Screen Percentage (屏幕百分比）以较低的分辨率来渲染场景并随后对其进行缩放。 该值代表了场景总体分辨率的百分比。
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Welcome to the new Unreal Engine 4 Documentation site!
We're working on lots of new features including a feedback system so you can tell us how we are doing. It's not quite ready for use in the wild yet, so head over to the Documentation Feedback forum to tell us about this page or call out any issues you are encountering in the meantime.
We'll be sure to let you know when the new system is up and running.