diff --git a/assets/scene.blend b/assets/scene.blend
index e7c4615..b618e75 100644
--- a/assets/scene.blend
+++ b/assets/scene.blend
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b85c7237e37ff2b9ba6b0d3407f27989c1173b3e4c0eee5776fe52effd26ad69
-size 16317033
+oid sha256:a0cb597b1f61b1eb72ef1177aa55082c7ffa5bfaf8af87cbc6e1f04510e840e8
+size 16472105
diff --git a/assets/scene.glb b/assets/scene.glb
index e41dd76..a59a67a 100644
--- a/assets/scene.glb
+++ b/assets/scene.glb
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:588b2c0d24f195a86b22f5d45aec1008a8b8c35164797c4d74f1631de926d8d7
-size 1932828
+oid sha256:cc51cad04148d0f57916c3d7041776998fc93e50dca0ba4fc5fb47e6b4eadc46
+size 2044764
diff --git a/assets/shader/light.gsh b/assets/shader/light.gsh
index c234248..950f2c5 100644
--- a/assets/shader/light.gsh
+++ b/assets/shader/light.gsh
@@ -5,6 +5,7 @@ layout (triangles) in;
 layout (triangle_strip, max_vertices=18) out;
 
 uniform mat4 shadow_mats[6];
+uniform int light_pass;
 
 in flat int should_ignore[];
 out vec3 frag_pos;
@@ -13,9 +14,11 @@ void main()
 {
 	if(should_ignore[0] != 0) return;
 
+	int pass_offset = light_pass * 6;
+
 	for(int i = 0; i < 6; i++)
 	{
-		gl_Layer = i;
+		gl_Layer = i + pass_offset;
 
 		for(int j = 0; j < 3; j++)
 		{
diff --git a/assets/shader/light.vsh b/assets/shader/light.vsh
index a351367..e0eabc8 100644
--- a/assets/shader/light.vsh
+++ b/assets/shader/light.vsh
@@ -1,20 +1,22 @@
 
 #version 460 core
 
-layout (location = 2) in vec3 aPos;
-layout (location = 4) in vec4 aColour;
-layout (location = 5) in vec3 aMaterial;
-layout (location = 6) in float aTransformIndex;
+#define MAX_LIGHTS 6
+
+layout (location = 1) in vec3 aPos;
+layout (location = 2) in vec4 aColour;
+layout (location = 6) in int aTransformIndex;
 
 layout (binding = 3) readonly buffer TransformBuffer
 {
 	mat4 transforms[];
 };
 
-uniform mat4 camera;
-
 out flat int should_ignore;
 
+uniform vec3 light_pos;
+uniform int light_pass;
+
 mat4 load_model_mat(int index)
 {
 	return index < 0 ? mat4(1.f) : transforms[index];
@@ -23,10 +25,9 @@ mat4 load_model_mat(int index)
 void main()
 {
 	vec4 pos = vec4(aPos, 1.f);
-	mat4 model = load_model_mat(int(aTransformIndex));
-	mat4 mv = camera * model;
+	mat4 model = load_model_mat(aTransformIndex);
 
-	gl_Position = mv * pos;
-	should_ignore = int(aMaterial[2] > 0.f || aColour.a < 1.f);
+	gl_Position = model * pos - vec4(light_pos, 0.f);
+	should_ignore = int(aColour.a < 1.f);
 }
 
diff --git a/assets/shader/main.fsh b/assets/shader/main.fsh
index 086b51d..e693221 100644
--- a/assets/shader/main.fsh
+++ b/assets/shader/main.fsh
@@ -5,12 +5,11 @@
 const float PI = 3.141592f;
 
 in VS_OUT {
-	vec3 normal;
-	vec4 colour;
+	mat3 tbn;
 	vec3 pos;
 	vec2 tex_pos;
-	vec3 material;
-	float ambient;
+	flat vec4 colour;
+	flat vec3 material;
 } vin;
 
 struct Light
@@ -19,17 +18,14 @@ struct Light
 	vec4 colour;
 };
 
-layout(std140, binding = 1) readonly buffer LightBuffer
+layout(std140, binding = 2) readonly buffer LightBuffer
 {
 	Light lights[];
 };
 
-layout(std430, binding = 2) readonly buffer ShadowMapBuffer
-{
-	samplerCube shadow_maps[];
-};
+in flat sampler2D frag_tex_diffuse;
+in flat sampler2D frag_tex_normal;
 
-in flat sampler2D frag_tex;
 out vec4 frag_colour;
 
 uniform vec3 brightness;
@@ -38,6 +34,8 @@ uniform float far_plane;
 uniform bool shadows_enabled;
 uniform int lights_count;
 
+uniform samplerCubeArrayShadow shadow_maps;
+
 float Map(float v, float i_min, float i_max, float o_min, float o_max)
 {
 	return o_min + (o_max - o_min) * (v - i_min) / (i_max - i_min);
@@ -109,21 +107,22 @@ vec3 sRGB_To_LinRGB(vec3 c)
 
 void main()
 {
-	vec4 albedo = texture2D(frag_tex, vin.tex_pos);
+	vec4 albedo = texture2D(frag_tex_diffuse, vin.tex_pos);
 	if(albedo.a == 0.f) discard;
 
+	vec3 tangent = texture2D(frag_tex_normal, vin.tex_pos).rgb * 2.f - 1.f;
 	vec3 albedo_lin = sRGB_To_LinRGB(albedo.rgb) * vin.colour.rgb;
 	albedo *= vin.colour;
-	
+
 	float roughness = vin.material[0];
 	float metalness = vin.material[1];
 	float luminance = min(vin.material[2], 1.f);
 
-	vec3 N = normalize(vin.normal);
+	vec3 N = normalize(vin.tbn * tangent);
 	vec3 V = normalize(camera_pos - vin.pos.xyz);
 
 	vec3 F0 = mix(vec3(0.04f), albedo_lin, metalness);
-	vec3 ambient = vec3(vin.ambient) * albedo_lin * brightness;
+	vec3 ambient = vec3(Map(dot(N, vec3(0.f, 0.f, 1.f)), -1.f, 1.f, 0.2f, 0.25f)) * albedo_lin * brightness;
 	vec3 Lo = vec3(0.f);
 
 	for(int i = 0; i < lights_count; i++)
@@ -135,8 +134,12 @@ void main()
 
 		if(shadows_enabled)
 		{
-			float max_d = texture(shadow_maps[i], -L).r * far_plane;
-			light_m = Ramp(d - max_d, 0.f, 2.5e-2f, 1.f, 0.f);
+			if(dot(vin.tbn[2], L) < 0.f)
+			{
+				continue;
+			}
+
+			light_m = texture(shadow_maps, vec4(-L, i), d / far_plane);
 		
 			if(light_m <= 0.f)
 			{
diff --git a/assets/shader/main.vsh b/assets/shader/main.vsh
index abccc2a..f976320 100644
--- a/assets/shader/main.vsh
+++ b/assets/shader/main.vsh
@@ -2,32 +2,35 @@
 #version 460 core
 #extension GL_ARB_bindless_texture : require
 
-layout (location = 0) in sampler2D aTex;
-layout (location = 1) in vec2 aTexPos;
-layout (location = 2) in vec3 aPos;
-layout (location = 3) in vec3 aNormal;
-layout (location = 4) in vec4 aColour;
-layout (location = 5) in vec3 aMaterial;
-layout (location = 6) in float aTransformIndex;
+layout (location = 0) in vec2 aTexPos;
+layout (location = 1) in vec3 aPos;
+layout (location = 2) in vec4 aColour;
+layout (location = 3) in vec3 aTangent;
+layout (location = 4) in vec3 aBitangent;
+layout (location = 5) in vec3 aNormal;
+layout (location = 6) in int aTransformIndex;
+layout (location = 7) in sampler2D aTexDiffuse;
+layout (location = 8) in sampler2D aTexNormal;
+layout (location = 9) in vec3 aMaterial;
 
 uniform mat4 camera;
 uniform mat4 projection;
 
