# MetalFX Boost your Metal app’s performance by upscaling lower-resolution content to save GPU time. ## Overview The `MetalFX` framework integrates with to upscale a relatively low-resolution image to a higher output resolution in less time than it takes to render directly to the output resolution. ![A timeline diagram that compares a traditional rendering timespan and compares it to a MetalFX upscaling timespan. The MetalFX upscaling method, which renders at a lower resolution and then upscales to the final resolution with MetalFX, takes about half the time traditional rendering, which renders directly to the higher, final resolution.](images/com.apple.metalfx/media-4085441~dark@2x.png) Use the GPU time savings to further enhance your app or game’s experience. For example, add more effects or scene details. `MetalFX` gives you two different ways to upscale your input renderings: - Temporal antialiased upscaling - Spatial upscaling If you can provide pixel color, depth, and motion information, add an [`MTLFXTemporalScaler`](/documentation/MetalFX/MTLFXTemporalScaler) instance to your render pipeline. Otherwise, add an [`MTLFXSpatialScaler`](/documentation/MetalFX/MTLFXSpatialScaler) instance, which only requires a pixel color input texture. Because the scaling effects take time to initialize, make an instance of either effect at launch or when a display changes resolutions. Once you’ve created an effect instance, you can use it repeatedly, typically once per frame. ## Topics ### Temporal scaling [Applying temporal antialiasing and upscaling using MetalFX](/documentation/MetalFX/applying-temporal-antialiasing-and-upscaling-using-metalfx) Reduce render workloads while increasing image detail with MetalFX. [`MTLFXTemporalScaler`](/documentation/MetalFX/MTLFXTemporalScaler) An upscaling effect that generates a higher resolution texture in a render pass by analyzing multiple input textures over time. [`MTLFXTemporalScalerDescriptor`](/documentation/MetalFX/MTLFXTemporalScalerDescriptor) A set of properties that configure a temporal scaling effect, and a factory method that creates the effect. ### Spatial scaling [`MTLFXSpatialScaler`](/documentation/MetalFX/MTLFXSpatialScaler) An upscaling effect that generates a higher resolution texture in a render pass by spatially analyzing an input texture. [`MTLFXSpatialScalerDescriptor`](/documentation/MetalFX/MTLFXSpatialScalerDescriptor) A set of properties that configure a spatial scaling effect, and a factory method that creates the effect. [`MTLFXSpatialScalerColorProcessingMode`](/documentation/MetalFX/MTLFXSpatialScalerColorProcessingMode) The color space modes for the input and output textures you use with a spatial scaling effect instance. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)