![]() ![]() ![]() Using a lower screen percentage (or lower resolution) and then upscaling it is called upsampling. ![]() The Primary Spatial Upscale (or primary screen percentage) works by rendering the screen resolution at a percentage of the screen and then scaling it to fit your current screen resolution. Secondary Spatial Upscaling does a second and final spatial upscale pass, independently of the Primary upscaling pass. It is based on the idea of rendering a frame at a lower resolution and then upscaling it before the user interface (UI) is drawn. Primary Spatial Upscaling is the same screen percentage that has been used previously. Prior to Unreal Engine 4 (UE4) version 4.19, you only had to change the screen percentage, but it has now been split into two types of scaling during the rendering pipeline: Primary and Secondary Spatial Upscaling. Being able to adjust the screen percentage enables your games to maintain a balance between performance and image resolution quality. Screen Percentage is a resolution scaling technique used to render a lower or higher resolution image than what is actually being presented. Most of this will directly affect those developing projects for Virtual Reality (VR) which will break backward compatibility in most cases. The release of Unreal Engine 4.19 makes some significant changes to how Screen Percentage works. ![]()
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January 2023
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