diff --git a/assets/model/monitor_graphics.fbx b/assets/model/monitor_graphics.fbx
deleted file mode 100644
index 922e836..0000000
--- a/assets/model/monitor_graphics.fbx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:6ace8732e2bc0c4bea4f0586f181b528128dcec35ced129ebade356b0203ef86
-size 42268
diff --git a/assets/model/pump_switch_1.fbx b/assets/model/pump_switch_1.fbx
deleted file mode 100644
index 7dc1142..0000000
--- a/assets/model/pump_switch_1.fbx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:51fdc2455d2ef9ae46f6ac45ae32bd68d024a6250aa3895b5800f8afaef87bad
-size 31724
diff --git a/assets/model/pump_switch_2.fbx b/assets/model/pump_switch_2.fbx
deleted file mode 100644
index 4068732..0000000
--- a/assets/model/pump_switch_2.fbx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:4f91df7bc962adc9fe7aff4cde58b4610ee0be9ada26e1e24cae12e842fd64e2
-size 31724
diff --git a/assets/model/pump_switch_3.fbx b/assets/model/pump_switch_3.fbx
deleted file mode 100644
index 9220cd7..0000000
--- a/assets/model/pump_switch_3.fbx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:c5103e5d3c2d48fe8f21c51d92ec7f1daf38529dd38e103d59a6bbc88abceecc
-size 31724
diff --git a/assets/model/reactor_core_interface_cell.scad b/assets/model/reactor_core_interface_cell.scad
deleted file mode 100644
index 317d259..0000000
--- a/assets/model/reactor_core_interface_cell.scad
+++ /dev/null
@@ -1,3 +0,0 @@
-
-linear_extrude(0.0001)
-square([1, 1], center = true);
diff --git a/assets/model/reactor_core_interface_circle.scad b/assets/model/reactor_core_interface_circle.scad
deleted file mode 100644
index 4bdc405..0000000
--- a/assets/model/reactor_core_interface_circle.scad
+++ /dev/null
@@ -1,10 +0,0 @@
-
-$fn = 256;
-
-linear_extrude(0.0001)
-translate([0.5, 0.5])
-difference()
-{
-    circle(d = 0.81);
-    circle(d = 0.8);
-}
diff --git a/assets/model/resistor_bank_switch.fbx b/assets/model/resistor_bank_switch.fbx
deleted file mode 100644
index 4b8dda1..0000000
--- a/assets/model/resistor_bank_switch.fbx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:43649e014384d821d81dfd6df6fa903c6b1345b3da76f4ffc325d60fa049e646
-size 31724
diff --git a/assets/model/synchroscope_dial.fbx b/assets/model/synchroscope_dial.fbx
deleted file mode 100644
index 0d263b2..0000000
--- a/assets/model/synchroscope_dial.fbx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:032a5c320e87afe6bc994b74dadc9dc2bbb27040f58ffe8c3b9bf190d54b9874
-size 31500
diff --git a/assets/model/turbine_breaker_switch.fbx b/assets/model/turbine_breaker_switch.fbx
deleted file mode 100644
index 0f6a765..0000000
--- a/assets/model/turbine_breaker_switch.fbx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:5d7bc022f495d34009a78d9c5e4e932c31d7570d352eb5e57efc9bc705dcd9b8
-size 31740
diff --git a/assets/model/turbine_valve_bypass_switch.fbx b/assets/model/turbine_valve_bypass_switch.fbx
deleted file mode 100644
index 78828c7..0000000
--- a/assets/model/turbine_valve_bypass_switch.fbx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:ce3c7ad6594ed7a902276fb6fea0820d6ce1a4394db5d5c6aca5b3ac31a2e7f1