-layout (binding = 3) readonly buffer TransformBuffer1
+layout (std430, binding = 3) readonly buffer TransformBuffer
 {
 	mat4 transforms[];
 };
 
 out VS_OUT {
-	vec3 normal;
-	vec4 colour;
+	mat3 tbn;
 	vec3 pos;
 	vec2 tex_pos;
-	vec3 material;
-	float ambient;
+	flat vec4 colour;
+	flat vec3 material;
 } vout;
 
-out flat sampler2D frag_tex;
+out flat sampler2D frag_tex_diffuse;
+out flat sampler2D frag_tex_normal;
 
 mat4 load_model_mat(int index)
 {
@@ -42,17 +45,17 @@ float Map(float v, float i_min, float i_max, float o_min, float o_max)
 void main()
 {
 	vec4 pos = vec4(aPos, 1.f);
-	mat4 model = load_model_mat(int(aTransformIndex));
+	mat4 model = load_model_mat(aTransformIndex);
 	mat4 mv = camera * model;
 	mat4 mvp = projection * mv;
 
-	vout.normal = normalize(mat3(model) * aNormal);
-	vout.ambient = Map(dot(vout.normal, vec3(0.f, 0.f, 1.f)), -1.f, 1.f, 0.2f, 0.25f);
+	vout.tbn = mat3(model) * mat3(aTangent, aBitangent, aNormal);
 	vout.pos = (model * pos).xyz;
-	vout.colour = aColour;
 	vout.tex_pos = aTexPos;
-	vout.material = aMaterial;
-	frag_tex = aTex;
+	vout.colour = aColour;
+	vout.material = aMaterial.xyz;
+	frag_tex_diffuse = aTexDiffuse;
+	frag_tex_normal = aTexNormal;
 	
 	gl_Position = mvp * pos;
 }
diff --git a/assets/texture/scene/Reactor_Vessel.png b/assets/texture/scene/Reactor_Vessel.png
new file mode 100644
index 0000000..cb2e933
Binary files /dev/null and b/assets/texture/scene/Reactor_Vessel.png differ
diff --git a/assets/texture/scene/Reactor_Vessel_Normal.png b/assets/texture/scene/Reactor_Vessel_Normal.png
new file mode 100644
index 0000000..e813cee
Binary files /dev/null and b/assets/texture/scene/Reactor_Vessel_Normal.png differ
diff --git a/src/graphics/data/arrays.cpp b/src/graphics/data/arrays.cpp
index aaaba0c..3b7dba8 100644
--- a/src/graphics/data/arrays.cpp
+++ b/src/graphics/data/arrays.cpp
@@ -2,6 +2,7 @@
 #include <GL/glew.h>
 #include <GLFW/glfw3.h>
 
+#include <iostream>
 #include <assimp/Importer.hpp>
 
 #include "../shader.hpp"
@@ -19,39 +20,49 @@ static void* ptr_diff(void* a, void* b)
 void Arrays::vertex_attrib_pointers()
 {
 	Vertex v;
-	
-	glVertexAttribLPointer(0, 1, GL_UNSIGNED_INT64_ARB, sizeof(v), ptr_diff(&v.texid, &v));
+
+	glVertexAttribPointer(0, 2, GL_FLOAT, false, sizeof(v), ptr_diff(&v.texpos, &v));
 	glEnableVertexAttribArray(0);
-	
-	glVertexAttribPointer(1, 2, GL_FLOAT, false, sizeof(v), ptr_diff(&v.texpos, &v));
+
+	glVertexAttribPointer(1, 3, GL_FLOAT, false, sizeof(v), ptr_diff(&v.pos, &v));
 	glEnableVertexAttribArray(1);
 
-	glVertexAttribPointer(2, 3, GL_FLOAT, false, sizeof(v), ptr_diff(&v.pos, &v));
+	glVertexAttribPointer(2, 4, GL_FLOAT, false, sizeof(v), ptr_diff(&v.colour, &v));
 	glEnableVertexAttribArray(2);
 
-	glVertexAttribPointer(3, 3, GL_FLOAT, false, sizeof(v), ptr_diff(&v.normal, &v));
+	glVertexAttribPointer(3, 3, GL_FLOAT, true, sizeof(v), ptr_diff(&v.tbn[0], &v));
 	glEnableVertexAttribArray(3);
 
-	glVertexAttribPointer(4, 4, GL_FLOAT, false, sizeof(v), ptr_diff(&v.colour, &v));
+	glVertexAttribPointer(4, 3, GL_FLOAT, true, sizeof(v), ptr_diff(&v.tbn[1], &v));
 	glEnableVertexAttribArray(4);
 
-	glVertexAttribPointer(5, 3, GL_FLOAT, false, sizeof(v), ptr_diff(&v.material, &v));
+	glVertexAttribPointer(5, 3, GL_FLOAT, true, sizeof(v), ptr_diff(&v.tbn[2], &v));
 	glEnableVertexAttribArray(5);
 
-	glVertexAttribPointer(6, 1, GL_FLOAT, false, sizeof(v), ptr_diff(&v.transform_id, &v));
+	glVertexAttribIPointer(6, 1, GL_INT, sizeof(v), ptr_diff(&v.transform_id, &v));
 	glEnableVertexAttribArray(6);
+
+	glVertexAttribIPointer(7, 1, GL_UNSIGNED_INT, sizeof(v), ptr_diff(&v.tex_diffuse, &v));
+	glEnableVertexAttribArray(7);
+
+	glVertexAttribIPointer(8, 1, GL_UNSIGNED_INT, sizeof(v), ptr_diff(&v.tex_normal, &v));
+	glEnableVertexAttribArray(8);
+
+	glVertexAttribPointer(9, 3, GL_FLOAT, false, sizeof(v), ptr_diff(&v.material, &v));
+	glEnableVertexAttribArray(9);
 }
 
 std::ostream& Arrays::operator<<(std::ostream& os, const Vertex& v)
 {
 	os << "Vertex{";
-	os << "texid=" << v.texid << ", ";
 	os << "texpos=" << v.texpos << ", ";
 	os << "pos=" << v.pos << ", ";
-	os << "normal=" << v.normal << ", ";
 	os << "colour=" << v.colour << ", ";
-	os << "material=" << v.material << ", ";
-	os << "transform_id=" << v.transform_id;
+	os << "tbn=" << v.tbn << ", ";
+	os << "transform_id=" << v.transform_id << ", ";
+	os << "tex_diffuse=" << v.tex_diffuse << ", ";
+	os << "tex_normal=" << v.tex_normal << ", ";
+	os << "material=" << v.material;
 	os << "}";
 	return os;
 }
diff --git a/src/graphics/data/arrays.hpp b/src/graphics/data/arrays.hpp
index 734ad33..3f93e19 100644
--- a/src/graphics/data/arrays.hpp
+++ b/src/graphics/data/arrays.hpp
@@ -1,6 +1,8 @@
 
 #pragma once
 
+#include "texture.hpp"
+
 #include <glm/matrix.hpp>
 #include <ostream>
 
@@ -9,19 +11,20 @@ namespace Sim::Graphics::Data::Arrays
 
 struct Vertex
 {
-	unsigned long texid = 0;
 	glm::vec2 texpos = {0, 0};
 	glm::vec3 pos = {0, 0, 0};
-	glm::vec3 normal = {0, 0, 0};
 	glm::vec4 colour = {1, 1, 1, 1};
-	glm::vec3 material = {0, 0, 0};
-	float transform_id = -1;
+	glm::mat3 tbn = glm::mat3(1);
+	int transform_id = -1;
+	unsigned int tex_diffuse = Texture::handle_white;
+	unsigned int tex_normal = Texture::handle_normal;
+	glm::vec3 material = {0.5, 0, 0};
 
 	constexpr bool operator==(const Vertex&) const = default;
 
 	friend std::ostream& operator<<(std::ostream& os, const Vertex& v);
 
-} __attribute__((packed));
+};
 
 void vertex_attrib_pointers();
 
diff --git a/src/graphics/data/font.cpp b/src/graphics/data/font.cpp
index d3f9a68..cb78c28 100644
--- a/src/graphics/data/font.cpp
+++ b/src/graphics/data/font.cpp
@@ -11,13 +11,14 @@
 
