This class can only be used in combination with [page:WebGLRenderer.copyFramebufferToTexture]().
[page:Number width] -- The width of the texture.
[page:Number height] -- The height of the texture.
[page:Constant format] -- The format used in the texture.
See [page:Textures format constants] for other choices.
See the base [page:Texture Texture] class for common properties.
See the base [page:Texture Texture] class for common methods.
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]