From 1eab6e6c909e39045bd48d10ada8135aca9c406c Mon Sep 17 00:00:00 2001
From: Diego Marcos <diego.marcos@gmail.com>
Date: Wed, 30 Jan 2019 11:32:40 -0800
Subject: [PATCH] Set shader precission to mediump in Mobile. Fix problems with
 Adreno 300 series GPUs and improves perf. (fix #3971, #3523)

---
 src/core/scene/a-scene.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/core/scene/a-scene.js b/src/core/scene/a-scene.js
index 478652886f6..18324357fa9 100644
--- a/src/core/scene/a-scene.js
+++ b/src/core/scene/a-scene.js
@@ -548,7 +548,13 @@ module.exports.AScene = registerElement('a-scene', {
         var rendererAttrString;
         var rendererConfig;
 
-        rendererConfig = {alpha: true, antialias: !isMobile, canvas: this.canvas, logarithmicDepthBuffer: false};
+        rendererConfig = {
+          alpha: true,
+          antialias: !isMobile,
+          canvas: this.canvas,
+          logarithmicDepthBuffer: false,
+          precision: isMobile ? 'mediump' : 'highp'
+        };
 
         this.maxCanvasSize = {height: 1920, width: 1920};