WebGLRenderer: Update copyFramebufferToTexture function signature (#960)

* WebGLRenderer: Update copyFramebufferToTexture function signature

* Update three.js

Author: Methuselah96

three.js

@@ -441,11 +441,11 @@ export class WebGLRenderer implements Renderer {
      * Copies a region of the currently bound framebuffer into the selected mipmap level of the selected texture.
      * This region is defined by the size of the destination texture's mip level, offset by the input position.
      *
-     * @param position Specifies the pixel offset from which to copy out of the framebuffer.
      * @param texture Specifies the destination texture.
+     * @param position Specifies the pixel offset from which to copy out of the framebuffer.
      * @param level Specifies the destination mipmap level of the texture.
      */
-    copyFramebufferToTexture(position: Vector2, texture: Texture, level?: number): void;
+    copyFramebufferToTexture(texture: Texture, position?: Vector2 | null, level?: number): void;
 
     /**
      * Copies the pixels of a texture in the bounds `srcRegion` in the destination texture starting from the given

types/three/src/renderers/WebGLRenderer.d.ts

@@ -21,7 +21,7 @@ import { Texture } from "./Texture.js";
  * renderer.render( scene, camera );
  *
  * // copy part of the rendered frame into the framebuffer texture
- * renderer.copyFramebufferToTexture( vector, frameTexture );
+ * renderer.copyFramebufferToTexture( frameTexture, vector );
  * ```
  * @see Example: {@link https://threejs.org/examples/#webgl_framebuffer_texture | webgl_framebuffer_texture}
  * @see {@link https://threejs.org/docs/index.html#api/en/textures/FramebufferTexture | Official Documentation}