-size 26220
diff --git a/assets/model/turbine_valve_inlet_switch.fbx b/assets/model/turbine_valve_inlet_switch.fbx
deleted file mode 100644
index c8df4b2..0000000
--- a/assets/model/turbine_valve_inlet_switch.fbx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:1234cbecb0a231a4205b6f8fcc2d8ba1b6efe6d40cb279446e81751dfe941158
-size 3027260
diff --git a/assets/scene.bin b/assets/scene.bin
deleted file mode 100644
index 637316e..0000000
--- a/assets/scene.bin
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:37c206c103088402c4074a25888f7b61f4890a3614b4bcabcb3ff8793f8c7448
-size 3318000
diff --git a/assets/scene.fbx b/assets/scene.fbx
deleted file mode 100644
index c5bc137..0000000
--- a/assets/scene.fbx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d03ebaa76e68a97f909cab312abbc9c22897d77f80eee6542172d53afde6c70f
-size 3025052
diff --git a/assets/shader/light.fsh b/assets/shader/light.fsh
new file mode 100644
index 0000000..7d36ad3
--- /dev/null
+++ b/assets/shader/light.fsh
@@ -0,0 +1,13 @@
+
+#version 460 core
+
+in vec4 frag_pos;
+out vec4 frag_colour;
+
+void main()
+{
+	float distance = length(frag_pos);
+	frag_colour = vec4(vec3(distance / 50.0f), 1);
+	gl_FragDepth = distance / 50.0f;
+}
+
diff --git a/assets/shader/light.gsh b/assets/shader/light.gsh
new file mode 100644
index 0000000..6c57360
--- /dev/null
+++ b/assets/shader/light.gsh
@@ -0,0 +1,28 @@
+
+#version 460 core
+
+layout (triangles) in;
+layout (triangle_strip, max_vertices=18) out;
+
+uniform mat4 shadow_mats[6];
+
+out vec4 frag_pos;
+
+void main()
+{
+	for(int i = 0; i < 6; i++)
+	{
+		gl_Layer = i;
+
+		for(int j = 0; j < 3; j++)
+		{
+			frag_pos = gl_in[j].gl_Position;
+			gl_Position = shadow_mats[i] * frag_pos;
+
+			EmitVertex();
+		}
+
+		EndPrimitive();
+	}
+}
+
diff --git a/assets/shader/light.vsh b/assets/shader/light.vsh
new file mode 100644
index 0000000..991ba7f
--- /dev/null
+++ b/assets/shader/light.vsh
@@ -0,0 +1,13 @@
+
+#version 460 core
+
+layout (location = 2) in vec4 aPos;
+
+uniform mat4 model;
+uniform mat4 camera;
+
+void main()
+{
+	gl_Position = camera * model * aPos;
+}
+
diff --git a/assets/test.bin b/assets/test.bin
deleted file mode 100644
index a5181ed..0000000
--- a/assets/test.bin
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:e357caf37d9510a004b35c2bc9e73eb92a5f16e65a1a6a7f7969add40c3ba6f6
-size 25320
diff --git a/assets/test.fbx b/assets/test.fbx
deleted file mode 100644
index b74dc41..0000000
--- a/assets/test.fbx
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:0c222b009a0f14c0d8c1bfea3a449c45f34b758aee73282baf149e05c9dfd0ff
-size 31500
diff --git a/assets/test.glb b/assets/test.glb
deleted file mode 100644
index 9a42769..0000000
--- a/assets/test.glb
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:f83c9f4a59566dcb497c60c7470a92979eb610d09171f8f4471d5b284230d19c
-size 29164
diff --git a/assets/test.gltf b/assets/test.gltf
deleted file mode 100644
index 09cb0bd..0000000
