Reorganised: renderer;

src/app.rs

@@ -1,7 +1,7 @@
 use std::collections::HashMap;
 // Credit of most code to https://sotrh.github.io/learn-wgpu/ since I'm not familiar with wgpu
-use crate::render::{ModelData, Renderer};
+use crate::render::{loader, Renderer};
-use crate::world::{World, ObjectData, OctreeDebug};
+use crate::world::{World, ObjectData};
 use glam::{Affine3, Affine3A, EulerRot, Mat4, Quat, Vec2, Vec3, Vec4};
 use std::sync::Arc;
 #[cfg(target_arch = "wasm32")]
@@ -17,7 +17,11 @@ use winit::{
     window::Window,
 };
 use crate::list::Id;
+use crate::render::instance::{Material, ModelData};
+use crate::render::instance::material::MaterialProperties;
+use crate::render::texture::Texture;
 use crate::state;
+use crate::world::debug::OctreeDebug;
 
 struct Controller {
     buttons: HashMap<MouseButton, bool>,
@@ -55,36 +59,31 @@ impl AppState {
             let mut world = state.worlds.make(World::new());
             state.renderer = Some(Renderer::new(&window).await?);
             let renderer = state.renderer.as_mut().unwrap();
-            let debug_file = renderer.load_from_gltf(include_bytes!("assets/debug.glb"));
+            let debug_file = loader::load_from_gltf(renderer,include_bytes!("assets/debug.glb"));
             let debug_model = debug_file.first_object().unwrap().model.unwrap();
             {
-                let file = renderer.load_from_gltf(include_bytes!("assets/sphere.glb"));
+                let file = loader::load_from_gltf(renderer,include_bytes!("assets/sphere.glb"));
                 let mut block = file.first_object().unwrap();
-                let skybox = renderer.load_texture_from_bytes(
+                let skybox = Texture::load_from_file_bytes(renderer,include_bytes!("assets/skybox2.png"), None);
-                    include_bytes!("assets/skybox2.png"),
+                renderer.set_skybox(skybox.unwrap());
-                    Some(image::ImageFormat::Png),
+                let color = Texture::load_from_file_bytes(renderer,include_bytes!("assets/plank/color.png"), None);
-                );
+                let normal = Texture::load_from_file_bytes(renderer,include_bytes!("assets/plank/normal.png"), None);
-                renderer.set_skybox(skybox);
+                let roughness = Texture::load_from_file_bytes(renderer,include_bytes!("assets/plank/roughness.png"), None);
-                let color = renderer.load_texture_from_bytes(include_bytes!("assets/plank/color.png"), None);
+                let mat = Material::new(renderer, &color.unwrap(), &normal.unwrap(), &roughness.unwrap(), MaterialProperties::default());
-                let normal = renderer.load_texture_from_bytes(include_bytes!("assets/plank/normal.png"), None);
-                let roughness = renderer.load_texture_from_bytes(include_bytes!("assets/plank/roughness.png"), None);
-                let mat = renderer.new_material(&color, &normal, &roughness);
                 block.model.as_mut().unwrap().material = mat;
                 for x in -BLOCKS..=BLOCKS {
                     for y in -BLOCKS..=BLOCKS {
                         let id = world.add_object(state.objects.make(block.clone()));
                         let block = state.objects.get(&id);
-                        {
+                        block.set_affine(Affine3::from_translation(
-                            block.affine = Affine3::from_translation(
+                            Vec3::new(-x as f32 * 3.0, -2.0, -y as f32 * 3.0)
-                                Vec3::new(-x as f32 * 3.0, -2.0, -y as f32 * 3.0),
+                        ));
-                            );
+                        block.model.as_mut().unwrap().instance.color = Vec4::new(
-                            block.model.as_mut().unwrap().instance.color = Vec4::new(
+                            0.3,
-                                0.3,
+                            (x + BLOCKS) as f32 / BLOCKS as f32,
-                                (x + BLOCKS) as f32 / BLOCKS as f32,
+                            (y + BLOCKS) as f32 / BLOCKS as f32,
-                                (y + BLOCKS) as f32 / BLOCKS as f32,
+                            1.0,
-                                1.0,
+                        );
-                            );
-                        }
                     }
                 }
             }

src/lib.rs

@@ -1,7 +1,23 @@
 #![recursion_limit = "256"]
+
+use std::error::Error;
+use std::fmt::{Display, Formatter};
+
 pub mod app;
 pub mod render;
 pub mod web;
 pub mod world;
 pub mod list;
-pub mod state;
+pub mod state;
+pub mod net;
+
+#[derive(Debug)]
+struct PoolError(String);
+
+impl Display for PoolError {
+  fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+    write!(f, "{}", self.0)
+  }
+}
+
+impl Error for PoolError {}

src/main.rs

@@ -1,6 +1,6 @@
 #![recursion_limit = "256"]
 