 #include "mesh.hpp"
 #include "arrays.hpp"
+#include "material.hpp"
 #include "font.hpp"
 
 using namespace Sim::Graphics::Data;
 
 struct Character
 {
-	unsigned long handle;
+	uint32_t handle;
 	float advance;
 	glm::vec2 size;
 	glm::vec2 bearing;
@@ -94,7 +95,6 @@ void Font::init()
 
 		c.handle = glGetTextureHandleARB(texids[i]);
 		glMakeTextureHandleResidentARB(c.handle);
-
 		chars[i] = c;
 	}
 
@@ -144,10 +144,10 @@ Mesh& Mesh::load_text(const char* text, double size)
 		float ex = sx + ch.size.x * size;
 		float ey = sy + ch.size.y * size;
 
-		vertices.push_back(Arrays::Vertex{.texid=ch.handle, .texpos={0, 0}, .pos={sx, sy, 0}, .normal={0, 0, -1}, .material={0, 0, 1}});
-		vertices.push_back(Arrays::Vertex{.texid=ch.handle, .texpos={0, 1}, .pos={sx, ey, 0}, .normal={0, 0, -1}, .material={0, 0, 1}});
-		vertices.push_back(Arrays::Vertex{.texid=ch.handle, .texpos={1, 0}, .pos={ex, sy, 0}, .normal={0, 0, -1}, .material={0, 0, 1}});
-		vertices.push_back(Arrays::Vertex{.texid=ch.handle, .texpos={1, 1}, .pos={ex, ey, 0}, .normal={0, 0, -1}, .material={0, 0, 1}});
+		vertices.push_back(Arrays::Vertex{.texpos={0, 0}, .pos={sx, sy, 0}, .tex_diffuse=ch.handle, .material={0, 0, 1}});
+		vertices.push_back(Arrays::Vertex{.texpos={0, 1}, .pos={sx, ey, 0}, .tex_diffuse=ch.handle, .material={0, 0, 1}});
+		vertices.push_back(Arrays::Vertex{.texpos={1, 0}, .pos={ex, sy, 0}, .tex_diffuse=ch.handle, .material={0, 0, 1}});
+		vertices.push_back(Arrays::Vertex{.texpos={1, 1}, .pos={ex, ey, 0}, .tex_diffuse=ch.handle, .material={0, 0, 1}});
 		indices.insert(indices.end(), &index[0], &index[6]);
 
 		at += 4;
diff --git a/src/graphics/data/gllight.cpp b/src/graphics/data/gllight.cpp
deleted file mode 100644
index 5def4a8..0000000
--- a/src/graphics/data/gllight.cpp
+++ /dev/null
@@ -1,94 +0,0 @@
-
-#include <GL/glew.h>
-#include <GLFW/glfw3.h>
-
-#include "gllight.hpp"
-#include "../shader.hpp"
-#include "../window.hpp"
-#include "texture.hpp"
-
-#include <glm/ext/matrix_transform.hpp>
-#include <glm/ext/matrix_clip_space.hpp>
-
-using namespace Sim::Graphics::Data;
-
-static glm::mat4 shadow_mats[6];
-
-GLLight::GLLight(Light light) : light(light), size(1024)
-{
-	glGenTextures(1, &id);
-	glBindTexture(GL_TEXTURE_CUBE_MAP, id);
-	
-	for(int i = 0; i < 6; i++)
-	{
-		glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_DEPTH_COMPONENT, size, size, 0, GL_DEPTH_COMPONENT, GL_FLOAT, nullptr);
-	}
-
-	glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-	glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-	glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
-	glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-	glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-	glGenFramebuffers(1, &fbo);
-	glBindFramebuffer(GL_FRAMEBUFFER, fbo);
-	glFramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, id, 0);
-	glDrawBuffer(GL_NONE);
-	glReadBuffer(GL_NONE);
-
-	handle = glGetTextureHandleARB(id);
-	glMakeTextureHandleResidentARB(handle);
-}
-
-GLLight::GLLight(GLLight&& o) : light(o.light), size(o.size)
-{
-	id = o.id;
-	handle = o.handle;
-	fbo = o.fbo;
-
-	o.id = 0;
-	o.handle = 0;
-	o.fbo = 0;
-}
-
-GLLight::~GLLight()
-{
-	if(fbo)
-		glDeleteFramebuffers(1, &fbo);
-	if(id)
-		glDeleteTextures(1, &id);
-}
-
-void GLLight::render()
-{
-	glm::mat4 camera_mat = glm::translate(glm::mat4(1), -light.pos);
-	glUniformMatrix4fv(Shader::LIGHT["camera"], 1, false, &camera_mat[0][0]);
-	glBindFramebuffer(GL_FRAMEBUFFER, fbo);
-	glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
-	glViewport(0, 0, size, size);
-	Window::render_scene();
-}
-
-void GLLight::render_player()
-{
-	glm::mat4 camera_mat = glm::translate(glm::mat4(1), -light.pos);
-	glUniformMatrix4fv(Shader::LIGHT["camera"], 1, false, &camera_mat[0][0]);
-	glBindFramebuffer(GL_FRAMEBUFFER, fbo);
-	glViewport(0, 0, size, size);
-	Window::render_player();
-}
-
-void GLLight::init()
-{
-	glm::mat4 shadow_proj = glm::perspective<float>(M_PI * 0.5f, 1.0f, 0.01f, 100.f);
-
-	shadow_mats[0] = shadow_proj * glm::lookAt(glm::vec3(0), { 1, 0, 0}, {0,-1, 0});
-	shadow_mats[1] = shadow_proj * glm::lookAt(glm::vec3(0), {-1, 0, 0}, {0,-1, 0});
-	shadow_mats[2] = shadow_proj * glm::lookAt(glm::vec3(0), { 0, 1, 0}, {0, 0, 1});
-	shadow_mats[3] = shadow_proj * glm::lookAt(glm::vec3(0), { 0,-1, 0}, {0, 0,-1});
-	shadow_mats[4] = shadow_proj * glm::lookAt(glm::vec3(0), { 0, 0, 1}, {0,-1, 0});
-	shadow_mats[5] = shadow_proj * glm::lookAt(glm::vec3(0), { 0, 0,-1}, {0,-1, 0});
-
-	glUniformMatrix4fv(Shader::LIGHT["shadow_mats"], 6, false, &shadow_mats[0][0][0]);
-}
-
diff --git a/src/graphics/data/gllight.hpp b/src/graphics/data/gllight.hpp
deleted file mode 100644
index 44c4c25..0000000
--- a/src/graphics/data/gllight.hpp
+++ /dev/null
@@ -1,29 +0,0 @@
-
-#pragma once
-
-#include "light.hpp"
-
-namespace Sim::Graphics::Data
-{
-
-struct GLLight
-{
-	const int size;
-
-	unsigned int id, fbo;
-	unsigned long handle;
-	Light light;
-
-	GLLight(Light light);
-	GLLight(GLLight&& o);
-	GLLight(const GLLight& o) = delete;
-	~GLLight();
-	
-	static void init();
-
-	void render();
-	void render_player();
-};
-
-};
-
diff --git a/src/graphics/data/gllights.cpp b/src/graphics/data/gllights.cpp
new file mode 100644
index 0000000..4d037ae
--- /dev/null
+++ b/src/graphics/data/gllights.cpp
@@ -0,0 +1,88 @@
+
+#include <GL/glew.h>
+#include <GLFW/glfw3.h>
+
+#include "gllights.hpp"
+#include "../shader.hpp"
+#include "../window.hpp"
+#include "texture.hpp"
+
+#include <glm/ext/matrix_transform.hpp>
+#include <glm/ext/matrix_clip_space.hpp>
+
+using namespace Sim::Graphics::Data;
+
+static glm::mat4 shadow_mats[6];
+
+GLLights::GLLights(std::vector<Light>&& _lights) : lights(_lights), size(1024)
+{
+	glGenTextures(1, &texid);
+	glBindTexture(GL_TEXTURE_CUBE_MAP_ARRAY, texid);
+	glTexImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, 0, GL_DEPTH_COMPONENT, size, size, 6 * lights.size(), 0, GL_DEPTH_COMPONENT, GL_FLOAT, nullptr);
+
+	glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE);
+	glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_COMPARE_FUNC, GL_LESS);
+	glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+	glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+	glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
+	glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+	glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+	glGenFramebuffers(1, &fbo);
+	glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+	glFramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, texid, 0);
+	glDrawBuffer(GL_NONE);
+	glReadBuffer(GL_NONE);
+
+	glGenBuffers(1, &ssbo);
+	glBindBuffer(GL_SHADER_STORAGE_BUFFER, ssbo);
+	glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(Light) * lights.size(), lights.data(), GL_STATIC_COPY);
+}
+
+GLLights::GLLights(GLLights&& o) : lights(o.lights), size(o.size)
+{
+	texid = o.texid;
+	fbo = o.fbo;
+
+	o.texid = 0;
+	o.fbo = 0;
+}
+
+GLLights::~GLLights()
+{
+	if(fbo)
+		glDeleteFramebuffers(1, &fbo);
+	if(texid)
+		glDeleteTextures(1, &texid);
+}
+
+void GLLights::render()
+{
+	glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+	glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
+	glViewport(0, 0, size, size);
+
+	Window::bind_scene_ssbo();
+
+	for(int i = 0; i < lights.size(); i++)
+	{
+		glUniform3fv(Shader::LIGHT["light_pos"], 1, &lights[i].pos[0]);
+		glUniform1i(Shader::LIGHT["light_pass"], i);
+		Window::render_scene();
+	}
+}
+
+void GLLights::init()
+{
+	glm::mat4 shadow_proj = glm::perspective<float>(M_PI * 0.5f, 1.0f, 0.01f, 100.f);
+
+	shadow_mats[0] = shadow_proj * glm::lookAt(glm::vec3(0), { 1, 0, 0}, {0,-1, 0});
+	shadow_mats[1] = shadow_proj * glm::lookAt(glm::vec3(0), {-1, 0, 0}, {0,-1, 0});
+	shadow_mats[2] = shadow_proj * glm::lookAt(glm::vec3(0), { 0, 1, 0}, {0, 0, 1});
+	shadow_mats[3] = shadow_proj * glm::lookAt(glm::vec3(0), { 0,-1, 0}, {0, 0,-1});
+	shadow_mats[4] = shadow_proj * glm::lookAt(glm::vec3(0), { 0, 0, 1}, {0,-1, 0});
+	shadow_mats[5] = shadow_proj * glm::lookAt(glm::vec3(0), { 0, 0,-1}, {0,-1, 0});
+
+	glUniformMatrix4fv(Shader::LIGHT["shadow_mats"], 6, false, &shadow_mats[0][0][0]);
+}
+
diff --git a/src/graphics/data/gllights.hpp b/src/graphics/data/gllights.hpp
new file mode 100644
index 0000000..9fc3e44
--- /dev/null
+++ b/src/graphics/data/gllights.hpp
@@ -0,0 +1,30 @@
+
+#pragma once
+
+#include <vector>
+
+#include "light.hpp"
+
+namespace Sim::Graphics::Data
+{
+
+struct GLLights
+{
+	const int size;
+
+	unsigned int texid, fbo, ssbo;
+
+	std::vector<Light> lights;
+
+	GLLights(std::vector<Light>&& lights);
+	GLLights(GLLights&& o);
+	GLLights(const GLLights& o) = delete;
+	~GLLights();
+	
+	static void init();
+
+	void render();
+};
+
+};
+
diff --git a/src/graphics/data/material.hpp b/src/graphics/data/material.hpp
new file mode 100644
index 0000000..e4bc3ab
--- /dev/null
+++ b/src/graphics/data/material.hpp
@@ -0,0 +1,27 @@
+
+#pragma once
+
+#include <glm/vec4.hpp>
+
+namespace Sim::Graphics::Data
+{
+
+struct Material
+{
+	uint32_t diffuse = Texture::handle_white;
+	uint32_t normal = Texture::handle_normal;
+	glm::vec4 colour = {1, 1, 1, 1};
+	float roughness = 0.5;
+	float metalness = 0;
+	float luminance = 0;
+//	float padding = 0;
+
+/*	static void init();
+	static int create(Material m);
+	static void destroy(int id);
+	static Material get(int id);
+	static void sync();*/
+};
+
+};
+
diff --git a/src/graphics/data/mesh.cpp b/src/graphics/data/mesh.cpp
index e503629..ff20192 100644
--- a/src/graphics/data/mesh.cpp
+++ b/src/graphics/data/mesh.cpp
@@ -16,11 +16,21 @@ Mesh::Mesh()
 
