From 9d6d68f00a154796682589458bce944f7b58dc14 Mon Sep 17 00:00:00 2001
From: raysan5 <raysan5@gmail.com>
Date: Tue, 12 Jul 2016 18:44:45 +0200
Subject: [PATCH] Support VR mode disable on Oculus device

---
 src/rlgl.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/rlgl.c b/src/rlgl.c
index b50e1a459..1d5d61579 100644
--- a/src/rlgl.c
+++ b/src/rlgl.c
@@ -2671,7 +2671,17 @@ bool IsVrDeviceReady(void)
 // Enable/Disable VR experience (device or simulator)
 void ToggleVrMode(void)
 {
-    vrEnabled = !vrEnabled;
+    if (vrDeviceReady || vrSimulator) vrEnabled = !vrEnabled;
+    else vrEnabled = false;
+    
+    if (!vrEnabled)
+    {   
+        // Reset viewport and default projection-modelview matrices
+        rlViewport(0, 0, GetScreenWidth(), GetScreenHeight());
+        projection = MatrixOrtho(0, GetScreenWidth(), GetScreenHeight(), 0, 0.0f, 1.0f);
+        MatrixTranspose(&projection);
+        modelview = MatrixIdentity();
+    }
 }
 
 // Update VR tracking (position and orientation)
@@ -3745,12 +3755,12 @@ static void SetStereoConfig(VrDeviceInfo hmd)
 
 // Set internal projection and modelview matrix depending on eyes tracking data
 static void SetStereoView(int eye, Matrix matProjection, Matrix matModelView)
-{   
+{
     if (vrEnabled)
     {
         Matrix eyeProjection = matProjection;
         Matrix eyeModelView = matModelView;
-        
+
 #if defined(RLGL_OCULUS_SUPPORT)
         if (vrDeviceReady)
         {