-use game::*;
+use pool::*;
 fn main() {
   app::run().unwrap();
 }

src/render/eye.rs

@@ -1,9 +1,10 @@
-use crate::render::{MaterialProperties, Texture};
+use crate::render::{Texture};
 use bytemuck::{Pod, Zeroable};
 use glam::camera::lh::proj::directx::perspective;
 use glam::{Affine3A, EulerRot, Mat3A, Mat4, Vec3, Vec4};
 use wgpu::util::DeviceExt;
 use wgpu::{Device, Queue};
+use crate::render::instance::material::MaterialProperties;
 
 pub(crate) struct Eye {
     pub(crate) frame: Affine3A,
@@ -16,6 +17,7 @@ pub(crate) struct Eye {
     pub(crate) camera_buffer: wgpu::Buffer,
     pub(crate) layout: wgpu::BindGroupLayout,
     pub(crate) group: wgpu::BindGroup,
+    pub sky_pipeline: wgpu::RenderPipeline,
 }
 
 #[repr(C)]
@@ -49,7 +51,7 @@ impl Eye {
             bytemuck::cast_slice(&[self.environment]),
         );
     }
-    pub(crate) fn new(device: &Device, width: u32, height: u32, skybox: Texture) -> Eye {
+    pub(crate) fn new(device: &Device, config: &wgpu::SurfaceConfiguration, width: u32, height: u32, skybox: Texture) -> Eye {
         let camera_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
             label: Some("Camera Buffer"),
             contents: bytemuck::cast_slice(&[
@@ -116,6 +118,51 @@ impl Eye {
             label: Some("eye_bind_group_layout"),
         });
 
+        let shader = device.create_shader_module(wgpu::include_wgsl!("sky.wgsl"));
+
+        let pipeline_layout = device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
+            label: Some("Render Pipeline Layout"),
+            bind_group_layouts: &[Some(&layout)],
+            immediate_size: 0,
+        });
+
+        //todo: use a pipeline cache!
+        let sky_pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
+            label: Some("Sky Pipeline"),
+            layout: Some(&pipeline_layout),
+            vertex: wgpu::VertexState {
+                module: &shader,
+                entry_point: Some("vs_sky"),
+                compilation_options: Default::default(),
+                buffers: &[],
+            },
+            fragment: Some(wgpu::FragmentState {
+                module: &shader,
+                entry_point: Some("fs_sky"),
+                compilation_options: Default::default(),
+                targets: &[Some(wgpu::ColorTargetState {
+                    // 4.
+                    format: config.format,
+                    blend: Some(wgpu::BlendState::REPLACE),
+                    write_mask: wgpu::ColorWrites::ALL,
+                })],
+            }),
+            primitive: wgpu::PrimitiveState {
+                front_face: wgpu::FrontFace::Cw,
+                ..Default::default()
+            },
+            depth_stencil: Some(wgpu::DepthStencilState {
+                format: wgpu::TextureFormat::Depth32Float,
+                depth_write_enabled: Some(false),
+                depth_compare: Some(wgpu::CompareFunction::LessEqual),
+                stencil: wgpu::StencilState::default(),
+                bias: wgpu::DepthBiasState::default(),
+            }),
+            multisample: wgpu::MultisampleState::default(),
+            multiview_mask: None,
+            cache: None,
+        });
+
         let group = Eye::bind_group(&layout, device, &camera_buffer, &environment_buffer, skybox);
 
         Eye {
@@ -129,6 +176,7 @@ impl Eye {
             layout,
             environment,
             environment_buffer,
+            sky_pipeline,
         }
     }
     fn bind_group(

src/render/instance/instance.wgsl

@@ -15,7 +15,6 @@ struct Eye {
     frame: mat4x4<f32>,
 }
 
-// Vertex shader
 @group(0) @binding(0)
 var<uniform> eye: Eye;
 @group(0) @binding(1)
@@ -143,32 +142,4 @@ fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
     let result = (diffuse_effect.xyz + specular_color.xyz);
 
