Texture with 3 dimensions.
Texture3D is a 3-dimensional [Texture] that has a width, height, and depth. See also [TextureArray]. [b]Note:[/b] [Texture3D]s can only be sampled in shaders in the GLES3 backend. In GLES2, their data can be accessed via scripting, but there is no way to render them in a hardware-accelerated manner.
Creates the Texture3D with specified [code]width[/code], [code]height[/code], and [code]depth[/code]. See [enum Image.Format] for [code]format[/code] options. See [enum TextureLayered.Flags] enumerator for [code]flags[/code] options.