From 0f6663f3148b4f994d58e19590e14c152f1cc2f8 Mon Sep 17 00:00:00 2001
From: Christopher Willis-Ford <7019101+cwillisf@users.noreply.github.com>
Date: Tue, 26 Oct 2021 14:20:36 -0700
Subject: [PATCH] try WebGL 2.0 if WebGL 1.0 fails
---
src/RenderWebGL.js | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/src/RenderWebGL.js b/src/RenderWebGL.js
index d3694cc8..c65e6747 100644
--- a/src/RenderWebGL.js
+++ b/src/RenderWebGL.js
@@ -111,7 +111,12 @@ class RenderWebGL extends EventEmitter {
* @private
*/
static _getContext (canvas) {
- return twgl.getWebGLContext(canvas, {alpha: false, stencil: true, antialias: false});
+ const contextAttribs = {alpha: false, stencil: true, antialias: false};
+ // getWebGLContext = try WebGL 1.0 only
+ // getContext = try WebGL 2.0 and if that doesn't work, try WebGL 1.0
+ // getWebGLContext || getContext = try WebGL 1.0 and if that doesn't work, try WebGL 2.0
+ return twgl.getWebGLContext(canvas, contextAttribs) ||
+ twgl.getContext(canvas, contextAttribs);
}
/**