From 347e55f37df9739de3bf93067403d3f748bafcad Mon Sep 17 00:00:00 2001
From: Ed Mackey <elm19087@gmail.com>
Date: Fri, 25 May 2018 15:13:48 -0400
Subject: [PATCH] Indicate that a 1.0 to 2.0 upgrade has happened.

---
 lib/updateVersion.js           | 6 +++++-
 specs/lib/updateVersionSpec.js | 1 +
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/updateVersion.js b/lib/updateVersion.js
index f966c43a..6622357b 100644
--- a/lib/updateVersion.js
+++ b/lib/updateVersion.js
@@ -872,8 +872,12 @@ function glTF10to20(gltf) {
     if (!defined(gltf.asset)) {
         gltf.asset = {};
     }
+    if (!defined(gltf.asset.extras)) {
+        gltf.asset.extras = {};
+    }
     var asset = gltf.asset;
     asset.version = '2.0';
+    asset.extras.gltf_pipeline_upgrade_10to20 = true;
     // material.instanceTechnique properties should be directly on the material. instanceTechnique is a gltf 0.8 property but is seen in some 1.0 models.
     updateInstanceTechniques(gltf);
     // animation.samplers now refers directly to accessors and animation.parameters should be removed
@@ -906,4 +910,4 @@ function glTF10to20(gltf) {
     stripTechniqueParameterCount(gltf);
     // add KHR_technique_webgl extension
     addKHRTechniqueExtension(gltf);
-}
\ No newline at end of file
+}
diff --git a/specs/lib/updateVersionSpec.js b/specs/lib/updateVersionSpec.js
index 0f0da1d7..91c356cb 100644
--- a/specs/lib/updateVersionSpec.js
+++ b/specs/lib/updateVersionSpec.js
@@ -33,6 +33,7 @@ describe('updateVersion', function() {
         };
         updateVersion(gltf);
         expect(gltf.asset.version).toEqual('2.0');
+        expect(gltf.asset.extras.gltf_pipeline_upgrade_10to20).toEqual(true);
     });
 
     it('updates a glTF with non-standard version to 2.0', function() {