diff --git a/Cargo.lock b/Cargo.lock
index d4e268f..411d338 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -531,6 +531,12 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
 
+[[package]]
+name = "fs_extra"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2022715d62ab30faffd124d40b76f4134a550a87792276512b18d63272333394"
+
 [[package]]
 name = "futures-core"
 version = "0.3.24"
@@ -575,6 +581,12 @@ dependencies = [
  "weezl",
 ]
 
+[[package]]
+name = "glob"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+
 [[package]]
 name = "glow"
 version = "0.11.2"
@@ -1286,9 +1298,12 @@ dependencies = [
  "bytemuck",
  "cgmath",
  "env_logger",
+ "fs_extra",
+ "glob",
  "image",
  "log",
  "pollster",
+ "tobj",
  "wgpu",
  "winit",
 ]
@@ -1442,6 +1457,15 @@ dependencies = [
  "weezl",
 ]
 
+[[package]]
+name = "tobj"
+version = "3.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "deacee3abcc4fd8ff3f0f7c08d4583ab51753ed1d5a3acacd6d5773f640c27d6"
+dependencies = [
+ "ahash",
+]
+
 [[package]]
 name = "toml"
 version = "0.5.9"
diff --git a/Cargo.toml b/Cargo.toml
index 146d92c..ebf9dd4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,3 +15,9 @@ bytemuck = { version = "1.4", features = [ "derive" ] }
 image = { version = "0.24", features = [ "png" ] }
 anyhow = "1.0"
 cgmath = "0.18"
+tobj = { version = "3.2.1", features = [ "async", ] }
+
+[build-dependencies]
+anyhow = "1.0"
+fs_extra = "1.2"
+glob = "0.3"
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..bdcbbaa
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,17 @@
+use anyhow::*;
+use fs_extra::copy_items;
+use fs_extra::dir::CopyOptions;
+use std::env;
+
+fn main() -> Result<()> {
+    println!("cargo:rerun-if-changed=res/*");
+
+    let out_dir = env::var("OUT_DIR")?;
+    let mut copy_options = CopyOptions::new();
+    copy_options.overwrite = true;
+    let mut paths_to_copy = Vec::new();
+    paths_to_copy.push("res/");
+    copy_items(&paths_to_copy, out_dir, &copy_options)?;
+
+    Ok(())
+}
diff --git a/res/cube-diffuse.jpg b/res/cube-diffuse.jpg
new file mode 100644
index 0000000..c89b31d
Binary files /dev/null and b/res/cube-diffuse.jpg differ
diff --git a/res/cube-normal.png b/res/cube-normal.png
new file mode 100644
index 0000000..5bbac0a
Binary files /dev/null and b/res/cube-normal.png differ
diff --git a/res/cube.mtl b/res/cube.mtl
new file mode 100644
index 0000000..6be388c
--- /dev/null
+++ b/res/cube.mtl
@@ -0,0 +1,14 @@
+# Blender MTL File: 'cube.blend'
+# Material Count: 1
+
+newmtl Material.001
+Ns 323.999994
+Ka 1.000000 1.000000 1.000000
+Kd 0.800000 0.800000 0.800000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
+map_Bump cube-normal.png
+map_Kd cube-diffuse.jpg
diff --git a/res/cube.obj b/res/cube.obj
new file mode 100644
index 0000000..e6aecc8
--- /dev/null
+++ b/res/cube.obj
@@ -0,0 +1,933 @@
+# Blender v2.82 (sub 7) OBJ File: 'cube.blend'
+# www.blender.org
+mtllib cube.mtl
+o Cube_Finished_Cube.001
+v 0.900000 0.900000 -1.000000
+v 0.900000 1.000000 -0.900000
+v 1.000000 0.900000 -0.900000
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+f 195/239/195 196/238/194 199/244/200 198/245/201
+f 196/238/194 197/241/197 200/246/202 199/244/200
+f 197/241/197 207/243/199 208/247/203 200/246/202
+f 191/12/12 201/248/204 204/249/205 203/250/206
+f 201/248/204 202/251/207 205/252/208 204/249/205
+f 202/251/207 214/253/209 215/254/210 205/252/208
+f 203/250/206 204/249/205 207/255/199 206/256/198
+f 204/249/205 205/252/208 208/257/203 207/255/199
+f 205/252/208 215/254/210 216/258/211 208/257/203
+f 192/5/5 209/259/212 212/260/213 211/261/214
+f 209/259/212 210/262/215 213/263/216 212/260/213
+f 210/262/215 198/264/201 199/265/200 213/263/216
+f 211/261/214 212/260/213 215/266/210 214/267/209
+f 212/260/213 213/263/216 216/268/211 215/266/210
+f 213/263/216 199/265/200 200/269/202 216/268/211
