diff --git a/PanoPainter/GameViewController.m b/PanoPainter/GameViewController.m
index ea7d77f..08f02af 100644
--- a/PanoPainter/GameViewController.m
+++ b/PanoPainter/GameViewController.m
@@ -203,15 +203,10 @@ std::set<UITouch*> ignored_touch;
     if (source == kEventSource::Stylus)
         pen_down = true;
     
-//    if (touch.majorRadius > 25.f)
-//        ignored_touch.insert(touch);
-//    NSLog(@"touch down size %f", touch.majorRadius);
-//    [self async_lock];
     std::lock_guard<std::mutex> lock(task_mutex);
     tasklist.emplace_back([touchLocation, scale, f=touch.force, source] {
         App::I.mouse_down(0, touchLocation.x * scale, touchLocation.y * scale, f, source);
     });
-//    [self async_unlock];
     t_count = 1;
     t_pos = {touchLocation.x * scale, touchLocation.y * scale};
 }
@@ -252,7 +247,6 @@ std::set<UITouch*> ignored_touch;
         p1 = glm::vec2(tl1.x * scale, tl1.y * scale);
     }
     
-    //[self async_lock];
     if (pen_down)
     {
         std::lock_guard<std::mutex> lock(task_mutex);
@@ -281,7 +275,6 @@ std::set<UITouch*> ignored_touch;
     {
         UITouch *touch = valid_touches[0];
         CGPoint touchLocation = [touch locationInView:self.view];
-        //auto p = glm::vec2(touchLocation.x * scale, touchLocation.y * scale);
         float force = touch.type == UITouchType::UITouchTypeStylus ? touch.force : 1.0f;
         if (t_count == 2)
         {
@@ -297,7 +290,6 @@ std::set<UITouch*> ignored_touch;
             });
         }
     }
-    //[self async_unlock];
     t_pos = {tl0.x * scale, tl0.y * scale};
 }
 -(void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
@@ -315,12 +307,6 @@ std::set<UITouch*> ignored_touch;
     kEventSource source = touch.type == UITouchType::UITouchTypeStylus ? kEventSource::Stylus : kEventSource::Touch;
     pen_down = false;
 
-//    [self async_lock];
-//    if (t_count == 2)
-//        App::I.gesture_end();
-//    else
-//        App::I.mouse_up(0, touchLocation.x * scale, touchLocation.y * scale, source);
-//    [self async_unlock];
     std::lock_guard<std::mutex> lock(task_mutex);
     tasklist.emplace_back([tc=t_count, touchLocation, scale, source] {
         if (tc == 2)
@@ -418,11 +404,6 @@ std::set<UITouch*> ignored_touch;
 
 #pragma mark - GLKView and GLKViewController delegate methods
 
-- (void)update
-{
-    
-}
-
 - (void)glkView:(GLKView *)view drawInRect:(CGRect)rect
 {
     static auto time = std::chrono::steady_clock::now();