 }
 
-Mesh& Mesh::set_texture_id(unsigned int id)
+Mesh& Mesh::set_diffuse_id(unsigned int id)
 {
 	for(unsigned int i = 0; i < vertices.size(); i++)
 	{
-		vertices[i].texid = id;
+		vertices[i].tex_diffuse = id;
+	}
+
+	return *this;
+}
+
+Mesh& Mesh::set_normal_id(unsigned int id)
+{
+	for(unsigned int i = 0; i < vertices.size(); i++)
+	{
+		vertices[i].tex_normal = id;
 	}
 
 	return *this;
@@ -50,12 +60,12 @@ Mesh& Mesh::add(const Mesh& o, glm::mat4 mat, bool bake)
 		for(int i = 0; i < o.vertices.size(); i++)
 		{
 			Arrays::Vertex v = o.vertices[i];
-			int t_id = (int)v.transform_id;
+			int t_id = v.transform_id;
 			glm::mat4 t_mat = t_id >= 0 ? transforms[t_id] : glm::mat4(1);
 			t_mat = mat * t_mat;
 			
 			v.pos = t_mat * glm::vec4(v.pos, 1);
-			v.normal = glm::normalize(glm::mat3(t_mat) * v.normal);
+			v.tbn = glm::mat3(t_mat) * v.tbn;
 			v.transform_id = -1;
 			vertices.push_back(v);
 		}
@@ -69,8 +79,8 @@ Mesh& Mesh::add(const Mesh& o, glm::mat4 mat, bool bake)
 	}
 
 	glm::mat3 mat3(mat);
-	float t_off = transforms.size();
-	float t_new = -1;
+	int t_off = transforms.size();
+	int t_new = -1;
 
 	if(mat != glm::mat4(1))
 	{
@@ -118,13 +128,13 @@ Mesh& Mesh::bake_transforms()
 {
 	for(unsigned int i = 0; i < vertices.size(); i++)
 	{
-		int id = (int)vertices[i].transform_id;
+		int id = vertices[i].transform_id;
 
 		if(id >= 0)
 		{
 			glm::mat4 transform = transforms[id];
 			vertices[i].pos = glm::vec3(transform * glm::vec4(vertices[i].pos, 1));
-			vertices[i].normal = glm::normalize(glm::mat3(transform) * vertices[i].normal);
+			vertices[i].tbn = glm::mat3(transform) * vertices[i].tbn;
 			vertices[i].transform_id = -1;
 		}
 	}
@@ -225,7 +235,7 @@ bool Mesh::check_intersect(vec3 pos, vec3 path) const
 
 		for(int j = 0; j < 3; j++)
 		{
-			int t_id = (int)verts[j].transform_id;
+			int t_id = verts[j].transform_id;
 			glm::mat4 t_mat = t_id >= 0 ? transforms[t_id] : glm::mat4(1);
 
 			v[j] = vec3(t_mat * glm::vec4(verts[j].pos, 1));
@@ -303,7 +313,7 @@ vec3 Mesh::calc_intersect(vec3 pos, vec3 path) const
 
 			for(int j = 0; j < 3; j++)
 			{
-				int t_id = (int)verts[j].transform_id;
+				int t_id = verts[j].transform_id;
 				glm::mat4 t_mat = t_id >= 0 ? transforms[t_id] : glm::mat4(1);
 
 				v[j] = vec3(t_mat * glm::vec4(verts[j].pos, 1));
diff --git a/src/graphics/data/mesh.hpp b/src/graphics/data/mesh.hpp
index 69ba390..3ffbd8e 100644
--- a/src/graphics/data/mesh.hpp
+++ b/src/graphics/data/mesh.hpp
@@ -26,7 +26,8 @@ struct Mesh
 
