Rendering video takes too long to complete


https://forum.reallusion.com/Topic426266.aspx
Print Topic | Close Window

By Parthoo - Last Year
Hello,

I rendering video of 2650 frames. It takes very long time to process, is there anyway to make it faster?.
Using Mac OS X 10.11.6
render settings: mov file,  1080p, H.264 codec

 


By Parthoo - Last Year
2500 frames@3 seconds..., is really super fast on windows.
I will upgrade my mac and try again, if issue still persists,  i will switch to WINDOWS Smile

By justaviking - Last Year
@Gary - Glad you got it running better.

When you do shop for a new card (new system?), start with 8GB of VRAM as a good target.  Also iClone does benefit from Nvidia cards, so a GTX 1070 is a minimum recommendation, and a GTX 1080 and up is good advice.

I wish Nvidia had more 12GB and 16GB cards available at "reasonable" prices.  AMD is good ad selling cards with more memory, but some iClone features like Global Illumination (I think that's one) really need Nvidia cards.  And if you ever want to use Iray, you can run if slowly on your CPU or "quickly" on your Nvidia card (AMD cards don't support it, but it will still run, but only on your CPU).

Happy iCloning.  Smile
By Peter (RL) - Last Year
What is a long time? If you let us know how long it took we can run some comparisons.
By garry.smout - Last Year
Tried my first render since re-installing iC.7 (thanks Peter RL!) and it was so slow I gave up and did a test render of just 34 frames. 40 minutes later it had manged 25 frames. Gave up again! The scene is basic - about 5 trees, snow, 3 avatars in idle mode. There is some light effect, but hell, if you can't do that what is the point! Running, from fresh start, i.e no other programs in background, Windoze 10, Intel Core i7 6700 2.60GHz, 16 RAM. I remember some years back I had a similar issue which involved switching something off but can't find that thread! Annoyed!
By Parthoo - Last Year
Hi Gary,

Thanks for your update. yes,  I will upgrade my mac to latest version.
Currently I have 30 GB,

Attached my mac config,https://forum.reallusion.com/uploads/images/bef77916-1e51-45b2-b0a7-28c1.png
By garry.smout - Last Year
Thanks for pointing that out! I was going by the thread - was searching in i7- and didn't notice that it had changed! I find searching the forum extremely difficult with illogical results, a point I think I have raised before. Will try again on correct forum as that might offer the 'switch off' option I was hunting! You have helped me in the past, so thanks for this and I wish you a happy festive season!
By garylearntech - Last Year
Hi Parthoo

Okay, that sounds not too bad.  30GB free disk space and 16GB of RAM.  Freeing up used memory by not running any other apps or background utilities might help and is fairly easily done.

Please don't jump in and upgrade to Catalina just on the basis of my comments!  There are other issues should be considered as well, before making that decision.  If you do decide to go down that path just now, make sure you've got at least one if not two good full backups, just in case other issues crop up and you decide that you want to revert to your previous configuration.

One other thought occurred to to me last night after writing my previous post.  Unless this is you trying to render your final video, consider rendering it at a lower resolution if this is you just generating a preview video.  I might be wrong but I guess this would be less demanding and should complete sooner…

Good luck!
By garry.smout - Last Year
@justaviking Graphics card is GeForce GTX 970m. Has worked in the past!!!
By Parthoo - Last Year
Hi Gary,

Thanks again for your reply.  sure. I will think about upgrade after my first elearning project finished. I am trying  to complete before Xmas begins Smile

By justaviking - Last Year
Thanks for the model of your graphics card..  I looked up the specs, and the "3GB" of VRAM concerns me.  How much video memory is your scene using?  You can have iClone tell you, and for more information I recommend "GPU-Z" ("G" for "Graphics").  It's free and will tell you a lot about what your GPU is doing.

If your project exceeds your VRAM size, performance will plummet.  Even though your project isn't "large," the trees and stuff can eat up a surprising amount of memory in a hurry.

If nothing else, a tool like GPU-Z is a good way to rule out potential bottlenecks.
By garylearntech - Last Year
Hi Parthoo - the specification of your Mac is another factor that can make a considerable difference to the render time.  You mention that you're still using Mac OS X 10.11.  macOS 10.15 has just come out, so that suggests that you might be using a comparatively old machine…  Here are a couple of things to consider, that might make a noticeable difference for your project: 
  1. All other things being equal, more RAM (that's computer memory, not hard disk space) will probably help.  If you can't add more RAM just now, try rebooting your Mac and don't run anything else.  Not Mail, not Safari, not anything.  Then launch CA4 and try your render again…
  2. If your free disk space is getting low, that could also impact on the render performance.  (In fact, it's likely impacting on everything you do.)  People will have slightly different opinions, but I'd suggest that if you have less than 20GB free space, then you are beginning to run short on space and need to investigate approaches to free up disk space.  Under, hmm, 10GB free and you probably have general problems.  Under 5GB free and you've got potentially serious problems.
What model of Mac are you using?  Go to  > About This Mac and look for something like "iMac (27-inch, Late 2013)", which is what I have.  Let us also know what that info box says you have for Memory…

There's a lot more anyone could advise you on performance optimisation, but I'll stop here for now!
By justaviking - Last Year
garry.smout (12/6/2019)
Tried my first render since re-installing iC.7 (thanks Peter RL!) and it was so slow I gave up and did a test render of just 34 frames. 40 minutes later it had manged 25 frames. Gave up again! The scene is basic - about 5 trees, snow, 3 avatars in idle mode. There is some light effect, but hell, if you can't do that what is the point! Running, from fresh start, i.e no other programs in background, Windoze 10, Intel Core i7 6700 2.60GHz, 16 RAM. I remember some years back I had a similar issue which involved switching something off but can't find that thread! Annoyed!


What graphics card do you have?  That has a huge impact on iClone performance.
By Peter (RL) - Last Year
Parthoo (11/7/2019)
Hi Peter,

Around 1 hour I estimated. But I did not finish it. I cancelled it as my mac might stop working. I will take backup then try again.

Thanks,


That does seem very slow. I'm not a Mac expert but on Windows a similar project of 2500 frames took me just 3 minutes to render @ 1080p. I would follow the advice of Gary and look into updating your computer and also make sure that you don't have anything else running when you render to video. You could also try dropping to 720p which should help speed up the render process.
By garry.smout - Last Year
@justaviking The scene was taking up 2.2.  Removing all the trees didn't seem to affect it so I deleted everything that was not in the scene including 3 'hidden' avatars and then it finally dropped! I thought if 'hidden' it meant not counted in the render time so decided there must be something wrong or corrupt in the whole project therefore started afresh and it seems to be OK now.  I may have to look at this graphics card issue because you're right; 3GB is not much in the world of iClone etc! Many thanks as I think you cracked it.  
By Parthoo - Last Year
Hi Peter,

Around 1 hour I estimated. But I did not finish it. I cancelled it as my mac might stop working. I will take backup then try again.

Thanks,
By animagic - Last Year
@Garry: You may get more responses when posting in the iClone forum. This is for Cartoon Animator.