--- a/assets/test.gltf
+++ /dev/null
@@ -1,382 +0,0 @@
-{
-	"asset":{
-		"generator":"Khronos glTF Blender I/O v4.0.44",
-		"version":"2.0"
-	},
-	"scene":0,
-	"scenes":[
-		{
-			"extras":{
-				"SimpleBake_Props":{},
-				"bake_to_vertex_color_props":{}
-			},
-			"name":"Scene",
-			"nodes":[
-				0,
-				1,
-				2,
-				3
-			]
-		}
-	],
-	"nodes":[
-		{
-			"mesh":0,
-			"name":"Cylinder",
-			"translation":[
-				0,
-				0,
-				0.5
-			]
-		},
-		{
-			"mesh":1,
-			"name":"Cylinder.001",
-			"translation":[
-				1,
-				0,
-				0.5
-			]
-		},
-		{
-			"mesh":2,
-			"name":"Cylinder.002",
-			"translation":[
-				3,
-				0,
-				0.5
-			]
-		},
-		{
-			"mesh":3,
-			"name":"Cylinder.003",
-			"translation":[
-				2,
-				0,
-				0.5
-			]
-		}
-	],
-	"materials":[
-		{
-			"doubleSided":true,
-			"name":"Material.006",
-			"pbrMetallicRoughness":{
-				"baseColorFactor":[
-					0.800000011920929,
-					0.800000011920929,
-					0.800000011920929,
-					1
-				],
-				"metallicFactor":0,
-				"roughnessFactor":0.75
-			}
-		},
-		{
-			"doubleSided":true,
-			"name":"Material.005",
-			"pbrMetallicRoughness":{
-				"baseColorFactor":[
-					0.800000011920929,
-					0.800000011920929,
-					0.800000011920929,
-					1
-				],
-				"metallicFactor":0,
-				"roughnessFactor":0.5
-			}
-		},
-		{
-			"doubleSided":true,
-			"name":"Material.003",
-			"pbrMetallicRoughness":{
-				"baseColorFactor":[
-					0.800000011920929,
-					0.800000011920929,
-					0.800000011920929,
-					1
-				],
-				"metallicFactor":0,
-				"roughnessFactor":0.125
-			}
-		},
-		{
-			"doubleSided":true,
-			"name":"Material.004",
-			"pbrMetallicRoughness":{
-				"baseColorFactor":[
-					0.800000011920929,
-					0.800000011920929,
-					0.800000011920929,
-					1
-				],
-				"metallicFactor":0,
-				"roughnessFactor":0.25
-			}
-		}
-	],
-	"meshes":[
-		{
-			"name":"Cylinder",
-			"primitives":[
-				{
-					"attributes":{
-						"POSITION":0,
-						"NORMAL":1,
-						"TEXCOORD_0":2
-					},
-					"indices":3,
-					"material":0
-				}
-			]
-		},
-		{
-			"name":"Cylinder.001",
-			"primitives":[
-				{
-					"attributes":{
-						"POSITION":4,
-						"NORMAL":5,
-						"TEXCOORD_0":6
-					},
-					"indices":3,
-					"material":1
-				}
-			]
-		},
-		{
-			"name":"Cylinder.002",
-			"primitives":[
-				{
-					"attributes":{
-						"POSITION":7,
-						"NORMAL":8,
-						"TEXCOORD_0":9
-					},
-					"indices":3,
-					"material":2
-				}
-			]
-		},
-		{
-			"name":"Cylinder.003",
-			"primitives":[
-				{
-					"attributes":{
-						"POSITION":10,
-						"NORMAL":11,
-						"TEXCOORD_0":12
-					},
-					"indices":3,
-					"material":3
-				}
-			]
-		}
-	],
-	"accessors":[
-		{
-			"bufferView":0,
-			"componentType":5126,
-			"count":192,
-			"max":[
-				0.20000000298023224,
-				0.20000000298023224,
-				0.5
-			],
-			"min":[
-				-0.20000000298023224,
-				-0.20000000298023224,
-				-0.5
-			],
-			"type":"VEC3"
-		},
-		{
-			"bufferView":1,
-			"componentType":5126,
-			"count":192,
