How to start and stop the rendering of a MTKView

A MTKView constantly renders a shader at the refresh rate of a device (60FPS). To start or stop the MTKView from rendering, set isPaused to true or false.

Oscar de la Hera Gomez
Written by Oscar de la Hera Gomez
First published on 10/11/2023 at 09:59
Last Updated on 10/11/2023 at 10:16
<p>Three flowers that represent Swift, Metal and Xcode side by side. Beneath them sits the text "Start/Stop Rendering."</p>

A MTKView constantly renders a shader at the refresh rate of a device (60FPS). To start or stop the MTKView from rendering, set isPaused to true or false.

SubscribeCheck out our Apple Metal Resources Guide

To learn how to setup an MTKView to draw one or many shapes, consult the article below.

How to draw a polygon in MetalHow to use multiple shaders to draw multiple shapes within a MTKView

Stop Rendering

To stop rendering an MTKView, set the isPaused parameter of the MTKView to true.

self.metalView.isPaused = true

Start Rendering at the Refresh Rate

To start rendering an MTKView, set the isPaused parameter of the MTKView to false.

self.metalView.isPaused = false

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