From c66fa95d4e80db477bc8eca8a4f28639a3e498ec Mon Sep 17 00:00:00 2001
From: Hyblocker <hyblocker@protonmail.com>
Date: Fri, 24 Jul 2026 13:11:22 +0200
Subject: [PATCH] fix: crash when SteamVR isn't running

---
 src/overlay/vr_core.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/overlay/vr_core.cpp b/src/overlay/vr_core.cpp
index 62a7ba7..ee18c7d 100644
--- a/src/overlay/vr_core.cpp
+++ b/src/overlay/vr_core.cpp
@@ -450,6 +450,9 @@ namespace spacecal {
     }
 
     bool VRState::isHmdVirtualDesktop() const {
+        if (!vr::VRSystem())
+            return false;
+
         // VD sets ResourceRoot as "virtualdesktop" on the HMD device
         std::string szResourceRoot;
         vr::ETrackedPropertyError err = getSteamVrPropString(vr::k_unTrackedDeviceIndex_Hmd, vr::ETrackedDeviceProperty::Prop_ResourceRoot_String, szResourceRoot);