Hi,
I found some artefacts with UE4 when rendering using metal. More specifically, look at the following screenshot:
This is rendering on the device WITHOUT metal, and matches the mobile preview in the editor. The following, instead, is the same scene rendered on the device with metal enabled:
As you can see, there seem to be a problem with texture coordinates, but I don’t understand why. I am using UE4 4.8.1 on Mac OS X Yosemite, and the
device is an iPhone 6 with IOS 8.4.
The material applied to the wall is quite simple:
Also, in both cases (i.e. with and without metal), the sun of the BP_Sky_Sphere blueprint is rendered incorrectly, as a few moving dots:
Any help is appreciated, thanks!