+f 200/246/202 208/247/203 216/270/211
+f 138/1/1 190/4/4 195/239/195 155/190/164
+f 155/190/164 195/239/195 198/245/201 156/193/167
+f 156/193/167 198/245/201 210/271/215 144/195/152
+f 144/178/152 210/262/215 209/259/212 141/172/146
+f 141/172/146 209/259/212 192/5/5 136/8/8
+f 28/2/2 138/1/1 157/192/166 31/50/46
+f 31/50/46 157/192/166 160/198/161 32/53/49
+f 32/53/49 160/198/161 148/272/159 44/55/51
+f 44/70/51 148/185/159 147/182/156 41/64/60
+f 41/64/60 147/182/156 137/181/155 29/61/57
+f 3/18/18 30/17/17 49/75/68 20/44/41
+f 20/44/41 49/75/68 52/67/63 21/47/44
+f 21/47/44 52/67/63 40/65/61 9/30/30
+f 9/30/30 40/65/61 39/62/58 6/24/24
+f 6/24/24 39/62/58 29/61/57 1/21/21
+f 191/12/12 164/11/11 176/216/182 201/248/204
+f 201/248/204 176/216/182 179/222/174 202/251/207
+f 202/251/207 179/222/174 167/273/172 214/253/209
+f 214/267/209 167/206/172 166/203/169 211/261/214
+f 211/261/214 166/203/169 163/6/6 192/5/5
+f 57/10/10 83/9/9 95/121/108 74/98/90
+f 74/98/90 95/121/108 98/113/100 75/101/93
+f 75/101/93 98/113/100 86/111/98 63/87/79
+f 63/87/79 86/111/98 85/108/95 60/81/73
+f 60/81/73 85/108/95 82/20/20 55/19/19
+f 109/137/119 137/181/155 149/184/158 112/138/120
+f 112/138/120 149/184/158 152/175/149 113/141/123
+f 113/141/123 152/175/149 140/173/147 125/143/125
+f 125/143/125 140/173/147 139/170/144 122/151/133
+f 122/151/133 139/170/144 136/8/8 110/7/7
+f 56/16/16 165/15/15 184/227/190 66/90/82
+f 66/90/82 184/227/190 187/233/185 67/93/85
+f 67/93/85 187/233/185 175/274/183 79/95/87
+f 79/104/87 175/217/183 174/214/180 76/100/92
+f 76/100/92 174/214/180 164/11/11 57/10/10
+f 2/13/13 56/16/16 68/92/84 12/33/33
+f 12/33/33 68/92/84 71/84/76 13/36/36
+f 13/36/36 71/84/76 59/82/74 25/38/38
+f 25/38/38 59/82/74 58/79/71 22/46/43
+f 22/46/43 58/79/71 55/19/19 3/18/18
+f 190/4/4 84/3/3 103/129/116 193/237/193
+f 193/237/193 103/129/116 106/133/111 194/240/196
+f 194/240/196 106/133/111 94/275/109 206/242/198
+f 206/256/198 94/122/109 93/119/106 203/250/206
+f 203/250/206 93/119/106 83/9/9 191/12/12
+f 165/15/15 111/14/14 130/159/141 182/225/188
+f 182/225/188 130/159/141 133/165/136 183/228/191
+f 183/228/191 133/165/136 121/276/134 171/230/177
+f 171/211/177 121/152/134 120/149/131 168/205/171
+f 168/205/171 120/149/131 110/7/7 163/6/6
+f 111/14/14 2/13/13 14/35/35 128/157/139
+f 128/157/139 14/35/35 17/41/27 129/160/142
+f 129/160/142 17/41/27 5/277/25 117/162/128
+f 117/146/128 5/25/25 4/22/22 114/140/122
+f 114/140/122 4/22/22 1/21/21 109/137/119
+f 84/3/3 28/2/2 33/52/48 101/127/114
+f 101/127/114 33/52/48 36/58/54 102/130/117
+f 102/130/117 36/58/54 48/76/69 90/116/103
+f 90/116/103 48/76/69 47/73/66 87/110/97
+f 87/110/97 47/73/66 30/17/17 82/20/20
+f 137/181/155 109/137/119 1/21/21 29/61/57
diff --git a/assets/test.png b/res/test.png
similarity index 100%
rename from assets/test.png
rename to res/test.png
diff --git a/src/core/mod.rs b/src/core/mod.rs
index c2b1e43..0c51314 100644
--- a/src/core/mod.rs
+++ b/src/core/mod.rs
@@ -1,6 +1,7 @@
 pub mod camera;
 pub mod instance;
+pub mod model;
+pub mod resources;
 pub mod state;
 pub mod texture;
 pub mod updater;
-pub mod vertex;
diff --git a/src/core/model.rs b/src/core/model.rs
new file mode 100644
index 0000000..7404c32
--- /dev/null
+++ b/src/core/model.rs
@@ -0,0 +1,128 @@
+use std::ops::Range;
+
+use crate::core::texture::Texture;
+
+pub struct Material {
+    pub name: String,
+    pub diffuse_texture: Texture,
+    pub bind_group: wgpu::BindGroup,
+}
+
+pub struct Mesh {
+    pub name: String,
+    pub vertex_buffer: wgpu::Buffer,
+    pub index_buffer: wgpu::Buffer,
+    pub num_elements: u32,
+    pub material: usize,
+}
+
+pub struct Model {
+    pub meshes: Vec<Mesh>,
+    pub materials: Vec<Material>,
+}
+
+pub trait Vertex {
+    fn desc<'a>() -> wgpu::VertexBufferLayout<'a>;
+}
+
+#[repr(C)]
