From 72408f30d5accbf302fde65de6e33b255744100b Mon Sep 17 00:00:00 2001
From: dy <df.creative@gmail.com>
Date: Fri, 21 Sep 2018 14:21:35 +0300
Subject: [PATCH 1/5] Enable tablet

---
 package.json | 2 +-
 scene.js     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index 2652106..aff27ce 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "gl-shader": "^4.2.1",
     "gl-spikes3d": "^1.0.3",
     "glslify": "^6.1.0",
-    "is-mobile": "^0.2.2",
+    "is-mobile": "^1.1.1",
     "mouse-change": "^1.1.1",
     "ndarray": "^1.0.16"
   },
diff --git a/scene.js b/scene.js
index 93b22b7..99cbce4 100644
--- a/scene.js
+++ b/scene.js
@@ -12,7 +12,7 @@ var drawTriangle = require('a-big-triangle')
 var mouseChange  = require('mouse-change')
 var perspective  = require('gl-mat4/perspective')
 var createShader = require('./lib/shader')
-var isMobile = require('is-mobile')()
+var isMobile = require('is-mobile')({ tablet: true })
 
 function MouseSelect() {
   this.mouse          = [-1,-1]

From 5d1997938074844884ae27c27c2c0a8904c597e6 Mon Sep 17 00:00:00 2001
From: dy <df.creative@gmail.com>
Date: Sun, 30 Sep 2018 22:30:28 +0300
Subject: [PATCH 2/5] Bump is-mobile

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index aff27ce..150ab0d 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "gl-shader": "^4.2.1",
     "gl-spikes3d": "^1.0.3",
     "glslify": "^6.1.0",
-    "is-mobile": "^1.1.1",
+    "is-mobile": "^2.0.0",
     "mouse-change": "^1.1.1",
     "ndarray": "^1.0.16"
   },

From b62dc8f6a66b54f55894dee2a515452251435849 Mon Sep 17 00:00:00 2001
From: dy <df.creative@gmail.com>
Date: Mon, 8 Oct 2018 18:07:59 +0300
Subject: [PATCH 3/5] Fix iOS/iPad flickering

---
 scene.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scene.js b/scene.js
index 99cbce4..b4e961e 100644
--- a/scene.js
+++ b/scene.js
@@ -745,8 +745,9 @@ function createScene(options) {
     if(stopped || scene.contextLost) {
       return
     }
-    requestAnimationFrame(render)
+    // this order is important: ios safari sometimes has sync raf
     redraw()
+    requestAnimationFrame(render)
   }
   render()
 

From 0a0fff7b90f562bd8cd7b4da728d79364e107ff9 Mon Sep 17 00:00:00 2001
From: dy <df.creative@gmail.com>
Date: Mon, 8 Oct 2018 20:49:56 +0300
Subject: [PATCH 4/5] Preserve drawing buffer

---
 scene.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scene.js b/scene.js
index b4e961e..43eac2a 100644
--- a/scene.js
+++ b/scene.js
@@ -80,7 +80,8 @@ function createScene(options) {
     gl = getContext(canvas,
       options.glOptions || {
         premultipliedAlpha: true,
-        antialias: true
+        antialias: true,
+        preserveDrawingBuffer: true
       })
   }
   if(!gl) {

From 6c1e17ea9f4cb76e5d05a6c820a0f2bc1881c917 Mon Sep 17 00:00:00 2001
From: dy <df.creative@gmail.com>
Date: Wed, 10 Oct 2018 12:43:36 +0300
Subject: [PATCH 5/5] Make preserveDrawingBuffer mobile-specific

---
 scene.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scene.js b/scene.js
index 43eac2a..012afd3 100644
--- a/scene.js
+++ b/scene.js
@@ -81,7 +81,7 @@ function createScene(options) {
       options.glOptions || {
         premultipliedAlpha: true,
         antialias: true,
-        preserveDrawingBuffer: true
+        preserveDrawingBuffer: isMobile
       })
   }
   if(!gl) {