Why is the LC Building so different?

[k-arts]

Sometime the Light Cache in my scene only needs 10 minutes to complete. Then a few frames further it needs more then 2 hours to complete the light chache. Is there something wrong ? Its not even a huge change in the camera angle nor is any complex geometry appearing!

really strange


thx for any help.

Ralf

[Candelero]

Can you please send us the scene < nikki@chaosgroup.com > so we can take a closer look. Thanks.

Best regards,
nikki Candelero

[k-arts]

thx

Would it be sufficient if i send you a small part of the file, so u can see the the settings, the animation and materials. The complete file with the hdri might take 100mb.

How large can an attachment be to your email?

thx for the help


ralf

PS: Btw does the problem might have something to do with an animated visibility spinner?

I am preparing a file right now!

[re:FORM]

If your lightcache scale is set to 'world' this might be the problem.... but I assume your using 'screen' scale .

[k-arts]

Light Cache

i am using screen

thx

[Candelero]

Re: thx

Would it be sufficient if i send you a small part of the file, so u can see the the settings, the animation and materials. The complete file with the hdri might take 100mb.

How large can an attachment be to your email?

thx for the help


ralf

PS: Btw does the problem might have something to do with an animated visibility spinner?

I am preparing a file right now!

Yes, just send me a piece of the scene.
Mail attach limit - 8 MB.

Best regards,
nikki Candelero

[k-arts]

You got Mail

I send it, just made the limit with 7.3 MB

cheers

ralf

[Candelero]

Thanks !

Best regards,
nikki Candelero

[Candelero]

@ k-arts

Can you point me some frame numbers which one would render normally quick and another - slow.

Best regards,
nikki Candelero

[k-arts]

Rendertimes

Frame 139 -- 2:17:59
Frame 163 -- 4:56:46


Frame 145 -- 00:20:15
Frame 119 -- 00:14:50


cheers


ralf

Here is a quick screenshot for further detail

[Candelero]

I am doing the LC for the "bad" frames you pointed 139 and 163 just as all the rest ( quick enough ).

Btw, do you have the speed difference in the LC calculation phase or you are refering to the final render-out time ? As the chart you showed says something else.

Best regards,
nikki Candelero

[k-arts]

LC

When rendering the image it seem to me that there is no time difference. The image i am rendering right now (f 159) gives me an estimate of almost 8 hours and is already running 6:30 hours. so it seems to be only the LC buildup to take that long. Just bought 2 new machines just in case, thats why i took me so long to reply

thx for the help

ralf

[Candelero]

Checking the f 159 right now !
LC - calc - 1:17 min

Best regards,
nikki Candelero

[base2studios]

I had this problem recently, as well...I generated my LC and IM calcs separately, saved the solutions down and used backburner to render my frames. The first sequence completed without issue, but on some rare occasions, I'd have the same problem you're having now. I never could figure this out either, and since I was too much under the gun, never got a chance to post the question, sorry. It was my first vray animation, too, so I wasn't entirely sure it couldn't just be attributed to user error

In the end, I just dropped my machine from backburner and rendered the frame independently. I had to recalculate the GI for those frames because the saved solutions just weren't working.

Can't wait to see what you find out.
ME

[k-arts]

Thx for the info

I try it your way now, good thinking, havent thought about it yet. I am under so much pressure right now Probably know what i am talking about. if i get a solution i ll post it


thx

ralf

btw Frame 159 afte 6:40 it started the prepass lol

20 min later frame was rendered, happieness, frolocking...