+#[derive(Copy, Clone, Debug, bytemuck::Pod, bytemuck::Zeroable)]
+pub struct ModelVertex {
+    pub position: [f32; 3],
+    pub tex_coords: [f32; 2],
+    pub normal: [f32; 3],
+}
+
+impl Vertex for ModelVertex {
+    fn desc<'a>() -> wgpu::VertexBufferLayout<'a> {
+        use std::mem;
+        wgpu::VertexBufferLayout {
+            array_stride: mem::size_of::<ModelVertex>() as wgpu::BufferAddress,
+            step_mode: wgpu::VertexStepMode::Vertex,
+            attributes: &[
+                wgpu::VertexAttribute {
+                    offset: 0,
+                    shader_location: 0,
+                    format: wgpu::VertexFormat::Float32x3,
+                },
+                wgpu::VertexAttribute {
+                    offset: mem::size_of::<[f32; 3]>() as wgpu::BufferAddress,
+                    shader_location: 1,
+                    format: wgpu::VertexFormat::Float32x2,
+                },
+                wgpu::VertexAttribute {
+                    offset: mem::size_of::<[f32; 5]>() as wgpu::BufferAddress,
+                    shader_location: 2,
+                    format: wgpu::VertexFormat::Float32x3,
+                },
+            ],
+        }
+    }
+}
+
+pub trait DrawModel<'a> {
+    fn draw_mesh(
+        &mut self,
+        mesh: &'a Mesh,
+        material: &'a Material,
+        camera_bind_group: &'a wgpu::BindGroup,
+    );
+    fn draw_mesh_instanced(
+        &mut self,
+        mesh: &'a Mesh,
+        material: &'a Material,
+        instances: Range<u32>,
+        camera_bind_group: &'a wgpu::BindGroup,
+    );
+    fn draw_model(&mut self, model: &'a Model, camera_bind_group: &'a wgpu::BindGroup);
+    fn draw_model_instanced(
+        &mut self,
+        model: &'a Model,
+        instances: Range<u32>,
+        camera_bind_group: &'a wgpu::BindGroup,
+    );
+}
+
+impl<'a, 'b> DrawModel<'b> for wgpu::RenderPass<'a>
+where
+    'b: 'a,
+{
+    fn draw_mesh(
+        &mut self,
+        mesh: &'b Mesh,
+        material: &'b Material,
+        camera_bind_group: &'b wgpu::BindGroup,
+    ) {
+        self.draw_mesh_instanced(mesh, material, 0..1, camera_bind_group);
+    }
+
+    fn draw_mesh_instanced(
+        &mut self,
+        mesh: &'b Mesh,
+        material: &'b Material,
+        instances: Range<u32>,
+        camera_bind_group: &'b wgpu::BindGroup,
+    ) {
+        self.set_vertex_buffer(0, mesh.vertex_buffer.slice(..));
+        self.set_index_buffer(mesh.index_buffer.slice(..), wgpu::IndexFormat::Uint32);
+        self.set_bind_group(0, &material.bind_group, &[]);
+        self.set_bind_group(1, camera_bind_group, &[]);
+        self.draw_indexed(0..mesh.num_elements, 0, instances);
+    }
+
+    fn draw_model(&mut self, model: &'b Model, camera_bind_group: &'b wgpu::BindGroup) {
+        self.draw_model_instanced(model, 0..1, camera_bind_group);
+    }
+
+    fn draw_model_instanced(
+        &mut self,
+        model: &'b Model,
+        instances: Range<u32>,
+        camera_bind_group: &'b wgpu::BindGroup,
+    ) {
+        for mesh in &model.meshes {
+            let material = &model.materials[mesh.material];
+            self.draw_mesh_instanced(mesh, material, instances.clone(), camera_bind_group);
+        }
+    }
+}
diff --git a/src/core/resources.rs b/src/core/resources.rs
new file mode 100644
index 0000000..0c9dcfd
--- /dev/null
+++ b/src/core/resources.rs
@@ -0,0 +1,124 @@
+use std::io::{BufReader, Cursor};
+use wgpu::util::DeviceExt;
+
+use crate::core::model::{Material, Mesh, Model, ModelVertex};
+use crate::core::texture::Texture;
+
+pub async fn load_string(file_name: &str) -> anyhow::Result<String> {
+    let path = std::path::Path::new(env!("OUT_DIR"))
+        .join("res")
+        .join(file_name);
+    let txt = std::fs::read_to_string(path)?;
+
+    return Ok(txt);
+}
+
+pub async fn load_binary(file_name: &str) -> anyhow::Result<Vec<u8>> {
