Problem after first render

[nico]

Hi
i've a problem with all scenes.
After the first of 3 or + render kray is incredibly slow.
so in first render with 10min i've the final - the second 1 or + hour!!
why does this happen?
if close lw and reset all reload scene with 2^ render and i've 10mi first frame -> second as up!!
why!!!

[Janusz Biela]

Do you talk about BAKE GI or normal render animation or still images. More details please.

[nico]

Do you talk about BAKE GI or normal render animation or still images. More details please.

normal render still - 3pic
3 image.
first render 24 min - initial 9.32 am final 9.56 am
second render - initial 9.56 am -> now in render 76% (12.16 am)!!!

[Janusz Biela]

Ok I suspected huge amount of recurse in scene and render just lost with calculation for that. It happen sometimes when you not limit recurse. I would like to see image. Also I can help you with limits for recurse: put this in all Nodes (It is all ready in Eclipse package)
So in Logic you have limitation for recurse - in this case for reflection. I use this limiter non stop. It increase speed rapidly in scenes with many reflection surfaces. So I do not allow render engine calculate reflection in reflection over three times because over 2 times you will not see different. For wooden floor for example I use ONLY ONE or maximum TWO!

Generally it can be situation when render engine "stuck" with calculation of reflection - it can be place when many high reflected surfaces are enough close each with not comfortable angle to camera. This is normal situation and I avoid it by this Logic function.

sc_031.png (9.32 KiB) Viewed 8746 times

Eclipse_metal.srf

(46.31 KiB) Downloaded 221 times

Add this for high reflected surfaces (metal) and tell me it helped or not.

Also problem can be completely somewhere else

[nico]

Need to test this.
It's a restaurant with table, glass and other.
Want see it because now render low resolution but final render 4000*2000....

[Janusz Biela]

Need to test this.
It's a restaurant with table, glass and other.
Want see it because now render low resolution but final render 4000*2000....

I think this is maybe problem: massive recurse calculations (glass, metal)

[ideart]

I have similar problem with almost all scenes, I render one frame in let's say a minute and when I try to render again the same frame or other the render time is multiplied 10 or twenty times. The only cure is to restart lightwave.

[Janusz Biela]

I have similar problem with almost all scenes, I render one frame in let's say a minute and when I try to render again the same frame or other the render time is multiplied 10 or twenty times. The only cure is to restart lightwave.

Ok then, Tell me LW version and Kray version.

It must something extraordinary because I did not notice it. I use LW 11.6.1 + K2.56.
Please check also what type camera you use or Nodes. Also export Kray Setting and share it , I will check it also.

[ideart]

I have similar problem with almost all scenes, I render one frame in let's say a minute and when I try to render again the same frame or other the render time is multiplied 10 or twenty times. The only cure is to restart lightwave.

Ok then, Tell me LW version and Kray version.

It must something extraordinary because I did not notice it. I use LW 11.6.1 + K2.56.
Please check also what type camera you use or Nodes. Also export Kray Setting and share it , I will check it also.

Currently 11.6.2 + K2.56 (had the same problems with K.55 also)
Classic Camera, problem with and without nodes.

[ideart]

This is the point that takes alot to calculate after the first render.

[Janusz Biela]

Ok thx!
I noticed also something strange. I switched now to 2.55 and speed is good. Because I used 2.55 long time and it was not problem then I suspect bug in last Kray.
I will post this to G.

[ideart]

Thank you.

[Janusz Biela]

Ok then, Tell me LW version and Kray version.

It must something extraordinary because I did not notice it. I use LW 11.6.1 + K2.56.
Please check also what type camera you use or Nodes. Also export Kray Setting and share it , I will check it also.

Currently 11.6.2 + K2.56 (had the same problems with K.55 also)
Classic Camera, problem with and without nodes.[/quote]

btw in Path Passes Corner Distance 200% is far too big. With that value you generate Path Tracing photons everywhere so time render will be longer. I think maximum should be 50-75%

[ideart]

btw in Path Passes Corner Distance 200% is far too big. With that value you generate Path Tracing photons everywhere so time render will be longer. I think maximum should be 50-75%

Thanks for the tip, I am often leaning to overkill. I will try your settings.

[Janusz Biela]

here you have good setting.