Rendering On MacBookPro

For all the users of Twilight Render (V1 & V2), to ask questions and get started
Post Reply
pbacot
Posts: 364
Joined: Wed Oct 03, 2012 2:27 am
OS: MacOSXMojave
SketchUp: 2019

Rendering On MacBookPro

Post by pbacot » Wed Feb 05, 2020 6:57 pm

I've often struggled to understand what's going on with rendering on the MBP. If I have rendering going, Power adapter on. "Never sleep" setting, the rendering seems to be going on OK and CPU shows full activity when another program is active. OK. But the fan becomes quiet and the computer is cool...

If I click into SketchUp--and do nothing else. The fan fires up and computer gets hot. render continues of course.

Seems like the CPU also takes some "breaks",, drops down for bit, whatever the active program is.

Fletch
Posts: 12897
Joined: Fri Mar 20, 2009 2:41 pm
OS: PC 64bit
SketchUp: 2016-2023
Contact:

Re: Rendering On MacBookPro

Post by Fletch » Wed Feb 05, 2020 11:35 pm

Unfortunately, it's probably a "thermals" issue common to Macs. It's essentially throttling itself to control heat. Definitely start by getting a good cooling pad under the machine.

pbacot
Posts: 364
Joined: Wed Oct 03, 2012 2:27 am
OS: MacOSXMojave
SketchUp: 2019

Re: Rendering On MacBookPro

Post by pbacot » Thu Feb 06, 2020 12:57 am

I agree a heating pad will be a good idea, especially because I just bought a new -old replacment MBP. (Does anyone have recommendations?) But I wonder why, if Twilight is rendering in the background, does the heat and fan go down. It's only when rendering and having SketchUp active (not doing anything, not even orbiting) that the heat seems to rise.

Is Twilight still rendering just as hard when SketchUp is not the active window? Does simply having SketchUp window active put my machine under stress? It's strange.

Fletch
Posts: 12897
Joined: Fri Mar 20, 2009 2:41 pm
OS: PC 64bit
SketchUp: 2016-2023
Contact:

Re: Rendering On MacBookPro

Post by Fletch » Thu Feb 06, 2020 2:09 am

Difficult to know, possibly the GPU kicks in when you put SU/TWL in the foreground... causing extra heat causing the fan to come on?

Chris
Posts: 5344
Joined: Sun Mar 08, 2009 3:00 am
OS: Win10
SketchUp: 2016

Re: Rendering On MacBookPro

Post by Chris » Thu Feb 06, 2020 1:57 pm

When the Twilight Render window is minimized, the display of the image is performed less frequently. The render is still happening at the same speed, it just isn't updating the displayed image as frequently.

But that is only if the Render window is minimized, not if another window is focused or in the foreground.

pbacot
Posts: 364
Joined: Wed Oct 03, 2012 2:27 am
OS: MacOSXMojave
SketchUp: 2019

Re: Rendering On MacBookPro

Post by pbacot » Thu Feb 06, 2020 4:24 pm

Video makes me dislike my Mac! :lol: I need it for certain software and generally enjoy using it, but if I continue much with rendering I'll just need another machine.

Post Reply

Who is online

Users browsing this forum: No registered users and 17 guests