From 399e57063cc667e01bd52a57e481a93f54e55387 Mon Sep 17 00:00:00 2001
From: "Randall E. Barker" <simstorm@mac.com>
Date: Wed, 18 Mar 2020 11:16:26 -0700
Subject: [PATCH] Don't calculate reorientation matrix when recentering on G2
 (#2973)

Fixes #2853
---
 app/src/picovr/cpp/DeviceDelegatePicoVR.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/app/src/picovr/cpp/DeviceDelegatePicoVR.cpp b/app/src/picovr/cpp/DeviceDelegatePicoVR.cpp
index 68cd7a336..616bdc855 100644
--- a/app/src/picovr/cpp/DeviceDelegatePicoVR.cpp
+++ b/app/src/picovr/cpp/DeviceDelegatePicoVR.cpp
@@ -310,9 +310,7 @@ DeviceDelegatePicoVR::GetReorientTransform() const {
 
 void
 DeviceDelegatePicoVR::SetReorientTransform(const vrb::Matrix& aMatrix) {
-  if (m.type == k6DofHeadSet) {
-    m.reorientMatrix = aMatrix;
-  }
+  m.reorientMatrix = aMatrix;
 }
 
 void
@@ -393,7 +391,11 @@ DeviceDelegatePicoVR::StartFrame() {
 
   if (m.renderMode == device::RenderMode::StandAlone) {
     if (m.recentered) {
-      m.reorientMatrix = DeviceUtils::CalculateReorientationMatrix(head, kAverageHeight);
+      if (m.type == k6DofHeadSet) {
+        m.reorientMatrix = DeviceUtils::CalculateReorientationMatrix(head, kAverageHeight);
+      } else {
+        m.reorientMatrix = vrb::Matrix::Identity();
+      }
     }
     head.TranslateInPlace(m.headOffset);
   }