Instance Property

framebufferOnly

A Boolean value that determines whether the layer’s textures are restricted for use as framebuffer attachments.

Declaration

@property BOOL framebufferOnly;

Discussion

If the value is YES (the default), the CAMetalLayer class allocates its MTLTexture objects in ways that are optimized for display purposes. However, you may not sample, read from, or write to those textures. To support sampling and pixel read/write operations on the layer’s textures (at a cost to performance), set this value to NO.

See Also

Configuring the Metal Layer

pixelFormat

The pixel format of textures for rendering layer content.

drawableSize

The size, in pixels, of textures for rendering layer content.

colorspace

The color space of the rendered content.

presentsWithTransaction

A Boolean value that determines whether the layer presents its content using a Core Animation transaction.

wantsExtendedDynamicRangeContent

Enables extended dynamic range values on the screen.

EDRMetadata

Metadata describing the tone mapping to apply to the extended dynamic range (EDR) values in the layer.

displaySyncEnabled

A Boolean value that determines whether the Metal layer and it's drawables are synchronized with the display's refresh rate.

allowsNextDrawableTimeout

A Boolean value that determines whether Metal drawables are allowed to time out or wait indefinitely.

maximumDrawableCount

An integer value that controls the number of Metal drawables in the resource pool managed by Core Animation.