-			"type":"VEC3"
-		},
-		{
-			"bufferView":2,
-			"componentType":5126,
-			"count":192,
-			"type":"VEC2"
-		},
-		{
-			"bufferView":3,
-			"componentType":5123,
-			"count":372,
-			"type":"SCALAR"
-		},
-		{
-			"bufferView":4,
-			"componentType":5126,
-			"count":192,
-			"max":[
-				0.20000000298023224,
-				0.20000000298023224,
-				0.5
-			],
-			"min":[
-				-0.20000000298023224,
-				-0.20000000298023224,
-				-0.5
-			],
-			"type":"VEC3"
-		},
-		{
-			"bufferView":5,
-			"componentType":5126,
-			"count":192,
-			"type":"VEC3"
-		},
-		{
-			"bufferView":6,
-			"componentType":5126,
-			"count":192,
-			"type":"VEC2"
-		},
-		{
-			"bufferView":7,
-			"componentType":5126,
-			"count":192,
-			"max":[
-				0.20000000298023224,
-				0.20000000298023224,
-				0.5
-			],
-			"min":[
-				-0.20000000298023224,
-				-0.20000000298023224,
-				-0.5
-			],
-			"type":"VEC3"
-		},
-		{
-			"bufferView":8,
-			"componentType":5126,
-			"count":192,
-			"type":"VEC3"
-		},
-		{
-			"bufferView":9,
-			"componentType":5126,
-			"count":192,
-			"type":"VEC2"
-		},
-		{
-			"bufferView":10,
-			"componentType":5126,
-			"count":192,
-			"max":[
-				0.20000000298023224,
-				0.20000000298023224,
-				0.5
-			],
-			"min":[
-				-0.20000000298023224,
-				-0.20000000298023224,
-				-0.5
-			],
-			"type":"VEC3"
-		},
-		{
-			"bufferView":11,
-			"componentType":5126,
-			"count":192,
-			"type":"VEC3"
-		},
-		{
-			"bufferView":12,
-			"componentType":5126,
-			"count":192,
-			"type":"VEC2"
-		}
-	],
-	"bufferViews":[
-		{
-			"buffer":0,
-			"byteLength":2304,
-			"byteOffset":0,
-			"target":34962
-		},
-		{
-			"buffer":0,
-			"byteLength":2304,
-			"byteOffset":2304,
-			"target":34962
-		},
-		{
-			"buffer":0,
-			"byteLength":1536,
-			"byteOffset":4608,
-			"target":34962
-		},
-		{
-			"buffer":0,
-			"byteLength":744,
-			"byteOffset":6144,
-			"target":34963
-		},
-		{
-			"buffer":0,
-			"byteLength":2304,
-			"byteOffset":6888,
-			"target":34962
-		},
-		{
-			"buffer":0,
-			"byteLength":2304,
-			"byteOffset":9192,
-			"target":34962
-		},
-		{
-			"buffer":0,
-			"byteLength":1536,
-			"byteOffset":11496,
-			"target":34962
-		},
-		{
-			"buffer":0,
-			"byteLength":2304,
-			"byteOffset":13032,
-			"target":34962
-		},
-		{
-			"buffer":0,
-			"byteLength":2304,
-			"byteOffset":15336,
-			"target":34962
-		},
-		{
-			"buffer":0,
-			"byteLength":1536,
-			"byteOffset":17640,
-			"target":34962
-		},
-		{
-			"buffer":0,
-			"byteLength":2304,
-			"byteOffset":19176,
-			"target":34962
-		},
-		{
-			"buffer":0,
-			"byteLength":2304,
-			"byteOffset":21480,
-			"target":34962
-		},
-		{
-			"buffer":0,
-			"byteLength":1536,
-			"byteOffset":23784,
-			"target":34962
-		}
-	],
-	"buffers":[
-		{
-			"byteLength":25320,
-			"uri":"test.bin"
-		}
-	]
-}
diff --git a/src/graphics/shader.cpp b/src/graphics/shader.cpp
index d98c282..5612fe1 100644
--- a/src/graphics/shader.cpp
+++ b/src/graphics/shader.cpp
@@ -13,6 +13,7 @@ using namespace Sim::Graphics;
 
