Render Scale

• Higher resolution rendering reduces aliasing, and makes games appear “sharper”, at the cost of higher GPU usage.
• Lower resolution rendering reduces GPU usage, potentially allowing GPU-bound games and applications to maintain stable framerates, at the cost of making games appear “more jagged” and “blurrier”.

• By default, apps have a render scale of 1.0, corresponding to a resolution of 1680x1760 px per eye
• Setting render scale to 0.8 will change resolution to 1344x1408 px per eye
• Setting render scale to 1.5 will change resolution to 2520x2640 px per eye

UnityEngine.XR.XRSettings.eyeTextureResolutionScale = [value];

(GraphicsSettings.currentRenderPipeline as UnityEngine.Rendering.Universal.UniversalRenderPipelineAsset).renderScale = [value];

• The default resolution (corresponding to a render scale of 1.0) is lower than the physical screen resolution, for every Meta Quest headset. On average, a render scale of ~1.2 corresponds to the physical screen resolution. This means that increasing your app’s render scale up to ~1.2 provides a significant increase in image clarity, since the screen can physically represent all the extra detail. Increasing your render scale beyond the physical screen resolution continues to provide additional clarity, but only at a sub-pixel level.
• An inescapable fact of VR headsets is that your app’s rendered frames must be distorted before they are displayed to the user. This distortion re-samples your frame, causing a slight blur. Increasing render scale reduces the effect of this blur. This can significantly improve clarity of elements near the edges of the screen, which are most distorted.
• Other applications can run at the same time as yours, with different resolutions -- the Horizon OS composites each application together before displaying a final frame to the user. This means that changes to your app’s render scale will not affect the resolution of i.e. system notification popups, or passthrough feed.
• Apps will not be approved for the Horizon Store if their render scale is too low. See VRC.Quest.Performance.4 for render scale thresholds.