 	Mesh& bake_transforms();
 	Mesh& set_blank_transform();
-	Mesh& set_texture_id(unsigned int id);
+	Mesh& set_normal_id(unsigned int id);
+	Mesh& set_diffuse_id(unsigned int id);
 	Mesh& load_text(const char* text, double size);
 	Mesh& load_text(const char* text, double size, glm::vec2 align);
 	Mesh& add(const Mesh& o, glm::mat4 mat = glm::mat4(1), bool bake = false);
diff --git a/src/graphics/data/model.cpp b/src/graphics/data/model.cpp
index ec00973..057f493 100644
--- a/src/graphics/data/model.cpp
+++ b/src/graphics/data/model.cpp
@@ -6,6 +6,7 @@
 
 #include <unordered_map>
 #include <iostream>
+#include <sstream>
 #include <vector>
 
 #include "mesh.hpp"
@@ -24,106 +25,17 @@ struct ProcState
 	std::vector<Arrays::Vertex> vertices;
 	std::vector<unsigned int> indices;
 	std::vector<glm::mat4> transforms;
-	std::unordered_map<const aiTexture*, unsigned int> handles;
+	const std::vector<Material>& materials;
 };
 
-static unsigned int proc_texture(const ProcState& state, aiMaterial* mat, const aiScene* scene, aiTextureType type, int index)
-{
-	aiString str;
-	mat->GetTexture(type, index, &str);
-
-	if(str.C_Str()[0] == '\0')
-	{
-		return 0;
-	}
-	
-	const aiTexture* tex = scene->GetEmbeddedTexture(str.C_Str());
-
-	if(tex != nullptr)
-	{
-		unsigned int handle = state.handles.find(tex)->second;
-		std::cout << "Using preloaded texture: " << tex->mFilename.C_Str() << "\n";
-		return handle;
-	}
-
-	std::string filename(str.C_Str());
-	std::replace(filename.begin(), filename.end(), '\\', '/');
-
-	return Texture::load(state.base + "/" + filename);
-}
-
 static void proc_mesh(ProcState& state, aiMesh* mesh, const aiScene* scene)
 {
-	aiMaterial* material = scene->mMaterials[mesh->mMaterialIndex];
-	aiString name;
-
-	material->Get(AI_MATKEY_NAME, name);
-/*
-	std::cout << "Material " << name.C_Str() << " has " << material->mNumProperties << " properties\n";
-
-	for(int i = 0; i < material->mNumProperties; i++)
-	{
-		aiMaterialProperty* prop = material->mProperties[i];
-
-		std::cout << "  " << prop->mKey.C_Str() << ": type=" << prop->mType << " index=" << prop->mIndex << " length=" << prop->mDataLength;
-
-		if(prop->mType == 1)
-		{
-			float* v = (float*)prop->mData;
-
-			std::cout << " value=";
-
-			switch(prop->mDataLength)
-			{
-			case 4:
-				std::cout << v[0];
-				break;
-			case 8:
-				std::cout << "{" << v[0] << ", " << v[1] << "}";
-				break;
-			case 12:
-				std::cout << "{" << v[0] << ", " << v[1] << ", " << v[2] << "}";
-				break;
-			case 16:
-				std::cout << "{" << v[0] << ", " << v[1] << ", " << v[2] << ", " << v[3] << "}";
-				break;
-			default:
-				std::cout << "unknown";
-			}
-		}
-		
-		std::cout << "\n";
-	}*/
-
-	glm::vec3 matv(0);
-	aiColor4D ai_cb;
-	aiColor4D ai_em;
-
-	material->Get(AI_MATKEY_ROUGHNESS_FACTOR, matv[0]);
-	material->Get(AI_MATKEY_METALLIC_FACTOR, matv[1]);
-	material->Get(AI_MATKEY_EMISSIVE_INTENSITY, matv[2]);
-	material->Get(AI_MATKEY_COLOR_EMISSIVE, ai_em);
-	material->Get(AI_MATKEY_BASE_COLOR, ai_cb);
-
-	glm::vec4 cb = {ai_cb[0], ai_cb[1], ai_cb[2], ai_cb[3]};
-	glm::vec4 em = {ai_em[0], ai_em[1], ai_em[2], ai_em[3]};
-
-	if(em.x > 0 || em.y > 0 || em.z > 0)
-	{
-		cb = em;
-	}
-
-	unsigned int handle = proc_texture(state, material, scene, aiTextureType_BASE_COLOR, 0);
+	Material mat = state.materials[mesh->mMaterialIndex];
 	unsigned int offset = state.offset;
-
-	if(!handle)
+	
+	if(!mesh->HasNormals())
 	{
-		handle = proc_texture(state, material, scene, aiTextureType_DIFFUSE, 0);
-	}
-
-	if(!handle)
-	{
-		handle = Texture::handle_white;
+		throw std::runtime_error("Mesh has no normals");
 	}
 	
 	for(unsigned int i = 0; i < mesh->mNumVertices; i++)
@@ -131,31 +43,42 @@ static void proc_mesh(ProcState& state, aiMesh* mesh, const aiScene* scene)
 		Arrays::Vertex vertex;
 		
 		auto [x, y, z] = mesh->mVertices[i];
-		vertex.pos = glm::vec3(x, y, z);
 		vertex.transform_id = state.transforms.size();
-		vertex.material = matv;
-		vertex.texid = handle;
-		vertex.colour = cb;
-
-		if(mesh->HasNormals())
-		{
-			auto [x, y, z] = mesh->mNormals[i];
-			vertex.normal = glm::vec3(x, y, z);
-		}
+		vertex.pos = glm::vec3(x, y, z);
+		vertex.colour = mat.colour;
+		vertex.tex_diffuse = mat.diffuse;
+		vertex.tex_normal = mat.normal;
+		vertex.material = {mat.roughness, mat.metalness, mat.luminance};
 		
-		/*if(mesh->HasTangentsAndBitangents())
-		{
-			auto [x1, y1, z1] = mesh->mTangents[i];
-			auto [x2, y2, z2] = mesh->mBitangents[i];
-			vertex.tangent = {x1, y1, z1};
-			vertex.bitangent = {x2, y2, z2};
-		}*/
-
 		if(mesh->mTextureCoords[0])
 		{
 			auto [x, y, z] = mesh->mTextureCoords[0][i];
 			vertex.texpos = {x, y};
 		}
+		
+		if(mesh->HasTangentsAndBitangents())
+		{
+			auto [x1, y1, z1] = mesh->mTangents[i];
+			auto [x2, y2, z2] = mesh->mBitangents[i];
+			auto [x3, y3, z3] = mesh->mNormals[i];
+
+			vertex.tbn = {
+				{x1, y1, z1},
+				{x2, y2, z2},
+				{x3, y3, z3},
+			};
+		}
+
+		else
+		{
+			auto [x, y, z] = mesh->mNormals[i];
+
+			glm::vec3 normal = {x, y, z};
+			glm::vec3 tangent = glm::normalize(glm::cross(normal, {-y, z, x}));
+			glm::vec3 bitangent = glm::normalize(glm::cross(normal, tangent));
+
+			vertex.tbn = {tangent, bitangent, normal};
+		}
 
 		state.vertices.push_back(vertex);
 	}
@@ -223,7 +146,7 @@ static void proc_node(ProcState& state, glm::mat4 mat, aiNode* node, const aiSce
 	}
 }
 
-static unsigned int proc_embedded_texture(aiTexture* tex)
+static uint64_t proc_embedded_texture(aiTexture* tex)
 {
 	std::cout << "Loading embedded data: " << tex->mFilename.C_Str() << "\n";
 	
@@ -263,17 +186,40 @@ glm::mat4 Model::load_matrix(const char* name) const
 	return get_transforms(scene->mRootNode->FindNode(name));
 }
 