+    let path = std::path::Path::new(env!("OUT_DIR"))
+        .join("res")
+        .join(file_name);
+    let data = std::fs::read(path)?;
+
+    return Ok(data);
+}
+
+pub async fn load_texture(
+    file_name: &str,
+    device: &wgpu::Device,
+    queue: &wgpu::Queue,
+) -> anyhow::Result<Texture> {
+    let data = load_binary(file_name).await?;
+    Texture::from_bytes(device, queue, &data, file_name)
+}
+
+pub async fn load_model(
+    file_name: &str,
+    device: &wgpu::Device,
+    queue: &wgpu::Queue,
+    layout: &wgpu::BindGroupLayout,
+) -> anyhow::Result<Model> {
+    let obj_text = load_string(file_name).await?;
+    let obj_cursor = Cursor::new(obj_text);
+    let mut obj_reader = BufReader::new(obj_cursor);
+
+    let (models, obj_materials) = tobj::load_obj_buf_async(
+        &mut obj_reader,
+        &tobj::LoadOptions {
+            triangulate: true,
+            single_index: true,
+            ..Default::default()
+        },
+        |p| async move {
+            let mat_text = load_string(&p).await.unwrap();
+            tobj::load_mtl_buf(&mut BufReader::new(Cursor::new(mat_text)))
+        },
+    )
+    .await?;
+
+    let mut materials = Vec::new();
+    for m in obj_materials? {
+        let diffuse_texture = load_texture(&m.diffuse_texture, device, queue).await?;
+        let bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
+            layout,
+            entries: &[
+                wgpu::BindGroupEntry {
+                    binding: 0,
+                    resource: wgpu::BindingResource::TextureView(&diffuse_texture.view),
+                },
+                wgpu::BindGroupEntry {
+                    binding: 1,
+                    resource: wgpu::BindingResource::Sampler(&diffuse_texture.sampler),
+                },
+            ],
+            label: None,
+        });
+
+        materials.push(Material {
+            name: m.name,
+            diffuse_texture,
+            bind_group,
+        })
+    }
+
+    let meshes = models
+        .into_iter()
+        .map(|m| {
+            let vertices = (0..m.mesh.positions.len() / 3)
+                .map(|i| ModelVertex {
+                    position: [
+                        m.mesh.positions[i * 3],
+                        m.mesh.positions[i * 3 + 1],
+                        m.mesh.positions[i * 3 + 2],
+                    ],
+                    tex_coords: [m.mesh.texcoords[i * 2], m.mesh.texcoords[i * 2 + 1]],
+                    normal: [
+                        m.mesh.normals[i * 3],
+                        m.mesh.normals[i * 3 + 1],
+                        m.mesh.normals[i * 3 + 2],
+                    ],
+                })
+                .collect::<Vec<_>>();
+
+            let vertex_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
+                label: Some(&format!("{:?} Vertex Buffer", file_name)),
+                contents: bytemuck::cast_slice(&vertices),
+                usage: wgpu::BufferUsages::VERTEX,
+            });
+            let index_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
+                label: Some(&format!("{:?} Index Buffer", file_name)),
+                contents: bytemuck::cast_slice(&m.mesh.indices),
+                usage: wgpu::BufferUsages::INDEX,
+            });
+
+            Mesh {
+                name: file_name.to_string(),
+                vertex_buffer,
+                index_buffer,
+                num_elements: m.mesh.indices.len() as u32,
+                material: m.mesh.material_id.unwrap_or(0),
+            }
+        })
+        .collect::<Vec<_>>();
+
+    return Ok(Model { meshes, materials });
+}
diff --git a/src/core/state.rs b/src/core/state.rs
index b803435..e4ce7a8 100644
--- a/src/core/state.rs
+++ b/src/core/state.rs
@@ -6,39 +6,11 @@ use winit::{event::*, window::Window};
 