 Shader Shader::MAIN;
 Shader Shader::BLUR;
+Shader Shader::LIGHT;
 
 static int load_shader(const char* src, int type)
 {
@@ -39,6 +40,12 @@ static std::string read_shader(const char* path)
 	return ss.str();
 }
 
+static std::string read_shader(const char* base, const char* file)
+{
+	std::string path = std::string(base) + "/" + std::string(file);
+	return read_shader(path.c_str());
+}
+
 Shader::Shader()
 {
 
@@ -60,18 +67,29 @@ Shader::~Shader()
 
 void Shader::load(const char* path, const char* file_vsh, const char* file_fsh)
 {
-	std::string path_vsh = std::string(path) + "/" + std::string(file_vsh);
-	std::string path_fsh = std::string(path) + "/" + std::string(file_fsh);
-	std::string shader_vsh = read_shader(path_vsh.c_str());
-	std::string shader_fsh = read_shader(path_fsh.c_str());
+	load(path, file_vsh, nullptr, file_fsh);
+}
+
+void Shader::load(const char* path, const char* file_vsh, const char* file_gsh, const char* file_fsh)
+{
+	std::string shader_vsh = file_vsh ? read_shader(path, file_vsh) : "";
+	std::string shader_gsh = file_gsh ? read_shader(path, file_gsh) : "";
+	std::string shader_fsh = file_fsh ? read_shader(path, file_fsh) : "";
 
 	int success;
-	int vsh_id = load_shader(shader_vsh.c_str(), GL_VERTEX_SHADER);
-	int fsh_id = load_shader(shader_fsh.c_str(), GL_FRAGMENT_SHADER);
+	int vsh_id = file_vsh ? load_shader(shader_vsh.c_str(), GL_VERTEX_SHADER) : 0;
+	int gsh_id = file_gsh ? load_shader(shader_gsh.c_str(), GL_GEOMETRY_SHADER) : 0;
+	int fsh_id = file_fsh ? load_shader(shader_fsh.c_str(), GL_FRAGMENT_SHADER) : 0;
+	
 	prog_id = glCreateProgram();
 
-	glAttachShader(prog_id, vsh_id);
-	glAttachShader(prog_id, fsh_id);
+	if(file_vsh)
+		glAttachShader(prog_id, vsh_id);
+	if(file_gsh)
+		glAttachShader(prog_id, gsh_id);
+	if(file_fsh)
+		glAttachShader(prog_id, fsh_id);
+
 	glLinkProgram(prog_id);
 	glGetProgramiv(prog_id, GL_LINK_STATUS, &success);
 
@@ -85,8 +103,13 @@ void Shader::load(const char* path, const char* file_vsh, const char* file_fsh)
 	}
 
 	glUseProgram(prog_id);
-	glDeleteShader(vsh_id);
-	glDeleteShader(fsh_id);
+
+	if(file_vsh)
+		glDeleteShader(vsh_id);
+	if(file_gsh)
+		glDeleteShader(gsh_id);
+	if(file_fsh)
+		glDeleteShader(fsh_id);
 }
 
 void Shader::use()
diff --git a/src/graphics/shader.hpp b/src/graphics/shader.hpp
index af12c7e..ef53da4 100644
--- a/src/graphics/shader.hpp
+++ b/src/graphics/shader.hpp
@@ -16,12 +16,14 @@ public:
 	
 	static Shader MAIN;
 	static Shader BLUR;
+	static Shader LIGHT;
 
 	Shader();
 	Shader(const Shader& o) = delete;
 	Shader(Shader&& o);
 	~Shader();
 
+	void load(const char* path, const char* file_vsh, const char* file_gsh, const char* file_fsh);
 	void load(const char* path, const char* file_vsh, const char* file_fsh);
 	void use();
 
diff --git a/src/graphics/window.cpp b/src/graphics/window.cpp
index b6b5912..8bb27b2 100644
--- a/src/graphics/window.cpp
+++ b/src/graphics/window.cpp
@@ -119,6 +119,7 @@ void Window::create()
 	Font::init();
 	UI::init();
 
+	Shader::LIGHT.load("../assets/shader", "light.vsh", "light.gsh", "light.fsh");
 	Shader::MAIN.load("../assets/shader", "main.vsh", "main.fsh");
 	glBindFramebuffer(GL_FRAMEBUFFER, 0);
 
@@ -255,7 +256,7 @@ void Window::render()
 	projection_matrix = mat_projection;
 
 	glClearColor(0, 0, 0, 1.0f);
-	glClear(GL_DEPTH_BUFFER_BIT);
+	glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
 	glFrontFace(GL_CW);
 	
 	render_scene();