From dd528c6607244e483d026cec67279c3c80ff7265 Mon Sep 17 00:00:00 2001
From: Chris Loer <chris.loer@gmail.com>
Date: Tue, 23 Oct 2018 16:36:37 -0700
Subject: [PATCH] Workaround for failure to clear depth buffer on some Android
 devices. Fixes issue #3437.

---
 src/gl/context.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gl/context.js b/src/gl/context.js
index 8c183868d65..a21987d7f79 100644
--- a/src/gl/context.js
+++ b/src/gl/context.js
@@ -189,6 +189,11 @@ class Context {
 
         if (typeof depth !== 'undefined') {
             mask |= gl.DEPTH_BUFFER_BIT;
+
+            // Workaround for platforms where clearDepth doesn't seem to work
+            // without reseting the depthRange. See https://github.com/mapbox/mapbox-gl-js/issues/3437
+            this.depthRange.set([0, 1]);
+
             this.clearDepth.set(depth);
             this.depthMask.set(true);
         }