RWTexture2DArray

A read/write resource.

Method	Description
GetDimensions	Gets the resource dimensions.
Load	Reads texture data.
Operator[]	Gets a resource variable.

 

You can prefix RWTexture2DArray objects with the storage class globallycoherent. This storage class causes memory barriers and syncs to flush data across the entire GPU such that other groups can see writes. Without this specifier, a memory barrier or sync will flush a UAV only within the current group.

A RWTexture2DArray object requires an element type in a declaration statement for the object. For example, the following declaration is correct:

RWTexture2DArray<float> tex;

Because a RWTexture2DArray object is a UAV-type object, its properties differ from a shader resource view (SRV)-type object, such as a Texture2DArray object. For example, you can read from and write to a RWTexture2DArray object, but you can only read from a Texture2DArray object.

A RWTexture2DArray object cannot use methods from a Texture2DArray object, such as Sample. However, because you can create multiple view types to the same resource, you can declare multiple texture types as a single texture in multiple shaders. For example, you can declare and use a RWTexture2DArray object as tex in a compute shader and then declare and use a Texture2DArray object as tex in a pixel shader.

Note

The runtime enforces certain usage patterns when you create multiple view types to the same resource. For example, the runtime does not allow you to have both a UAV mapping for a resource and SRV mapping for the same resource active at the same time.

 

Minimum Shader Model

This object is supported in the following shader models.

Shader Model	Supported
Shader Model 5 and higher shader models	yes

 

This object is supported for the following types of shaders:

Vertex	Hull	Domain	Geometry	Pixel	Compute
				x	x

 

See also

Shader Model 5 Objects