More minor bugfixes (clear tint color before drawing gizmo, update camera orbit after moving selection)

UI/CGizmo.cpp

@@ -85,6 +85,10 @@ void CGizmo::DrawAsset(ERenderOptions /*options*/, u32 asset, const SViewInfo& /
 
     CGraphics::UpdateMVPBlock();
 
+    // Clear tint color
+    CGraphics::sPixelBlock.TintColor = CColor::skWhite.ToVector4f();
+    CGraphics::UpdatePixelBlock();
+
     // Choose material set
     EGizmoAxes partAxes = pPart[asset].modelAxes;
     bool isHighlighted = (partAxes != eNone) && ((mSelectedAxes & partAxes) == pPart[asset].modelAxes);

UI/CSceneViewport.cpp

@@ -113,7 +113,7 @@ void CSceneViewport::keyPressEvent(QKeyEvent* pEvent)
 {
     CBasicViewport::keyPressEvent(pEvent);
 
-    if (pEvent->key() == Qt::Key_Z)
+    if (!pEvent->modifiers() && pEvent->key() == Qt::Key_Z)
     {
         mCamera.SetMoveMode(eOrbitCamera);
     }

UI/CWorldEditor.cpp

@@ -198,6 +198,9 @@ void CWorldEditor::UpdateGizmoUI()
             mGizmo.SetLocalRotation(mSelection.front()->AbsoluteRotation());
         }
     }
+
+    // Update camera orbit
+    UpdateCameraOrbit();
 }
 
 void CWorldEditor::UpdateSelectionUI()
@@ -272,7 +275,7 @@ void CWorldEditor::UpdateCameraOrbit()
 
     if (!mSelection.isEmpty())
         pCamera->SetOrbit(mSelectionBounds);
-    else
+    else if (mpArea)
         pCamera->SetOrbit(mpArea->AABox(), 0.8f);
 }