From e68f69f04719c7c9c65e4262060b8b8537dcc42b Mon Sep 17 00:00:00 2001
From: "Mr.doob" <info@mrdoob.com>
Date: Tue, 20 Jun 2017 16:25:12 -0700
Subject: [PATCH] WebGLRenderer: Added .setDrawingBufferSize(). Related to
 #11374.

---
 src/renderers/WebGLRenderer.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/renderers/WebGLRenderer.js b/src/renderers/WebGLRenderer.js
index 55a2cc493a..f4280148de 100644
--- a/src/renderers/WebGLRenderer.js
+++ b/src/renderers/WebGLRenderer.js
@@ -425,6 +425,20 @@ function WebGLRenderer( parameters ) {
 
 	};
 
+	this.setDrawingBufferSize = function ( width, height, pixelRatio ) {
+
+		_width = width;
+		_height = height;
+
+		_pixelRatio = pixelRatio;
+
+		_canvas.width = width * pixelRatio;
+		_canvas.height = height * pixelRatio;
+
+		this.setViewport( 0, 0, width, height );
+
+	};
+
 	this.setViewport = function ( x, y, width, height ) {
 
 		_viewport.set( x, _height - y - height, width, height )
-- 
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