+static uint32_t proc_texture(
+		const std::string& path_base,
+		aiMaterial* mat,
+		const aiScene* scene,
+		aiTextureType type,
+		int index,
+		uint64_t handle_fail=0)
+{
+	aiString str;
+	mat->GetTexture(type, index, &str);
+
+	if(str.C_Str()[0] == '\0')
+	{
+		return handle_fail;
+	}
+	
+	std::string filename(str.C_Str());
+	std::replace(filename.begin(), filename.end(), '\\', '/');
+
+	return Texture::load(path_base + "/" + filename);
+}
+
 Model::Model(std::string base, std::string filename) : base(base)
 {
 	std::string path = base + "/" + filename;
-	scene = importer.ReadFile(path.c_str(), aiProcess_Triangulate | aiProcess_FlipUVs);
+	scene = importer.ReadFile(path.c_str(), aiProcess_Triangulate | aiProcess_FlipUVs | aiProcess_CalcTangentSpace);
 
 	textures.reserve(scene->mNumTextures);
+	materials.reserve(scene->mNumMaterials);
 
 	for(int i = 0; i < scene->mNumTextures; i++)
 	{
 		aiTexture* tex = scene->mTextures[i];
-		unsigned int handle = proc_embedded_texture(tex);
+		uint64_t handle = proc_embedded_texture(tex);
 		textures.push_back(handle);
 	}
 	
@@ -308,12 +254,54 @@ Model::Model(std::string base, std::string filename) : base(base)
 
 		cameras.push_back({.pos=glm::vec3(pos), .look=look, .up=up, .fov=camera->mHorizontalFOV});
 	}
+
+	for(int i = 0; i < scene->mNumMaterials; i++)
+	{
+		aiMaterial* ai_mat = scene->mMaterials[i];
+
+		glm::vec3 matv(0);
+		aiColor4D ai_cb;
+		aiColor4D ai_em;
+	
+		ai_mat->Get(AI_MATKEY_COLOR_EMISSIVE, ai_em);
+		ai_mat->Get(AI_MATKEY_BASE_COLOR, ai_cb);
+
+		glm::vec4 cb = {ai_cb[0], ai_cb[1], ai_cb[2], ai_cb[3]};
+		glm::vec4 em = {ai_em[0], ai_em[1], ai_em[2], ai_em[3]};
+
+		if(em.x > 0 || em.y > 0 || em.z > 0)
+		{
+			cb = em;
+		}
+
+		ai_mat->Get(AI_MATKEY_ROUGHNESS_FACTOR, matv[0]);
+		ai_mat->Get(AI_MATKEY_METALLIC_FACTOR, matv[1]);
+		ai_mat->Get(AI_MATKEY_EMISSIVE_INTENSITY, matv[2]);
+
+		uint32_t handle_diffuse = proc_texture(base, ai_mat, scene, aiTextureType_BASE_COLOR, 0, Texture::handle_white);
+		uint32_t handle_normal = proc_texture(base, ai_mat, scene, aiTextureType_NORMALS, 0, Texture::handle_normal);
+
+		Material mat = {
+			.diffuse = handle_diffuse,
+			.normal = handle_normal,
+			.colour = cb,
+			.roughness = matv[0],
+			.metalness = matv[1],
+			.luminance = matv[2],
+		};
+
+		materials.push_back(mat);
+	}
 }
 
 Mesh Model::load(const char* name, glm::mat4 mat) const
 {
 	Mesh mesh;
-	ProcState state {.base = base};
+	ProcState state {
+		.base = base,
+		.materials = materials,
+	};
+
 	proc_node(state, mat, scene->mRootNode, scene, name);
 
 	mesh.vertices = std::move(state.vertices);
diff --git a/src/graphics/data/model.hpp b/src/graphics/data/model.hpp
index e849f75..b7b056f 100644
--- a/src/graphics/data/model.hpp
+++ b/src/graphics/data/model.hpp
@@ -4,6 +4,7 @@
 #include "mesh.hpp"
 #include "light.hpp"
 #include "camera.hpp"
+#include "material.hpp"
 
 #include <string>
 #include <vector>
@@ -26,7 +27,8 @@ class Model
 
 public:
 
-	std::vector<uint64_t> textures;
+	std::vector<uint32_t> textures;
+	std::vector<Material> materials;
 	std::vector<Camera> cameras;
 	std::vector<Light> lights;
 
diff --git a/src/graphics/data/texture.cpp b/src/graphics/data/texture.cpp
index 0e6266c..7c82836 100644
--- a/src/graphics/data/texture.cpp
+++ b/src/graphics/data/texture.cpp
@@ -10,23 +10,28 @@
 
 using namespace Sim::Graphics::Data;
 
-static std::unordered_map<std::string, unsigned int> loaded; 
-unsigned int Texture::handle_white;
+static std::unordered_map<std::string, uint64_t> loaded;
+uint64_t Texture::handle_white;
+uint64_t Texture::handle_normal;
 
 void Texture::init()
 {
-	unsigned char pixels[] = {255, 255, 255, 255};
-	handle_white = load_mem(pixels, 1, 1, 4);
+	unsigned char pixels_white[] = {255, 255, 255};
+	unsigned char pixels_normal[] = {128, 128, 255};
+	handle_white = load_mem(pixels_white, 1, 1, 3);
+	handle_normal = load_mem(pixels_normal, 1, 1, 3);
 }
 
-unsigned int Texture::load_mem(const unsigned char* data, int width, int height, int channels)
+uint64_t Texture::load_mem(const void* data, int width, int height, int channels)
 {
 	if(!data)
 	{
 		return 0;
 	}
 
-	GLenum format, format_in;
+	GLenum format;
+	GLenum format_in;
+
 	switch(channels)
 	{
 	case 1:
@@ -45,8 +50,10 @@ unsigned int Texture::load_mem(const unsigned char* data, int width, int height,
 		format = GL_RGBA;
 		format_in = GL_RGBA8;
 		break;
+	default:
+		throw std::runtime_error("Invalid number of channels: " + std::to_string(channels));
 	}
-	
+
 	unsigned int texid;
 
 	glCreateTextures(GL_TEXTURE_2D, 1, &texid);
@@ -59,21 +66,21 @@ unsigned int Texture::load_mem(const unsigned char* data, int width, int height,
 	glTextureParameteri(texid, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 	glGenerateTextureMipmap(texid);
 
-	unsigned int handle = glGetTextureHandleARB(texid);
+	uint64_t handle = glGetTextureHandleARB(texid);
 	glMakeTextureHandleResidentARB(handle);
 	return handle;
 }
 
-unsigned int Texture::load_mem(const unsigned char* filedata, size_t len)
+uint64_t Texture::load_mem(const unsigned char* filedata, size_t len)
 {
 	int width, height, channels;
 	unsigned char* data = stbi_load_from_memory(filedata, len, &width, &height, &channels, 0);
-	unsigned int handle = load_mem(data, width, height, channels);
+	uint64_t handle = load_mem(data, width, height, channels);
 	stbi_image_free(data);
 	return handle;
 }
 
-unsigned int Texture::load(std::string path)
+uint64_t Texture::load(std::string path)
 {
 	const auto it = loaded.find(path);
 
@@ -84,7 +91,7 @@ unsigned int Texture::load(std::string path)
 
 	int width, height, channels;
 	unsigned char* data = stbi_load(path.c_str(), &width, &height, &channels, 0);
-	unsigned int handle = load_mem(data, width, height, channels);
+	uint64_t handle = load_mem(data, width, height, channels);
 	stbi_image_free(data);
 
 	if(handle == 0)
diff --git a/src/graphics/data/texture.hpp b/src/graphics/data/texture.hpp
index 223a135..3a3af33 100644
--- a/src/graphics/data/texture.hpp
+++ b/src/graphics/data/texture.hpp
@@ -1,17 +1,20 @@
 
 #pragma once
 
+#include <GL/glew.h>
+
 #include <string>
 
 namespace Sim::Graphics::Data::Texture
 {
 
-extern unsigned int handle_white;
+extern uint64_t handle_white;
+extern uint64_t handle_normal;
 
 void init();
-unsigned int load(std::string path);
-unsigned int load_mem(const unsigned char* data, int width, int height, int channels);
-unsigned int load_mem(const unsigned char* data, size_t len);
+uint64_t load(std::string path);
+uint64_t load_mem(const void* data, int width, int height, int channels);
+uint64_t load_mem(const unsigned char* data, size_t len);
 
 };
 
diff --git a/src/graphics/monitor/cctv.cpp b/src/graphics/monitor/cctv.cpp
index 0884820..12f1244 100644
--- a/src/graphics/monitor/cctv.cpp
+++ b/src/graphics/monitor/cctv.cpp
@@ -12,6 +12,7 @@
 #include "../window.hpp"
 #include "../camera.hpp"
 #include "../input/focus.hpp"
+#include "../data/texture.hpp"
 #include "../../system.hpp"
 #include "../../util/math.hpp"
 #include "../../util/streams.hpp"
@@ -150,10 +151,10 @@ CCTV::CCTV(Model& model)
 	glMakeTextureHandleResidentARB(handle);
 
 	m_screen.vertices = {
-		{.texid=handle, .texpos={0, 1}, .pos={0, 0, 0}, .normal={0, 0, 1}, .material={0, 0, 1}, .transform_id=0},
-		{.texid=handle, .texpos={0, 0}, .pos={0, 1, 0}, .normal={0, 0, 1}, .material={0, 0, 1}, .transform_id=0},
-		{.texid=handle, .texpos={1, 1}, .pos={1, 0, 0}, .normal={0, 0, 1}, .material={0, 0, 1}, .transform_id=0},
-		{.texid=handle, .texpos={1, 0}, .pos={1, 1, 0}, .normal={0, 0, 1}, .material={0, 0, 1}, .transform_id=0},
+		{.texpos={0, 1}, .pos={0, 0, 0}, .transform_id=0, .tex_diffuse=handle, .material={0, 0, 1}},
+		{.texpos={0, 0}, .pos={0, 1, 0}, .transform_id=0, .tex_diffuse=handle, .material={0, 0, 1}},
+		{.texpos={1, 1}, .pos={1, 0, 0}, .transform_id=0, .tex_diffuse=handle, .material={0, 0, 1}},
+		{.texpos={1, 0}, .pos={1, 1, 0}, .transform_id=0, .tex_diffuse=handle, .material={0, 0, 1}},
 	};
 	m_screen.indices = {0, 1, 3, 0, 3, 2};
 	m_screen.transforms = {model.load_matrix("translation_monitor_1")};
@@ -250,7 +251,9 @@ void CCTV::render_view()
 	glUniformMatrix4fv(Shader::MAIN["camera"], 1, false, &view[0][0]);
 	glUniform3fv(Shader::MAIN["camera_pos"], 1, &active.pos[0]);
 
+	Window::bind_scene_ssbo();
 	Window::render_scene();
+	Window::render_dynamic();
 	Window::render_player();
 }
 
diff --git a/src/graphics/monitor/cctv.hpp b/src/graphics/monitor/cctv.hpp
index c39bde4..678698f 100644
--- a/src/graphics/monitor/cctv.hpp
+++ b/src/graphics/monitor/cctv.hpp
@@ -25,7 +25,6 @@ class CCTV : public Data::MeshGen
 	const int width;
 	const int height;
 
-
 public:
 	
 	std::vector<Data::Camera> cameras;
diff --git a/src/graphics/monitor/core.cpp b/src/graphics/monitor/core.cpp
index e4de59f..54494c4 100644
--- a/src/graphics/monitor/core.cpp
+++ b/src/graphics/monitor/core.cpp
@@ -146,10 +146,10 @@ static Data::Mesh add_dot(glm::mat4 model_mat, glm::vec4 colour)
 
 	mesh.indices = {0, 1, 3, 0, 3, 2};
 	mesh.vertices = {
-		{.texid=Texture::handle_white, .texpos={0, 0}, .pos=glm::vec3(model_mat * glm::vec4(-0.75, -0.75, 0, 1)), .normal={0, 0, -1}, .colour=colour, .material={0, 0, 1}}, 
-		{.texid=Texture::handle_white, .texpos={0, 1}, .pos=glm::vec3(model_mat * glm::vec4(-0.75,  0.75, 0, 1)), .normal={0, 0, -1}, .colour=colour, .material={0, 0, 1}}, 
-		{.texid=Texture::handle_white, .texpos={1, 0}, .pos=glm::vec3(model_mat * glm::vec4( 0.75, -0.75, 0, 1)), .normal={0, 0, -1}, .colour=colour, .material={0, 0, 1}}, 
-		{.texid=Texture::handle_white, .texpos={1, 1}, .pos=glm::vec3(model_mat * glm::vec4( 0.75,  0.75, 0, 1)), .normal={0, 0, -1}, .colour=colour, .material={0, 0, 1}}, 
+		{.texpos={0, 0}, .pos=glm::vec3(model_mat * glm::vec4(-0.75, -0.75, 0, 1)), .colour=colour, .material={0, 0, 1}}, 
+		{.texpos={0, 1}, .pos=glm::vec3(model_mat * glm::vec4(-0.75,  0.75, 0, 1)), .colour=colour, .material={0, 0, 1}}, 
+		{.texpos={1, 0}, .pos=glm::vec3(model_mat * glm::vec4( 0.75, -0.75, 0, 1)), .colour=colour, .material={0, 0, 1}}, 
+		{.texpos={1, 1}, .pos=glm::vec3(model_mat * glm::vec4( 0.75,  0.75, 0, 1)), .colour=colour, .material={0, 0, 1}}, 
 	};
 
 	return mesh;
diff --git a/src/graphics/ui.cpp b/src/graphics/ui.cpp
index 66f80d2..8c2eb01 100644
--- a/src/graphics/ui.cpp
+++ b/src/graphics/ui.cpp
@@ -18,7 +18,7 @@
 
 using namespace Sim::Graphics;
 
-static Data::GLMesh gm_ui;
+static Data::Mesh g_ui;
 static Data::GLMesh gm_dynamic_slow[2];
 static Widget::Clock w_clock;
 
@@ -26,21 +26,14 @@ static int gm_dynamic_slow_at = 0;
 
 void UI::init()
 {
-	Data::Mesh m;
-
-	unsigned int handle = Data::Texture::handle_white;
-	m.indices = {0, 1, 3, 0, 3, 2};
-	m.vertices = {
-		{.texid=handle, .texpos={0, 0}, .pos={-1, -1, 0}, .normal={0, 0, -1}, .colour={1, 1, 1, 1}, .material={0, 0, 1}},
-		{.texid=handle, .texpos={0, 1}, .pos={-1,  1, 0}, .normal={0, 0, -1}, .colour={1, 1, 1, 1}, .material={0, 0, 1}},
-		{.texid=handle, .texpos={1, 0}, .pos={ 1, -1, 0}, .normal={0, 0, -1}, .colour={1, 1, 1, 1}, .material={0, 0, 1}},
-		{.texid=handle, .texpos={1, 1}, .pos={ 1,  1, 0}, .normal={0, 0, -1}, .colour={1, 1, 1, 1}, .material={0, 0, 1}},
+	g_ui.indices = {0, 1, 3, 0, 3, 2};
+	g_ui.vertices = {
+		{.texpos={0, 0}, .pos={-1, -1, 0}, .material={0, 0, 1}},
+		{.texpos={0, 1}, .pos={-1,  1, 0}, .material={0, 0, 1}},
+		{.texpos={1, 0}, .pos={ 1, -1, 0}, .material={0, 0, 1}},
+		{.texpos={1, 1}, .pos={ 1,  1, 0}, .material={0, 0, 1}},
 	};
-
-	m.bake_transforms();
-
-	gm_ui.bind();
-	gm_ui.set(m, GL_STATIC_DRAW);
+	g_ui.bake_transforms();
 }
 
 void UI::update(double dt)
@@ -54,10 +47,11 @@ void UI::update_slow()
 
 	w_clock.remesh_slow(mesh);
 
+	mesh.add(g_ui);
 	mesh.bake_transforms();
 
 	gm_dynamic_slow[gm_dynamic_slow_at].bind();
-	gm_dynamic_slow[gm_dynamic_slow_at].set(mesh, GL_DYNAMIC_DRAW);
+	gm_dynamic_slow[gm_dynamic_slow_at].set(mesh, GL_STREAM_DRAW);
 	gm_dynamic_slow_at = (gm_dynamic_slow_at + 1) % 2;
 }
 
@@ -71,9 +65,6 @@ void UI::render()
 	glm::mat4 mat_camera = glm::scale(glm::mat4(1), glm::vec3(1.0f / wsize * glm::vec2(1, -1), -1));
 	glUniformMatrix4fv(Shader::MAIN["projection"], 1, false, &mat_projection[0][0]);
 	glUniformMatrix4fv(Shader::MAIN["camera"], 1, false, &mat_camera[0][0]);
-
-	gm_ui.bind();
-	gm_ui.render();
 	
 	gm_dynamic_slow[gm_dynamic_slow_at].bind();
 	gm_dynamic_slow[gm_dynamic_slow_at].render();
diff --git a/src/graphics/window.cpp b/src/graphics/window.cpp
index daec62e..2c9a403 100644
--- a/src/graphics/window.cpp
+++ b/src/graphics/window.cpp
@@ -28,8 +28,9 @@
 #include "monitor/cctv.hpp"
 #include "data/texture.hpp"
 #include "data/model.hpp"
-#include "data/gllight.hpp"
+#include "data/gllights.hpp"
 #include "data/meshgen.hpp"
+#include "data/material.hpp"
 #include "equipment/reactor.hpp"
 #include "equipment/generator.hpp"
 #include "equipment/pool.hpp"
@@ -37,6 +38,7 @@
 #include "../util/streams.hpp"
 #include "ui.hpp"
 
+using namespace Sim;
 using namespace Sim::Graphics;
 using namespace Sim::Graphics::Data;
 
@@ -44,8 +46,6 @@ constexpr int SSBO_TRANSFORMS_LEN = 2;
 
 static GLFWwindow* win;
 static bool win_should_close = false;
-static unsigned int ssbo_lights;
-static unsigned int ssbo_shadow_maps;
 static unsigned int ssbo_transforms[SSBO_TRANSFORMS_LEN];
 static unsigned int wait_at = 0;
 
@@ -59,7 +59,7 @@ static GLMesh gm_scene;
 static GLMesh gm_player;
 static GLMesh gm_dynamic_slow[2];
 
-static std::vector<GLLight> lights;
+static std::unique_ptr<GLLights> lights;
 static std::vector<MeshGen*> monitors;
 static std::vector<MeshGen*> equipment;
 
@@ -101,10 +101,6 @@ void remesh_static()
 	std::cout << "Total triangle count: " << mesh.indices.size() / 3 << "\n";
 }
 
-void render_shadow_map()
-{
-}
-
 void Window::create()
 {
 	glfwInit();
@@ -195,12 +191,6 @@ void Window::create()
 
 	Camera::init(model);
 
-	// send all the light data
-	glGenBuffers(1, &ssbo_lights);
-	glBindBuffer(GL_SHADER_STORAGE_BUFFER, ssbo_lights);
-	glBufferData(GL_SHADER_STORAGE_BUFFER, model.lights.size() * sizeof(model.lights[0]), &model.lights[0], GL_STATIC_DRAW);
-	glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, ssbo_lights);
-
 	glUniform1i(Shader::MAIN["lights_count"], model.lights.size());
 
 	monitors.push_back(new Monitor::Core(model));
@@ -221,28 +211,14 @@ void Window::create()
 	// setup lighting and prerender shadows
 	Shader::LIGHT.use();
 	glUniform1f(Shader::LIGHT["far_plane"], 100.0f);
-	GLLight::init();
+	GLLights::init();
 	
-	std::vector<unsigned long> light_handles;
-	
-	for(int i = 0; i < model.lights.size(); i++)
-	{
-		GLLight light(model.lights[i]);
-		light.render();
-
-		light_handles.push_back(light.handle);
-		lights.push_back(std::move(light));
-	}
+	lights = std::make_unique<GLLights>(std::move(model.lights));
+	glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, lights->ssbo);
 
 	Shader::MAIN.use();
 	glUniform1f(Shader::MAIN["far_plane"], 100.0f);
 	glUniform1i(Shader::MAIN["shadows_enabled"], 1);
-	
-	// send all the light shadow map handles
-	glGenBuffers(1, &ssbo_shadow_maps);
-	glBindBuffer(GL_SHADER_STORAGE_BUFFER, ssbo_shadow_maps);
-	glBufferData(GL_SHADER_STORAGE_BUFFER, light_handles.size() * sizeof(light_handles[0]), &light_handles[0], GL_STATIC_DRAW);
-	glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, ssbo_shadow_maps);
 
 	// setup the transforms ssbos and their initial values
 	
@@ -344,31 +320,38 @@ void Window::render_player()
 	gm_player.render();
 }
 
+void Window::bind_scene_ssbo()
+{
+	glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 3, ssbo_transforms[ssbo_transforms_at]);
+}
+
 void Window::render_scene()
 {
 	gm_scene.bind();
-	glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 3, ssbo_transforms[ssbo_transforms_at]);
 	gm_scene.render();
-
-	gm_dynamic_slow[gm_dynamic_slow_at].bind();
-	gm_dynamic_slow[gm_dynamic_slow_at].render();
 	
 	Focus::render();
 }
 
+void Window::render_dynamic()
+{
+	gm_dynamic_slow[gm_dynamic_slow_at].bind();
+	gm_dynamic_slow[gm_dynamic_slow_at].render();
+}
+
 void Window::render()
 {
-	Shader::LIGHT.use();
-	for(auto& light : lights)
-	{
-		light.render();
-	}
+	glFrontFace(GL_CCW);
 
 	glm::vec<2, int> size = Resize::get_size();
 	glm::vec3 camera_pos = Camera::get_pos();
 	glm::mat4 mat_camera = Camera::get_matrix();
 
 	Shader::MAIN.use();
+
+	glActiveTexture(GL_TEXTURE0);
+	glBindTexture(GL_TEXTURE_CUBE_MAP_ARRAY, lights->texid);
+	glUniform1i(Shader::MAIN["shadow_maps"], 0);
 	
 	glm::vec3 brightness = glm::vec3(System::active->grid.get_light_intensity());
 	glm::mat4 mat_projection = glm::perspective(glm::radians(90.0f), Resize::get_aspect(), 0.01f, 100.f);
@@ -392,20 +375,23 @@ void Window::render()
 	glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
 	glViewport(0, 0, size.x, size.y);
 
-	glFrontFace(GL_CCW);
-
+	bind_scene_ssbo();
 	render_scene();
+	render_dynamic();
 	monitor_cctv->render_screen();
 
 	brightness = glm::vec3(1);
 	glBindFramebuffer(GL_FRAMEBUFFER, 0);
 	glUniform3fv(Shader::MAIN["brightness"], 1, &brightness[0]);
-	glClear(GL_DEPTH_BUFFER_BIT);
 
 	UI::render();
 	Focus::render_ui();
 
 	glfwSwapBuffers(win);
+	
+	Shader::LIGHT.use();
+	glFrontFace(GL_CW);
+	lights->render();
 }
 
 bool Window::should_close()
diff --git a/src/graphics/window.hpp b/src/graphics/window.hpp
index 0baf471..8e90e53 100644
--- a/src/graphics/window.hpp
+++ b/src/graphics/window.hpp
@@ -1,11 +1,12 @@
 
 #pragma once
 
-#include <GLFW/glfw3.h>
 #include <glm/matrix.hpp>
 
 #include "../system.hpp"
 
+struct GLFWwindow;
+
 namespace Sim::Graphics::Window
 {
 
@@ -16,7 +17,9 @@ void create();
 void reload();
 void update(double dt);
 void render();
+void bind_scene_ssbo();
 void render_scene();
+void render_dynamic();
 void render_player();
 void destroy();
 void close();
diff --git a/src/reactor/rod.hpp b/src/reactor/rod.hpp
index 48e19f0..2396cfa 100644
--- a/src/reactor/rod.hpp
+++ b/src/reactor/rod.hpp
@@ -10,12 +10,14 @@
 namespace Sim::Reactor
 {
 
+struct Reactor;
+
 class Rod
 {
 public:
 	
 	bool selected = false;
-	void* reactor = nullptr;
+	Reactor* reactor = nullptr;
 	static const int VAL_N = 3;
 	
 	enum val_t