Excessive Battery Drain Vanilla Macbook Pro Retina UE4 Install
I just started working with UE4. I have a new Macbook Pro Retina 13-inch Mid 2014 CPU 2.6Ghz Intel Core i5, 8GB 1600Mhz DDR3, Intel Iris 1536 mb Graphics, OS X 10.10.2 with 256GB PCIe flash.
Installed UE4 4.7.3 for the first time. I created a default blank blueprint project with Starter Content disabled. I also installed the latest XCode. I updated OS X with the latest updates. There is nothing else installed on this machine. I literally took it out of the box and put UE4 on it. The project consists of a cube, a floor, and a directional light, with a player start object.
Upon switching windows to UE4Editor the CPU fan begins to ramp up speed and my battery drains from a full charge down to 20% in just 2.5hrs. Engine Scalability Settings are all set to Medium by Auto Detect. Effects is the only exception which is set to Low. Real time is disabled in the viewport. There is nothing in my Scene that would cause heavy rendering. I am simply following the getting started tutorials for the editor. I haven't been using the 'Play' feature in the editor either. Note if I switch to another application in the background the fan speed returns to normal. Use Less CPU when in Background is checked in UE4. The cpu fan speed ramp up isn't always dramatic but the impact to battery life is apparent.
Note I use a 13-inch Mid 2011 Macbook Air to run Unity 4 Pro which lasts me 4 - 5 hrs including playing and building my projects for Desktop and Mobile games. I recently upgraded to a Macbook Pro Retina (less than a week old) in hopes to run UE4 while traveling but these performance issues are making it very difficult to use.
Please advise further.
All the best
This is normal behavior for Macs. Things should get better in 4.8, but Slate is quite demanding. You can try limiting your max fps to something like 20 or even 15 to reduce CPU/GPU usage and increase battery life by using the t.maxfps console command. Hope that helps some!
answered Apr 01 '15 at 04:49 PM
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