openvr: re-upload line texs on show-hide to prevent disappearing lasers

src/backend/openvr/lines.rs

@@ -160,6 +160,12 @@ impl LinePool {
         }
         Ok(())
     }
+
+    pub fn mark_dirty(&mut self) {
+        for data in self.lines.values_mut() {
+            data.state.dirty = true;
+        }
+    }
 }
 
 struct StaticRenderer {

src/backend/openvr/mod.rs

@@ -237,6 +237,7 @@ pub fn openvr_run(running: Arc<AtomicBool>) -> Result<(), BackendError> {
             .iter()
             .any(|p| p.now.show_hide && !p.before.show_hide)
         {
+            lines.mark_dirty(); // workaround to prevent lines from not showing
             overlays.show_hide(&mut state);
         }