     return vec4<f32>(result.xyz,object_color.a);
-}
+}
-
-struct SkyOutput {
-    @builtin(position) position: vec4<f32>,
-    @location(0) pos: vec4<f32> // unadulterated by WGSL
-}
-
-const TRI_VERTICES = array(
-    vec4(-1.0, -1.0, 1.0, 1.0),
-    vec4(-1.0,  1.0, 1.0, 1.0),
-    vec4( 1.0, -1.0, 1.0, 1.0),
-    vec4( 1.0,  1.0, 1.0, 1.0),
-    vec4(-1.0,  1.0, 1.0, 1.0),
-    vec4( 1.0, -1.0, 1.0, 1.0),
-);
-
-@vertex
-fn vs_sky(@builtin(vertex_index) index: u32) -> SkyOutput {
-    var out: SkyOutput;
-    out.position = TRI_VERTICES[index];
-    out.pos = out.position;
-    return out;
-}
-
-@fragment
-fn fs_sky(in: SkyOutput) -> @location(0) vec4<f32> {
-    let look = rotation(eye.frame) * in.pos.xyz;
-    return sky_aspect(look);
-}

src/render/instance/material.rs

@@ -0,0 +1,130 @@
+use wgpu::Device;
+use crate::list::{FreeList, Id};
+use crate::render::Renderer;
+use crate::render::texture::Texture;
+
+pub struct Materials {
+  pub(crate) layout: wgpu::BindGroupLayout,
+  pub(crate) list: FreeList<Material>,
+  default: Material,
+}
+
+impl Materials {
+  pub(crate) fn new(device: &Device, default: Texture) -> Materials {
+    fn texture_bind_group_layout_entry(binding: u32) -> wgpu::BindGroupLayoutEntry {
+      wgpu::BindGroupLayoutEntry {
+        binding,
+        visibility: wgpu::ShaderStages::FRAGMENT,
+        ty: wgpu::BindingType::Texture {
+          multisampled: false,
+          view_dimension: wgpu::TextureViewDimension::D2,
+          sample_type: wgpu::TextureSampleType::Float { filterable: true },
+        },
+        count: None,
+      }
+    }
+
+    let layout =
+      device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
+        entries: &[
+          wgpu::BindGroupLayoutEntry {
+            binding: 0,
+            visibility: wgpu::ShaderStages::FRAGMENT,
+            ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
+            count: None,
+          },
+          texture_bind_group_layout_entry(1),
+          texture_bind_group_layout_entry(2),
+          texture_bind_group_layout_entry(3),
+        ],
+        label: Some("texture_bind_group_layout"),
+      });
+
+    let default = Material::_new(
+      &device,
+      &layout,
+      &default,
+      &default,
+      &default,
+      MaterialProperties::default(),
+    );
+
+    Materials {
+      layout,
+      list: Default::default(),
+      default,
+    }
+  }
+}
+
+#[derive(Clone)]
+pub struct Material {
+  pub(crate) group: wgpu::BindGroup,
+}
+
+pub struct MaterialProperties {
+  pub(crate) edge: wgpu::AddressMode,
+  pub(crate) filter: wgpu::FilterMode,
+}
+
+impl Default for MaterialProperties {
+  fn default() -> MaterialProperties {
+    MaterialProperties {
+      edge: wgpu::AddressMode::Repeat,
+      filter: wgpu::FilterMode::Linear,
+    }
+  }
+}
+
+impl MaterialProperties {
+  pub(crate) fn sampler(&self, device: &wgpu::Device) -> wgpu::Sampler {
+    device.create_sampler(&wgpu::SamplerDescriptor {
+      address_mode_u: self.edge,
+      address_mode_v: self.edge,
+      address_mode_w: self.edge,
+      mag_filter: self.filter,
+      min_filter: self.filter,
+      mipmap_filter: wgpu::MipmapFilterMode::Nearest,
+      ..Default::default()
+    })
+  }
+}
+
+impl Material {
+  pub(crate) fn _new(
+    device: &wgpu::Device,
+    layout: &wgpu::BindGroupLayout,
+    base: &Texture,
+    normal: &Texture,
+    reflect: &Texture,
+    config: MaterialProperties,
+  ) -> Material {
+    let sampler = config.sampler(&device);
+    let group = device.create_bind_group(&wgpu::BindGroupDescriptor {
+      layout,
+      entries: &[
+        wgpu::BindGroupEntry {
+          binding: 0,
+          resource: wgpu::BindingResource::Sampler(&sampler),
+        },
+        wgpu::BindGroupEntry {
+          binding: 1,
+          resource: wgpu::BindingResource::TextureView(&base.view),
+        },
+        wgpu::BindGroupEntry {
+          binding: 2,
+          resource: wgpu::BindingResource::TextureView(&normal.view),
+        },
+        wgpu::BindGroupEntry {
+          binding: 3,
+          resource: wgpu::BindingResource::TextureView(&reflect.view),
+        },
+      ],
+      label: Some("diffuse_bind_group"),
+    });
+    Material { group }
+  }
+  pub fn new(renderer: &mut Renderer, base: &Texture, normal: &Texture, reflect: &Texture, config: MaterialProperties) -> Id<Material> {
+    renderer.instances.materials.list.make(Material::_new(&renderer.device, &renderer.instances.materials.layout, base, normal, reflect, config)).id
+  }
+}