 use super::camera::{Camera, CameraController, CameraUniform};
 use super::instance::{Instance, InstanceRaw};
+use super::model::{DrawModel, Model, ModelVertex, Vertex};
+use super::resources;
 use super::texture::Texture;
-use super::vertex::Vertex;
 
-// test data
-const VERTICES: &[Vertex] = &[
-    Vertex {
-        position: [-0.0868241, 0.49240386, 0.0],
-        tex_coords: [0.4131759, 0.99240386],
-    }, // A
-    Vertex {
-        position: [-0.49513406, 0.06958647, 0.0],
-        tex_coords: [0.0048659444, 0.56958647],
-    }, // B
-    Vertex {
-        position: [-0.21918549, -0.44939706, 0.0],
-        tex_coords: [0.28081453, 0.05060294],
-    }, // C
-    Vertex {
-        position: [0.35966998, -0.3473291, 0.0],
-        tex_coords: [0.85967, 0.1526709],
-    }, // D
-    Vertex {
-        position: [0.44147372, 0.2347359, 0.0],
-        tex_coords: [0.9414737, 0.7347359],
-    }, // E
-];
-const INDICES: &[u16] = &[0, 1, 4, 1, 2, 4, 2, 3, 4];
 const NUM_INSTANCES_PER_ROW: u32 = 10;
-const INSTANCE_DISPLACEMENT: cgmath::Vector3<f32> = cgmath::Vector3::new(
-    NUM_INSTANCES_PER_ROW as f32 * 0.5,
-    0.0,
-    NUM_INSTANCES_PER_ROW as f32 * 0.5,
-);
 
 pub struct State {
     pub size: winit::dpi::PhysicalSize<u32>,
@@ -48,10 +20,6 @@ pub struct State {
     queue: wgpu::Queue,
     config: wgpu::SurfaceConfiguration,
     render_pipeline: wgpu::RenderPipeline,
-    vertex_buffer: wgpu::Buffer,
-    index_buffer: wgpu::Buffer,
-    num_indices: u32,
-    diffuse_bind_group: wgpu::BindGroup,
     camera: Camera,
     camera_uniform: CameraUniform,
     camera_buffer: wgpu::Buffer,
@@ -59,6 +27,8 @@ pub struct State {
     camera_controller: CameraController,
     instances: Vec<Instance>,
     instance_buffer: wgpu::Buffer,
+    depth_texture: Texture,
+    obj_model: Model,
 }
 
 impl State {
@@ -141,11 +111,7 @@ impl State {
 
         let camera_controller = CameraController::new(1.0, 2.0);
 
-        // Test image
         surface.configure(&device, &config);
-        let diffuse_bytes = include_bytes!("../../assets/test.png");
-        let diffuse_texture =
-            Texture::from_bytes(&device, &queue, diffuse_bytes, "../../assets/test.png").unwrap();
 
         let texture_bind_group_layout =
             device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
@@ -171,33 +137,22 @@ impl State {
                 ],
                 label: Some("texture_bind_group_layout"),
             });
-        let diffuse_bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
-            layout: &texture_bind_group_layout,
-            entries: &[
-                wgpu::BindGroupEntry {
-                    binding: 0,
-                    resource: wgpu::BindingResource::TextureView(&diffuse_texture.view),
-                },
-                wgpu::BindGroupEntry {
-                    binding: 1,
-                    resource: wgpu::BindingResource::Sampler(&diffuse_texture.sampler),
-                },
-            ],
-            label: Some("diffuse_bind_group"),
-        });
 
+        let obj_model =
+            resources::load_model("cube.obj", &device, &queue, &texture_bind_group_layout)
+                .await
+                .unwrap();
+
+        const SPACE_BETWEEN: f32 = 3.0;
         let instances = (0..NUM_INSTANCES_PER_ROW)
             .flat_map(|z| {
                 (0..NUM_INSTANCES_PER_ROW).map(move |x| {
-                    let position = cgmath::Vector3 {
-                        x: x as f32,
-                        y: 0.0,
-                        z: z as f32,
-                    } - INSTANCE_DISPLACEMENT;
+                    let x = SPACE_BETWEEN * (x as f32 - NUM_INSTANCES_PER_ROW as f32 / 2.0);
+                    let z = SPACE_BETWEEN * (z as f32 - NUM_INSTANCES_PER_ROW as f32 / 2.0);
+
+                    let position = cgmath::Vector3 { x, y: 0.0, z };
 
                     let rotation = if position.is_zero() {
-                        // this is needed so an object at (0, 0, 0) won't get scaled to zero
-                        // as Quaternions can effect scale if they're not created correctly
                         cgmath::Quaternion::from_axis_angle(
                             cgmath::Vector3::unit_z(),
                             cgmath::Deg(0.0),
@@ -210,6 +165,7 @@ impl State {
                 })
             })
             .collect::<Vec<_>>();
+
         let instance_data = instances.iter().map(Instance::to_raw).collect::<Vec<_>>();
         let instance_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
             label: Some("Instance Buffer"),
@@ -217,6 +173,8 @@ impl State {
             usage: wgpu::BufferUsages::VERTEX,
         });
 
