How to set drawableSize to a lower size than the view/window

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wasintw OP

Created Mar ’22

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Hi

What's the standard/recommended way to set the MTKView's drawableSize to a size lower than the view/window and, at the same time, be able to update the drawableSize whenever the app's window is resized?

Thanks

Answered by in 708705022

Hi wasintw, MTKView provides drawableSize and preferredDrawableSize properties. Setting drawableSize on MTKView will trigger drawableSizeChanged to be called. Therefor, you would need to set autoResizeDrawable to false if you want to use a custom drawableSize.

When autoResizeDrawable is set to false on MTKView, preferredDrawableSize will still be updated. The preferredDrawableSize property can be observed using a Key-Value observer to determine whether the window was resized. We have a Swift article that explains how to set up a Key-Value observer.

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OP

Apple

Mar ’22

Accepted Answer

Hi wasintw, MTKView provides drawableSize and preferredDrawableSize properties. Setting drawableSize on MTKView will trigger drawableSizeChanged to be called. Therefor, you would need to set autoResizeDrawable to false if you want to use a custom drawableSize.

When autoResizeDrawable is set to false on MTKView, preferredDrawableSize will still be updated. The preferredDrawableSize property can be observed using a Key-Value observer to determine whether the window was resized. We have a Swift article that explains how to set up a Key-Value observer.

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