diff --git a/src/example_client.rs b/src/example_client.rs
index 3ad70d6..37ae2ab 100644
--- a/src/example_client.rs
+++ b/src/example_client.rs
@@ -6,14 +6,9 @@ use crate::gaia::consts;
 use crate::gaia::engine::Engine;
 use crate::gaia::light::*;
 use crate::gaia::sky::Sky;
-use crate::gaia::*;
 use cgmath::prelude::*;
-use cgmath::{perspective, vec3, Deg, Matrix4, Point3, Vector3};
-#[cfg(feature = "glfw_obsolete")]
-use glfw;
-use glutin::event::{ElementState, Event, KeyboardInput, VirtualKeyCode, WindowEvent};
-#[cfg(feature = "glfw_obsolete")]
-use imgui_glfw_rs::glfw;
+use cgmath::{perspective, vec3, Deg, Matrix4, Point3};
+use glutin::event::{ElementState, VirtualKeyCode};
 
 pub struct ExampleClient {
     models: Vec<ModelComponent>,
@@ -152,7 +147,6 @@ impl Client for ExampleClient {
     }
     fn update(&mut self, _engine: &Engine, delta: f32) {
         self.delta = delta;
-        println!("{}", delta);
     }
 
     #[cfg(feature = "imgui_inspect")]
diff --git a/src/gaia/client.rs b/src/gaia/client.rs
index f0aaf18..fe0bfd2 100644
--- a/src/gaia/client.rs
+++ b/src/gaia/client.rs
@@ -8,7 +8,6 @@ pub trait Client {
     fn on_keyboard(&mut self, code: &VirtualKeyCode, state: &ElementState);
     fn on_mouse_scroll(&mut self, yoffset: f32);
     fn on_mouse_move(&mut self, x: f32, y: f32);
-    // fn draw<T>(&mut self, engine: &mut Engine<T>) where T: Client;
     unsafe fn draw(&mut self);
     #[cfg(feature = "imgui_inspect")]
     fn debug_draw(&mut self, ui: &imgui::Ui);
diff --git a/src/gaia/engine.rs b/src/gaia/engine.rs
index 573b22f..95a9ce6 100644
--- a/src/gaia/engine.rs
+++ b/src/gaia/engine.rs
@@ -187,7 +187,6 @@ impl Engine {
         let mut screensize = self.size;
 
         event_loop.run(move |event, _, control_flow| {
-            use glutin::event::{Event, WindowEvent};
             use glutin::event_loop::ControlFlow;
             *control_flow = ControlFlow::Poll;
             platform.handle_event(imgui.io_mut(), &gl_window.window(), &event);
@@ -207,6 +206,13 @@ impl Engine {
                 }
                 Event::LoopDestroyed => return,
                 Event::WindowEvent { event, .. } => match event {
+                    WindowEvent::MouseWheel { delta, .. } => {
+                        use glutin::event::MouseScrollDelta;
+                        match delta {
+                            MouseScrollDelta::LineDelta(x, y) => client.on_mouse_scroll(y),
+                            MouseScrollDelta::PixelDelta(pos) => client.on_mouse_scroll(pos.y as f32),
+                        }
+                    }
                     WindowEvent::CursorMoved { position, .. } => {
                         let xpos = position.x as f32;
                         let ypos = position.y as f32;