The WithDepthFormat method is a part of the TextureArrayBuilder class in the Sandbox namespace. This method configures the texture array to use a depth format, which is typically used for depth buffering in rendering pipelines. Using a depth format is essential for operations that require depth testing, such as shadow mapping or 3D rendering where depth information is crucial.

To use the WithDepthFormat method, you need to have an instance of TextureArrayBuilder. This method is chainable, meaning you can call it in a sequence of method calls to configure your texture array before finalizing it with the Finish method.

Example usage:

var textureArrayBuilder = new TextureArrayBuilder();
textureArrayBuilder
    .WithSize(1024, 1024)
    .WithDepthFormat()
    .Finish();

In this example, a texture array is being configured with a size of 1024x1024 and a depth format, and then finalized to create the texture.