+        let depth_texture = Texture::create_depth_texture(&device, &config, "depth_texture");
+
         // let shader = device.create_shader_module(wgpu::ShaderModuleDescriptor {
         //     label: Some("Shader"),
         //     source: wgpu::ShaderSource::Wgsl(include_str!("../shaders/test.wgsl").into()),
@@ -236,10 +194,9 @@ impl State {
             vertex: wgpu::VertexState {
                 module: &shader,
                 entry_point: "vs_main",
-                buffers: &[Vertex::desc(), InstanceRaw::desc()],
+                buffers: &[ModelVertex::desc(), InstanceRaw::desc()],
             },
             fragment: Some(wgpu::FragmentState {
-                // 3.
                 module: &shader,
                 entry_point: "fs_main",
                 targets: &[Some(wgpu::ColorTargetState {
@@ -260,7 +217,13 @@ impl State {
                 // Requires Features::CONSERVATIVE_RASTERIZATION
                 conservative: false,
             },
-            depth_stencil: None,
+            depth_stencil: Some(wgpu::DepthStencilState {
+                format: Texture::DEPTH_FORMAT,
+                depth_write_enabled: true,
+                depth_compare: wgpu::CompareFunction::Less,
+                stencil: wgpu::StencilState::default(),
+                bias: wgpu::DepthBiasState::default(),
+            }),
             multisample: wgpu::MultisampleState {
                 count: 1,
                 mask: !0,
@@ -269,19 +232,6 @@ impl State {
             multiview: None,
         });
 
-        let vertex_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
-            label: Some("Vertex Buffer"),
-            contents: bytemuck::cast_slice(VERTICES),
-            usage: wgpu::BufferUsages::VERTEX,
-        });
-
-        let index_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
-            label: Some("Index Buffer"),
-            contents: bytemuck::cast_slice(INDICES),
-            usage: wgpu::BufferUsages::INDEX,
-        });
-        let num_indices = INDICES.len() as u32;
-
         return Self {
             size,
             surface,
@@ -289,10 +239,6 @@ impl State {
             queue,
             config,
             render_pipeline,
-            vertex_buffer,
-            index_buffer,
-            num_indices,
-            diffuse_bind_group,
             camera,
             camera_uniform,
             camera_buffer,
@@ -300,6 +246,8 @@ impl State {
             camera_controller,
             instances,
             instance_buffer,
+            depth_texture,
+            obj_model,
         };
     }
 
@@ -312,6 +260,8 @@ impl State {
             self.camera
                 .projection
                 .resize(new_size.width, new_size.height);
+            self.depth_texture =
+                Texture::create_depth_texture(&self.device, &self.config, "depth_texture");
         }
     }
 
@@ -357,28 +307,34 @@ impl State {
                         resolve_target: None,
                         ops: wgpu::Operations {
                             load: wgpu::LoadOp::Clear(wgpu::Color {
-                                r: 0.1,
-                                g: 0.2,
-                                b: 0.3,
+                                r: 0.0,
+                                g: 0.5,
+                                b: 0.0,
                                 a: 1.0,
                             }),
                             store: true,
                         },
                     }),
                 ],
-                depth_stencil_attachment: None,
+                depth_stencil_attachment: Some(wgpu::RenderPassDepthStencilAttachment {
+                    view: &self.depth_texture.view,
+                    depth_ops: Some(wgpu::Operations {
+                        load: wgpu::LoadOp::Clear(1.0),
+                        store: true,
+                    }),
+                    stencil_ops: None,
+                }),
             });
 
             render_pass.set_pipeline(&self.render_pipeline);
 
-            render_pass.set_bind_group(0, &self.diffuse_bind_group, &[]);
-            render_pass.set_bind_group(1, &self.camera_bind_group, &[]);
-
-            render_pass.set_vertex_buffer(0, self.vertex_buffer.slice(..));
             render_pass.set_vertex_buffer(1, self.instance_buffer.slice(..));
-            render_pass.set_index_buffer(self.index_buffer.slice(..), wgpu::IndexFormat::Uint16);
 
-            render_pass.draw_indexed(0..self.num_indices, 0, 0..self.instances.len() as _);
+            render_pass.draw_model_instanced(
+                &self.obj_model,
+                0..self.instances.len() as u32,
+                &self.camera_bind_group,
+            );
         }
 
         // submit will accept anything that implements IntoIter
diff --git a/src/core/texture.rs b/src/core/texture.rs
index 6fa7832..67db090 100644
--- a/src/core/texture.rs
+++ b/src/core/texture.rs
@@ -8,6 +8,50 @@ pub struct Texture {
 }
 
 impl Texture {
+    pub const DEPTH_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Depth32Float;
+
+    pub fn create_depth_texture(
+        device: &wgpu::Device,
+        config: &wgpu::SurfaceConfiguration,
+        label: &str,
+    ) -> Self {
+        let size = wgpu::Extent3d {
+            width: config.width,
+            height: config.height,
+            depth_or_array_layers: 1,
+        };
+        let desc = wgpu::TextureDescriptor {
+            label: Some(label),
+            size,
+            mip_level_count: 1,
+            sample_count: 1,
+            dimension: wgpu::TextureDimension::D2,
+            format: Self::DEPTH_FORMAT,
+            usage: wgpu::TextureUsages::RENDER_ATTACHMENT | wgpu::TextureUsages::TEXTURE_BINDING,
+        };
+        let texture = device.create_texture(&desc);
+
+        let view = texture.create_view(&wgpu::TextureViewDescriptor::default());
+        let sampler = device.create_sampler(&wgpu::SamplerDescriptor {
+            address_mode_u: wgpu::AddressMode::ClampToEdge,
+            address_mode_v: wgpu::AddressMode::ClampToEdge,
+            address_mode_w: wgpu::AddressMode::ClampToEdge,
+            mag_filter: wgpu::FilterMode::Linear,
+            min_filter: wgpu::FilterMode::Linear,
+            mipmap_filter: wgpu::FilterMode::Nearest,
+            compare: Some(wgpu::CompareFunction::LessEqual),
+            lod_min_clamp: -100.0,
+            lod_max_clamp: 100.0,
+            ..Default::default()
+        });
+
+        Self {
+            texture,
+            view,
+            sampler,
+        }
+    }
+
     pub fn from_bytes(
         device: &wgpu::Device,
         queue: &wgpu::Queue,
diff --git a/src/core/vertex.rs b/src/core/vertex.rs
deleted file mode 100644
index 767f5d4..0000000
--- a/src/core/vertex.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-#[repr(C)]
-#[derive(Copy, Clone, Debug, bytemuck::Pod, bytemuck::Zeroable)]
-pub struct Vertex {
-    pub position: [f32; 3],
-    pub tex_coords: [f32; 2],
-}
-
-impl Vertex {
-    const ATTRIBS: [wgpu::VertexAttribute; 2] =
-        wgpu::vertex_attr_array![0 => Float32x3, 1 => Float32x2];
-
-    pub fn desc<'a>() -> wgpu::VertexBufferLayout<'a> {
-        return wgpu::VertexBufferLayout {
-            array_stride: std::mem::size_of::<Vertex>() as wgpu::BufferAddress,
-            step_mode: wgpu::VertexStepMode::Vertex,
-            attributes: &Self::ATTRIBS,
-        };
-    }
-}