my tone map to behave a bit like a renderer like Cycles will do. Lower value help you tips Human friendly clamping number. high sunsky/HDRi EVs force you to work with to high number wich are usefull when you work in a totally unbiased way :
Camera tonemapper + sunsky + realistic artificial light settings.
In fact Luxcore is a True light Simulator it is toughly unbiased. And if you start to work in a way that is different from what a real photograph can do then you're creating new rules "artistics rules" where you adapt everything to your taste.
Re: Light speed interior
Yes ( This can be to long for a corona User i guess ) corona give simillar perf on i7 2600k for interior.Did it take 20 min. on 1080ti to render at 1278x972 resolution?
Re: Light speed interior
I don't know for sure, but 1080ti is a pretty powerful card. And If this was 4K we're talking close to 4 hours of rendering..?
Re: Light speed interior
You could try this modifier combination, it worked in a quick test to create better triangles, but I'm not sure if it works in all cases:
However, in my test even with better triangles the shadows did not go away, in such a case you can raise the min. epsilon in the scene settings: