diff --git a/src/main.rs b/src/main.rs
index 93958e3..717dc60 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -7,6 +7,7 @@
 
 use anyhow::{anyhow, Result};
 use log::*;
+use scene::generators;
 use winit::dpi::{LogicalSize, LogicalPosition};
 use winit::event::{ElementState, Event, WindowEvent};
 use winit::event_loop::EventLoop;
@@ -222,6 +223,7 @@ impl App {
         image::create_texture_image_view(&device, &mut data)?;
         image::create_texture_sampler(&device, &mut data)?;
         
+        generators::generate_test_scene(&mut scene_handler, &mut data)?;
         scene_handler.prepare_data(&instance, &device, &mut data)?;
 
         buffer::create_uniform_buffers(&instance, &device, &mut data)?;
@@ -237,7 +239,7 @@ impl App {
             cam_angle_x: 0.0, cam_angle_y: 0.0, 
             last_pos: LogicalPosition::new(-1 as f32, -1 as f32), 
             view_direction: vertex::Vec3::new(0.0, 0.0, 0.0),
-            cur_pos: cgmath::point3(0.0, 0.0, 0.0),
+            cur_pos: cgmath::point3(5.0, 5.0, 10.0),
             scene_handler,
             show_frame_rate: false,
             synchronized: 0
diff --git a/src/scene/empty_volume.rs b/src/scene/empty_volume.rs
index 5277686..38b690a 100644
--- a/src/scene/empty_volume.rs
+++ b/src/scene/empty_volume.rs
@@ -1,6 +1,6 @@
-use cgmath::Vector3;
+use cgmath::{ElementWise, Vector3};
 
-use std::cell::RefCell;
+use std::cell::{RefCell, Ref};
 use std::rc::Rc;
 
 use std::time::Instant;
@@ -24,6 +24,8 @@ pub struct EmptyVolume {
     pub size_y: usize,
     pub size_z: usize,
 
+    pub tree_offset: Vector3<usize>,
+    pub tree_size: usize,
     pub position: Vector3<usize>,
     
     pub color_left: Vec<Vector3<u8>>,
@@ -63,22 +65,22 @@ impl EmptyVolume {
     }
 
     // MARK: From Oct Tree
-    pub fn from_oct_tree(tree: &OctTree<Cube>) -> (Vec<Rc<RefCell<EmptyVolume>>>, OctTree<Rc<RefCell<EmptyVolume>>>) {
+    pub fn from_oct_tree(tree: &Rc<RefCell<OctTree<Cube>>>, tree_offset: Vector3<usize>) -> (Vec<Rc<RefCell<EmptyVolume>>>, OctTree<Rc<RefCell<EmptyVolume>>>) {
         // todo: ppotentially use a child exist check while going through the oct tree to find some obvios starting empty volumes. Will still need to check for possible expansions though
         let mut volumes: Vec<Rc<RefCell<EmptyVolume>>> = vec![];
 
-        let mut neighbors: OctTree<Rc<RefCell<EmptyVolume>>> = OctTree::create(tree.size).unwrap();
+        let mut neighbors: OctTree<Rc<RefCell<EmptyVolume>>> = OctTree::create(tree.borrow().size).unwrap();
         let start_time = Instant::now();
         // iterate over all block positions in the oct tree
         let mut check_its = 0;
         let mut x_index = 0;
-        while x_index < tree.size {
+        while x_index < tree.borrow().size {
             let mut y_index = 0;
-            while y_index < tree.size {
+            while y_index < tree.borrow().size {
                 let mut z_index = 0;
-                while z_index < tree.size {
+                while z_index < tree.borrow().size {
                     // check if there is a block at that position
-                    let query_result = tree.test_element(x_index, y_index, z_index);
+                    let query_result = tree.borrow().test_element(x_index, y_index, z_index);
                     let mut transparent = false;
                     let mut transparent_color = Vector3 {x: 0.0, y: 0.0, z: 0.0};
                     let mut tranparent_roughness = 0;
@@ -116,12 +118,12 @@ impl EmptyVolume {
                         }
                         let mut grow = true;
                         while grow {
-                            grow &= (x_index + x_size + 1) < tree.size;
+                            grow &= (x_index + x_size + 1) < tree.borrow().size;
                             if grow {
                                 let mut z = 0;
                                 let mut y = 0;
                                 while z < z_size.max(1) && y < y_size.max(1) {
-                                    let query_result = tree.test_element(x_index + x_size + 1, y_index + y, z_index + z);
+                                    let query_result = tree.borrow().test_element(x_index + x_size + 1, y_index + y, z_index + z);
                                     check_its += 1;
                                     grow &= ((!query_result.0 && !transparent) || (transparent && EmptyVolume::check_transparent(query_result.3, &transparent_color, &tranparent_roughness))) &&
                                         neighbors.get_element(x_index + x_size + 1, y_index + y, z_index + z).is_none();
@@ -163,12 +165,12 @@ impl EmptyVolume {
                         println!("start growing volume y");
                         grow = true;
                         while grow {
-                            grow &= (y_index + y_size + 1) < tree.size;
+                            grow &= (y_index + y_size + 1) < tree.borrow().size;
                             if grow {
                                 let mut z = 0;
                                 let mut x = 0;
                                 while z < z_size.max(1) && x < x_size.max(1) {
-                                    let query_result = tree.test_element(x_index + x, y_index + y_size + 1, z_index + z);
+                                    let query_result = tree.borrow().test_element(x_index + x, y_index + y_size + 1, z_index + z);
                                     check_its += 1;
                                     grow &= ((!query_result.0 && !transparent) || (transparent && EmptyVolume::check_transparent(query_result.3, &transparent_color, &tranparent_roughness))) &&
                                         neighbors.get_element(x_index + x, y_index + y_size + 1, z_index + z).is_none();
@@ -211,12 +213,12 @@ impl EmptyVolume {
                         println!("start growing volume z");
                         grow = true;
                         while grow {
-                            grow &= (z_index + z_size + 1) < tree.size;
+                            grow &= (z_index + z_size + 1) < tree.borrow().size;
                             if grow {
                                 let mut y = 0;
                                 let mut x = 0;
                                 while y < y_size.max(1) && x < x_size.max(1) {
-                                    let query_result = tree.test_element(x_index + x, y_index + y, z_index + z_size + 1);
+                                    let query_result = tree.borrow().test_element(x_index + x, y_index + y, z_index + z_size + 1);
                                     check_its += 1;
                                     grow &= ((!query_result.0 && !transparent) || (transparent && EmptyVolume::check_transparent(query_result.3, &transparent_color, &tranparent_roughness))) &&
                                         neighbors.get_element(x_index + x, y_index + y, z_index + z_size + 1).is_none();
@@ -262,6 +264,8 @@ impl EmptyVolume {
                             size_x: x_size + 1,
                             size_y: y_size + 1,
                             size_z: z_size + 1,
+                            tree_offset,
+                            tree_size: tree.borrow().size,
                             position: Vector3{x: x_index, y: y_index, z: z_index},
                             color_left: vec![],
                             color_right: vec![],
@@ -330,7 +334,7 @@ impl EmptyVolume {
                         let mut bottom_elements_num = 0;
                         for x in 0..x_size+1 {
                             for y in 0..y_size+1 {
-                                if let Some(c) = tree.get_element(reference.borrow().position.x + x, reference.borrow().position.y + y, z_min_pos) {
+                                if let Some(c) = tree.borrow().get_element(reference.borrow().position.x + x, reference.borrow().position.y + y, z_min_pos) {
                                     bottom_elements_num += 1;
                                     let u8_color = Vector3 {x: (c.color * 255.0).x.min(255.0).max(0.0) as u8, y: (c.color * 255.0).y.min(255.0).max(0.0) as u8, z: (c.color * 255.0).z.min(255.0).max(0.0) as u8};
                                     bottom_colors.push(u8_color);
@@ -356,7 +360,7 @@ impl EmptyVolume {
                         let mut top_elements_num = 0;
                         for x in 0..x_size+1 {
                             for y in 0..y_size+1 {
-                                if let Some(c) = tree.get_element(reference.borrow().position.x + x, reference.borrow().position.y + y, z_max_pos) {
+                                if let Some(c) = tree.borrow().get_element(reference.borrow().position.x + x, reference.borrow().position.y + y, z_max_pos) {
                                     top_elements_num += 1;
                                     let u8_color = Vector3 {x: (c.color * 255.0).x.min(255.0).max(0.0) as u8, y: (c.color * 255.0).y.min(255.0).max(0.0) as u8, z: (c.color * 255.0).z.min(255.0).max(0.0) as u8};
                                     top_colors.push(u8_color);
@@ -383,7 +387,7 @@ impl EmptyVolume {
                         let mut back_elements_num = 0;
                         for x in 0..x_size+1 {
                             for z in 0..z_size+1 {
-                                if let Some(c) = tree.get_element(reference.borrow().position.x + x, y_max_pos, reference.borrow().position.z + z) {
+                                if let Some(c) = tree.borrow().get_element(reference.borrow().position.x + x, y_max_pos, reference.borrow().position.z + z) {
                                     back_elements_num += 1;
                                     let u8_color = Vector3 {x: (c.color * 255.0).x.min(255.0).max(0.0) as u8, y: (c.color * 255.0).y.min(255.0).max(0.0) as u8, z: (c.color * 255.0).z.min(255.0).max(0.0) as u8};
                                     back_colors.push(u8_color);
@@ -410,7 +414,7 @@ impl EmptyVolume {
                         let mut front_elements_num = 0;
                         for x in 0..x_size+1 {
                             for z in 0..z_size+1 {
-                                if let Some(c) = tree.get_element(reference.borrow().position.x + x, y_min_pos, reference.borrow().position.z + z) {
+                                if let Some(c) = tree.borrow().get_element(reference.borrow().position.x + x, y_min_pos, reference.borrow().position.z + z) {
                                     front_elements_num += 1;
                                     let u8_color = Vector3 {x: (c.color * 255.0).x.min(255.0).max(0.0) as u8, y: (c.color * 255.0).y.min(255.0).max(0.0) as u8, z: (c.color * 255.0).z.min(255.0).max(0.0) as u8};
                                     front_colors.push(u8_color);
@@ -437,7 +441,7 @@ impl EmptyVolume {
                         let mut left_elements_num = 0;
                         for y in 0..y_size+1 {
                             for z in 0..z_size+1 {
-                                if let Some(c) = tree.get_element(x_min_pos, reference.borrow().position.y + y, reference.borrow().position.z + z) {
+                                if let Some(c) = tree.borrow().get_element(x_min_pos, reference.borrow().position.y + y, reference.borrow().position.z + z) {
                                     left_elements_num += 1;
                                     let u8_color = Vector3 {x: (c.color * 255.0).x.min(255.0).max(0.0) as u8, y: (c.color * 255.0).y.min(255.0).max(0.0) as u8, z: (c.color * 255.0).z.min(255.0).max(0.0) as u8};
                                     left_colors.push(u8_color);
@@ -464,7 +468,7 @@ impl EmptyVolume {
                         let mut right_elements_num = 0;
                         for y in 0..y_size+1 {
                             for z in 0..z_size+1 {
-                                if let Some(c) = tree.get_element(x_max_pos, reference.borrow().position.y + y, reference.borrow().position.z + z) {
+                                if let Some(c) = tree.borrow().get_element(x_max_pos, reference.borrow().position.y + y, reference.borrow().position.z + z) {
                                     right_elements_num += 1;
                                     let u8_color = Vector3 {x: (c.color * 255.0).x.min(255.0).max(0.0) as u8, y: (c.color * 255.0).y.min(255.0).max(0.0) as u8, z: (c.color * 255.0).z.min(255.0).max(0.0) as u8};
                                     right_colors.push(u8_color);
@@ -540,6 +544,7 @@ impl EmptyVolume {
                         }
                         else {
                             bottom_neighbors.push(None);
+                            all_same = all_same && (bottom_neighbors[0] == None);
                         }
                     }
                 }
@@ -568,6 +573,7 @@ impl EmptyVolume {
                     }
                     else {
                         top_neighbors.push(None);
+                        all_same = all_same && (top_neighbors[0] == None);
                     }
                 }
             }
@@ -596,6 +602,7 @@ impl EmptyVolume {
                     }
                     else {
                         back_neighbors.push(None);
+                        all_same = all_same && (back_neighbors[0] == None);
                     }
                 }
             }
@@ -625,6 +632,7 @@ impl EmptyVolume {
                         }
                         else {
                             front_neighbors.push(None);
+                            all_same = all_same && (front_neighbors[0] == None);
                         }
                     }
                 }
@@ -655,6 +663,7 @@ impl EmptyVolume {
                         }
                         else {
                             left_neighbors.push(None);
+                            all_same = all_same && (left_neighbors[0] == None);
                         }
                     }
                 }
@@ -684,6 +693,7 @@ impl EmptyVolume {
                     }
                     else {
                         right_neighbors.push(None);
+                        all_same = all_same && (right_neighbors[0] == None);
                     }
                 }
             }
@@ -705,7 +715,7 @@ impl EmptyVolume {
     // MARK: To Quads
     pub fn to_quads(&self) -> Vec<Quad> {
         let mut quads = vec![];
-        let float_pos = Vector3 {x: self.position.x as f32, y: self.position.y as f32, z: self.position.z as f32};
+        let float_pos = Vector3 {x: (self.tree_offset.x * self.tree_size + self.position.x) as f32, y: (self.tree_offset.y * self.tree_size + self.position.y) as f32, z: (self.tree_offset.z * self.tree_size + self.position.z) as f32};
         //bottom sides of the volumes, top side of the block
         for x in 0..self.size_x {
             for y in 0..self.size_y {
@@ -890,6 +900,182 @@ impl EmptyVolume {
         }
         out_index
     }
+
+    pub fn combine_results(first: &Rc<RefCell<OctTree<Cube>>>,first_neighbors: &Rc<OctTree<Rc<RefCell<EmptyVolume>>>>, second: &Rc<RefCell<OctTree<Cube>>>, second_neighbors: &Rc<OctTree<Rc<RefCell<EmptyVolume>>>>, facing: vertex::Facing) {
+        let mut first_start;
+        let mut second_start;
+
+        let step_one;
+        let step_two;
+
+        match facing {
+            vertex::Facing::Back => {
+                first_start = Vector3{x: 0, y: first.borrow().size - 1, z: 0};
+                second_start = Vector3{x: 0, y: 0, z: 0};
+
+                step_one = Vector3{x: 1, y: 0, z: 0};
+                step_two = Vector3{x: 0, y: 0, z: 1};
+            },
+            vertex::Facing::Front => {
+                first_start = Vector3{x: 0, y: 0, z: 0};
+                second_start = Vector3{x: 0, y: first.borrow().size - 1, z: 0};
+    
+                step_one = Vector3{x: 1, y: 0, z: 0};
+                step_two = Vector3{x: 0, y: 0, z: 1};
+            },
+            vertex::Facing::Top => {
+                first_start = Vector3{x: 0, y: 0, z: first.borrow().size - 1};
+                second_start = Vector3{x: 0, y: 0, z: 0};
+    
+                step_one = Vector3{x: 1, y: 0, z: 0};
+                step_two = Vector3{x: 0, y: 1, z: 0};
+            },
+            vertex::Facing::Bottom => {
+                first_start = Vector3{x: 0, y: 0, z: 0};
+                second_start = Vector3{x: 0, y: 0, z: first.borrow().size - 1};
+    
+                step_one = Vector3{x: 1, y: 0, z: 0};
+                step_two = Vector3{x: 0, y: 1, z: 0};
+            },
+            vertex::Facing::Left => {
+                first_start = Vector3{x: 0, y: 0, z: 0};
+                second_start = Vector3{x: first.borrow().size - 1, y: 0, z: 0};
+    
+                step_one = Vector3{x: 0, y: 1, z: 0};
+                step_two = Vector3{x: 0, y: 0, z: 1};
+            },
+            vertex::Facing::Right => {
+                first_start = Vector3{x: first.borrow().size - 1, y: 0, z: 0};
+                second_start = Vector3{x: 0, y: 0, z: 0};
+    
+                step_one = Vector3{x: 0, y: 1, z: 0};
+                step_two = Vector3{x: 0, y: 0, z: 1};
+            }
+        }
+
+        let mut done_volumes = vec![];
+
+        for u in 0..first.borrow().size {
+            for v in 0..first.borrow().size {
+                let first_pos = first_start + v * step_two + u * step_one;
+                let second_pos = second_start + v * step_two + u * step_one;
+                let volume_option = first_neighbors.get_element(first_pos.x, first_pos.y, first_pos.z);
+                if let Some(volume) = volume_option {
+                    if !done_volumes.contains(&volume) {
+                        
+                        let mask = Vector3 {x: 1, y: 1, z: 1} - (step_one + step_two);
+                        let negated_mask = (step_one + step_two);
+
+                        let volume_start_first = negated_mask.mul_element_wise(volume.borrow().position) + first_pos.mul_element_wise(mask);
+                        let volume_start_second = negated_mask.mul_element_wise(volume.borrow().position) + second_pos.mul_element_wise(mask);
+
+                        let size_u;
+                        let size_v;
+                        if negated_mask.x == 1 {
+                            size_u = volume.borrow().size_x;
+                            if negated_mask.y == 1 {
+                                size_v = volume.borrow().size_y;
+                            } else {
+                                size_v = volume.borrow().size_z;
+                            }
+                        } else {
+                            size_u = volume.borrow().size_y;
+                            size_v = volume.borrow().size_z;
+                        }
+
+                        let mut new_colors = vec![];
+                        let mut new_roughness = vec![];
+                        let mut new_neighbors = vec![];
+                        let mut color_elements = 0;
+                        let mut neighbor_elements = 0;
+                        let mut all_same = true;
+                        for volume_u in 0..size_u {
+                            for volume_v in 0..size_v {
+                                let pos = second_pos + volume_u * step_one + volume_v * step_two;
+                                let new_neighbor = second_neighbors.get_element(pos.x, pos.y, pos.z);
+                                let new_cube = second.borrow().get_element(pos.x, pos.y, pos.z);
+
+                                if let Some(c) = new_cube {
+                                    let u8_color = Vector3 {x: (c.color * 255.0).x.min(255.0).max(0.0) as u8, y: (c.color * 255.0).y.min(255.0).max(0.0) as u8, z: (c.color * 255.0).z.min(255.0).max(0.0) as u8};
+                                    new_colors.push(u8_color);
+                                    new_roughness.push(c.roughness);
+                                    color_elements += 1;
+                                } else {
+                                    new_colors.push(Vector3 { x: 0, y: 0, z: 0 });
+                                    new_roughness.push(0);
+                                }
+
+                                if let Some(n) = new_neighbor {
+                                    neighbor_elements += 1;
+                                    new_neighbors.push(Some(n.clone()));
+                                    all_same = all_same && (new_neighbors[0] == Some(n));
+                                } else {
+                                    new_neighbors.push(None);
+                                    all_same = all_same && (new_neighbors[0] == None);
+                                }
+                            } 
+                        }
+                        
+                        if color_elements > 0 {
+                            new_colors = new_colors;
+                            new_roughness = new_roughness;
+                        }
+                        else {
+                            new_colors= vec![];
+                            new_roughness = vec![];
+                        }
+
+                        if neighbor_elements > 0 {
+                            if all_same {
+                                new_neighbors = vec![new_neighbors[0].clone()];
+                            }
+                            else {
+                                new_neighbors = new_neighbors;
+                            }
+                        }
+                        else {
+                            new_neighbors = vec![None];
+                        }
+
+                        match facing {
+                            vertex::Facing::Back => {
+                                volume.borrow_mut().color_back = new_colors;
+                                volume.borrow_mut().roughness_back = new_roughness;
+                                volume.borrow_mut().neighbor_back = new_neighbors;
+                            },
+                            vertex::Facing::Front => {
+                                volume.borrow_mut().color_front = new_colors;
+                                volume.borrow_mut().roughness_front = new_roughness;
+                                volume.borrow_mut().neighbor_front = new_neighbors;
+                            },
+                            vertex::Facing::Top => {
+                                volume.borrow_mut().color_top = new_colors;
+                                volume.borrow_mut().roughness_top = new_roughness;
+                                volume.borrow_mut().neighbor_top = new_neighbors;
+                            },
+                            vertex::Facing::Bottom => {
+                                volume.borrow_mut().color_bottom = new_colors;
+                                volume.borrow_mut().roughness_bottom = new_roughness;
+                                volume.borrow_mut().neighbor_bottom = new_neighbors;
+                            },
+                            vertex::Facing::Left => {
+                                volume.borrow_mut().color_left = new_colors;
+                                volume.borrow_mut().roughness_left = new_roughness;
+                                volume.borrow_mut().neighbor_left = new_neighbors;
+                            },
+                            vertex::Facing::Right => {
+                                volume.borrow_mut().color_right = new_colors;
+                                volume.borrow_mut().roughness_right = new_roughness;
+                                volume.borrow_mut().neighbor_right = new_neighbors;
+                            },
+                        }
+                        
+                        done_volumes.push(volume);
+                    }
+                }
+            }
+        }
+    }
 }
 
 impl Memorizable for EmptyVolume {
@@ -923,11 +1109,11 @@ impl Memorizable for EmptyVolume {
     fn insert_into_memory(&self, mut v: Vec<u32>, data: &AppData, scene: &Scene) -> Vec<u32> {
         let mut mem_index = self.memory_start;
         //pos
-        v[mem_index] = self.position.x as u32;
+        v[mem_index] = (self.tree_offset.x * self.tree_size + self.position.x) as u32;
         mem_index += 1;
-        v[mem_index] = self.position.y as u32;
+        v[mem_index] = (self.tree_offset.y * self.tree_size + self.position.y) as u32;
         mem_index += 1;
-        v[mem_index] = self.position.z as u32;
+        v[mem_index] = (self.tree_offset.z * self.tree_size + self.position.z) as u32;
         mem_index += 1;
         //max sizes
         v[mem_index] = self.size_x as u32;
diff --git a/src/scene/generators.rs b/src/scene/generators.rs
new file mode 100644
index 0000000..71dffba
--- /dev/null
+++ b/src/scene/generators.rs
@@ -0,0 +1,119 @@
+use super::Scene;
+use super::oct_tree::{CHUNK_SIZE, OctTree};
+use crate::primitives::cube::Cube;
+use crate::primitives::rec_cuboid::Cuboid;
+use crate::primitives::drawable::Drawable;
+use crate::app_data::AppData;
+
+extern crate rand;
+use rand::Rng;
+
+use anyhow::Result;
+
+use cgmath::{vec2, vec3, Vector3};
+
+use std::cell::RefCell;
+use std::rc::Rc;
+
+use super::light::{DirectionalLight, PointLight};
+
+
+pub fn generate_test_scene(scene: &mut Scene, data: &mut AppData) -> Result<()> {
+    let mut rng = rand::thread_rng();
+        let grid_size = CHUNK_SIZE as i32;
+
+    let mut oct_tree1: OctTree<Cube> = OctTree::create(CHUNK_SIZE)?;
+    let mut oct_tree2: OctTree<Cube> = OctTree::create(CHUNK_SIZE)?;
+
+    for x_index in 0..grid_size {
+        for y_index in 0..grid_size {
+            let shade = (rng.gen_range(0..50) as f32) / 100.0;
+            let cube = Cube {
+                pos: vec3(x_index as f32, y_index as f32, 5.0),
+                color: vec3(shade, 1.0, shade),
+                tex_coord: vec2(0.0, 0.0),
+                transparent: false,
+                roughness: 255,
+            };
+
+            oct_tree1.set_cube(cube.clone());
+
+            let shade = (rng.gen_range(0..50) as f32) / 100.0;
+            let cube = Cube {
+                pos: vec3(x_index as f32, y_index as f32, 6.0),
+                color: vec3(shade, shade, 0.0),
+                tex_coord: vec2(0.0, 0.0),
+                transparent: false,
+                roughness: 255,
+            };
+
+            oct_tree2.set_cube(cube.clone());
+        }
+    }
+
+    let shade = (rng.gen_range(0..25) as f32) / 100.0;
+    let cube = Cube {
+        pos: vec3(10.0, 10.0, 10.0),
+        color: vec3(0.9, 0.9, 0.9),
+        tex_coord: vec2(0.0, 0.0),
+        transparent: true,
+        roughness: 32,
+    };
+    oct_tree1.set_cube(cube.clone());
+
+    let cube = Cube {
+        pos: vec3(10.0, 10.0, 9.0),
+        color: vec3(0.9, 0.9, 0.9),
+        tex_coord: vec2(0.0, 0.0),
+        transparent: true,
+        roughness: 32,
+    };
+    oct_tree1.set_cube(cube.clone());
+
+
+    let cube = Cube {
+        pos: vec3(10.0, 10.0, 10.0),
+        color: vec3(0.9, 0.9, 0.9),
+        tex_coord: vec2(0.0, 0.0),
+        transparent: true,
+        roughness: 32,
+    };
+    oct_tree2.set_cube(cube.clone());
+
+    let cube = Cube {
+        pos: vec3(10.0, 10.0, 9.0),
+        color: vec3(0.9, 0.9, 0.9),
+        tex_coord: vec2(0.0, 0.0),
+        transparent: true,
+        roughness: 32,
+    };
+    oct_tree2.set_cube(cube.clone());
+
+    scene.point_lights.push(Rc::new(RefCell::new(PointLight { pos: vec3(11.0, 11.0, 11.0), color: vec3(1.0, 1.0, 1.0), memory_start: 0 })));
+    scene.point_lights.push(Rc::new(RefCell::new(PointLight { pos: vec3(9.0, 9.0, 11.0), color: vec3(0.5, 0.5, 0.5), memory_start: 0 })));
+    scene.directional_lights.push(Rc::new(RefCell::new(DirectionalLight { direction: vec3(1.0, 1.0, -1.0), color: vec3(0.1, 0.1, 0.1), memory_start: 0 })));
+
+    let cube = Cuboid {
+        pos: vec3(11.0, 11.0, 11.0),
+        color: vec3(1.0, 1.0, 1.0),
+        tex_coord: vec2(0.0, 0.0),
+        size: Vector3 {x: 0.5, y: 0.5, z: 0.5}
+    };
+    let index = scene.sized_vertices.len();
+    cube.draw(&data.topology, index, scene);
+
+    let cube = Cuboid {
+        pos: vec3(9.0, 9.0, 11.0),
+        color: vec3(1.0, 1.0, 1.0),
+        tex_coord: vec2(0.0, 0.0),
+        size: Vector3 {x: 0.5, y: 0.5, z: 0.5}
+    };
+    let index = scene.sized_vertices.len();
+    cube.draw(&data.topology, index, scene);
+
+    let tree_ref_one = Rc::new(RefCell::new(oct_tree1));
+    let tree_ref_two = Rc::new(RefCell::new(oct_tree2));
+    scene.oct_trees = vec![vec![vec![tree_ref_one.clone(), tree_ref_two.clone()]]];
+
+    Ok(())
+}
\ No newline at end of file
diff --git a/src/scene/mod.rs b/src/scene/mod.rs
index e9d19e7..5ae9501 100644
--- a/src/scene/mod.rs
+++ b/src/scene/mod.rs
@@ -2,9 +2,10 @@ mod oct_tree;
 mod empty_volume;
 mod light;
 mod memorizable;
+pub mod generators;
 
 use anyhow::Ok;
-use light::{DirectionalLight, LightSource};
+use light::{DirectionalLight, LightSource, PointLight};
 use vulkanalia::prelude::v1_0::*;
 use anyhow::Result;
 
@@ -22,7 +23,6 @@ use crate::primitives::cube::Cube;
 use crate::primitives::drawable::Drawable;
 use crate::scene::oct_tree::{OctTree, OctTreeIter, CHUNK_SIZE};
 use crate::scene::empty_volume::EmptyVolume;
-use crate::scene::light::PointLight;
 
 extern crate rand;
 use rand::Rng;
@@ -57,102 +57,60 @@ pub struct Scene {
 
     pub rt_memory: Vec<u32>,
 
+    pub oct_trees: Vec<Vec<Vec<Rc<RefCell<OctTree<Cube>>>>>>,
+
     point_lights: Vec<Rc<RefCell<PointLight>>>,
     directional_lights: Vec<Rc<RefCell<DirectionalLight>>>,
 }
 
 impl Scene {
     pub unsafe fn prepare_data(&mut self, instance: &vulkanalia::Instance, device: &vulkanalia::Device, data: &mut AppData) -> Result<()> {
-        let mut rng = rand::thread_rng();
-        let grid_size = CHUNK_SIZE as i32;
+        // todo store the chunks somewhere (or only use them as intermediary for neighbourhood calculation idc)
 
-        // todo store the chunks somewhere (or only use them as intermediary for neighbouthood calculation idc)
-        let mut oct_tree: OctTree<Cube> = OctTree::create(CHUNK_SIZE)?;
+        let mut empty_volumes: Vec<Rc<RefCell<EmptyVolume>>> = vec![];
 
-        for x_index in 0..grid_size {
-            for y_index in 0..grid_size {
-                let shade = (rng.gen_range(0..50) as f32) / 100.0;
-                let cube = Cube {
-                    pos: vec3(x_index as f32, y_index as f32, 5.0),
-                    color: vec3(shade, 1.0, shade),
-                    tex_coord: vec2(0.0, 0.0),
-                    transparent: false,
-                    roughness: 0,
-                };
+        let mut neighbor_trees: Vec<Vec<Vec<Rc<OctTree<Rc<RefCell<EmptyVolume>>>>>>> = vec![];
 
-                oct_tree.set_cube(cube.clone());
-            }
-        }
+        let mut x_index = 0;
+        let mut y_index = 0;
+        let mut z_index = 0;
+        for oct_tree_plane_xy in &self.oct_trees {
+            neighbor_trees.push(vec![]);
+            for oct_tree_line_y in oct_tree_plane_xy {
+                neighbor_trees[z_index].push(vec![]);
+                for oct_tree in oct_tree_line_y {
+                    let mut new_volumes: Vec<Rc<RefCell<EmptyVolume>>>;
+                    let new_neighbors;
+                    (new_volumes, new_neighbors) = EmptyVolume::from_oct_tree(oct_tree, Vector3 { x: x_index, y: y_index, z: z_index });
+                    empty_volumes.append(&mut new_volumes);
 
-        let shade = (rng.gen_range(0..25) as f32) / 100.0;
-        let cube = Cube {
-            pos: vec3(10.0, 10.0, 10.0),
-            color: vec3(1.0, 0.0, 0.0),
-            tex_coord: vec2(0.0, 0.0),
-            transparent: true,
-            roughness: 32,
-        };
-        oct_tree.set_cube(cube.clone());
+                    neighbor_trees[z_index][y_index].push(Rc::new(new_neighbors));
 
-        let cube = Cube {
-            pos: vec3(10.0, 10.0, 9.0),
-            color: vec3(1.0, 0.0, 0.0),
-            tex_coord: vec2(0.0, 0.0),
-            transparent: true,
-            roughness: 32,
-        };
-        oct_tree.set_cube(cube.clone());
-
-        self.point_lights.push(Rc::new(RefCell::new(PointLight { pos: vec3(11.0, 11.0, 11.0), color: vec3(1.0, 1.0, 1.0), memory_start: 0 })));
-        self.point_lights.push(Rc::new(RefCell::new(PointLight { pos: vec3(9.0, 9.0, 11.0), color: vec3(0.5, 0.5, 0.5), memory_start: 0 })));
-        self.directional_lights.push(Rc::new(RefCell::new(DirectionalLight { direction: vec3(1.0, 1.0, -1.0), color: vec3(0.1, 0.1, 0.1), memory_start: 0 })));
-
-        let empty_volumes: Vec<Rc<RefCell<EmptyVolume>>>;
-        (empty_volumes, _) = EmptyVolume::from_oct_tree(&oct_tree);
-        println!("number of empty volumes is {}", empty_volumes.len());
-
-        let oct_tree_iter = OctTreeIter::create(&oct_tree)?;
-        for item in  oct_tree_iter {
-            let sized_index = self.sized_vertices.len();
-            let index = self.vertices.len();
-            match item {
-                Some(cube) => {
-                    /*if (cube.pos.x + cube.pos.y) as usize % 2 == 0{
-                        /**/
-                        let cuboid = Cuboid {
-                            pos: cube.pos,
-                            color: cube.color,
-                            tex_coord: cube.tex_coord,
-                            size: Vector3 {x: 1.0, y: 1.0, z: 1.0},
-                        };
-                        cuboid.draw(&data.topology, sized_index, self);
-                    }
-                    else {
-                        cube.draw(&data.topology, index, self);
-                    }*/
-                    //cube.draw(&data.topology, index, self);
+                    x_index += 1;
                 }
-                None => {}
+                y_index += 1;
             }
+            z_index += 1;
         }
+        let mut x_index = 0;
+        let mut y_index = 0;
+        let mut z_index = 0;
+        for oct_tree_plane_xy in &self.oct_trees {
+            for oct_tree_line_x in oct_tree_plane_xy {
+                for oct_tree in oct_tree_line_x {
+                    
+                    if oct_tree_line_x.len() > x_index + 1 {
+                        EmptyVolume::combine_results(oct_tree, &neighbor_trees[z_index][y_index][x_index], &oct_tree_line_x[x_index + 1], &neighbor_trees[z_index][y_index][x_index + 1], vertex::Facing::Right);
+                        EmptyVolume::combine_results(&oct_tree_line_x[x_index + 1], &neighbor_trees[z_index][y_index][x_index + 1], oct_tree, &neighbor_trees[z_index][y_index][x_index], vertex::Facing::Left);
+                    }
 
-        let cube = Cuboid {
-            pos: vec3(11.0, 11.0, 11.0),
-            color: vec3(1.0, 1.0, 1.0),
-            tex_coord: vec2(0.0, 0.0),
-            size: Vector3 {x: 0.5, y: 0.5, z: 0.5}
-        };
-        let index = self.sized_vertices.len();
-        cube.draw(&data.topology, index, self);
-
-        let cube = Cuboid {
-            pos: vec3(9.0, 9.0, 11.0),
-            color: vec3(1.0, 1.0, 1.0),
-            tex_coord: vec2(0.0, 0.0),
-            size: Vector3 {x: 0.5, y: 0.5, z: 0.5}
-        };
-        let index = self.sized_vertices.len();
-        cube.draw(&data.topology, index, self);
+                    x_index += 1;
+                }
+                y_index += 1;
+            }
+            z_index += 1;
+        }
+        println!("number of empty volumes is {}", empty_volumes.len());
         
         let mut memory_index = 6; 
         // 0 - location for the maximum number of lights referenced per chunk (also will be the invalid memory allocation for pointing to a nonexistant neighbor)
diff --git a/src/scene/oct_tree.rs b/src/scene/oct_tree.rs
index c9f94fa..f0e5da6 100644
--- a/src/scene/oct_tree.rs
+++ b/src/scene/oct_tree.rs
@@ -7,7 +7,7 @@ use crate::primitives::cube::Cube;
 
 extern crate rand;
 
-pub const CHUNK_SIZE_EXPONENT: u32 = 6;
+pub const CHUNK_SIZE_EXPONENT: u32 = 4;
 pub const CHUNK_SIZE: usize = (2 as usize).pow(CHUNK_SIZE_EXPONENT);
 pub const MAX_TREE_DEPTH: usize = CHUNK_SIZE_EXPONENT as usize - 2;
 pub const MIN_CHUNK_SIZE: usize = CHUNK_SIZE / (2 as usize).pow(MAX_TREE_DEPTH as u32);