src/render/instance/mod.rs

@@ -0,0 +1,376 @@
+pub mod material;
+
+use std::ops::Range;
+use bytemuck::{Pod, Zeroable};
+use glam::{Affine3, Mat4, Vec4};
+use wgpu::{BindGroup, Device};
+use wgpu::naga::FastHashMap;
+use crate::list::{FreeList, Id, RefId};
+use crate::render::{instance, Renderer};
+use crate::render::eye::Eye;
+pub(crate) use crate::render::instance::material::{Material, Materials};
+use crate::render::mesh::{Mesh, TangentVertex};
+use crate::render::texture::Texture;
+use crate::world::ObjectData;
+
+#[repr(C)]
+#[derive(Pod, Zeroable, Copy, Clone)]
+pub struct ModelInstance {
+  pub transform: Mat4,
+  pub color: Vec4,
+  pub lights: [u16; 16],
+  pub point_lights: u32,
+  pub spot_lights: u32,
+  pub metal: f32,
+  pub rough: f32,
+}
+
+#[repr(C)]
+#[derive(Pod, Copy, Clone, Zeroable)]
+pub struct LightInstance {
+  pub location: Vec4,
+  pub rotation: Vec4,
+  pub color: Vec4,
+}
+
+#[derive(Clone)]
+pub struct LightData {
+  pub instance: LightInstance,
+  pub transform: Affine3,
+}
+
+#[derive(Clone)]
+pub struct ModelData {
+  pub instance: ModelInstance,
+  pub material: Id<Material>,
+  pub mesh: Id<Mesh>,
+}
+
+pub struct Instances {
+  pub materials: Materials,
+  light_instances: FreeList<LightData>,
+  model_instances: FreeList<ModelData>,
+  pub(crate) pipeline: wgpu::RenderPipeline,
+  light_count: usize,
+  light_buffer: wgpu::Buffer,
+  model_count: usize,
+  pub(crate) model_buffer: wgpu::Buffer,
+  models_flag: bool,
+  pub(crate) program: Program,
+  models: FastHashMap<Id<Mesh>, FastHashMap<Id<Material>, FastHashMap<Id<ObjectData>,bool>>>,
+}
+
+pub enum Code {
+  Material(Material),
+  Mesh(Mesh),
+  Draw(Range<u32>),
+}
+
+pub struct Program(pub Vec<Code>);
+
+impl Program {
+  fn push(&mut self, item: Code) {
+    self.0.push(item)
+  }
+  fn new() -> Program {
+    Program(Vec::new())
+  }
+  pub(crate) fn render(self, pass: &mut wgpu::RenderPass) {
+    let mut count = 0;
+    let mut indexed = false;
+    for code in self.0 {
+      match code {
+        Code::Material(material) => pass.set_bind_group(
+          Renderer::SIMPLE_RENDER_TEXTURE_GROUP_POSITION,
+          &material.group,
+          &[],
+        ),
+        Code::Mesh(Mesh {vertices, indices, ..}) => {
+          pass.set_vertex_buffer(0, vertices.0.slice(..));
+          if let Some(indices) = indices {
+            pass.set_index_buffer(indices.0.slice(..), wgpu::IndexFormat::Uint32);
+            count = indices.1;
+            indexed = true;
+          } else {
+            count = vertices.1;
+            indexed = false;
+          }
+        }
+        Code::Draw(instances) => {
+          if indexed {
+            pass.draw_indexed(0..count, 0, instances)
+          } else {
+            pass.draw(0..count, instances);
+          }
+        }
+      }
+    }
+  }
+}
+
+impl Instances {
+  const MIN_SIZE: u64 = 64;
+  pub fn register_object(&mut self, mut object: RefId<ObjectData>) {
+    let model = object.model.as_mut().unwrap();
+    self.model_count += 1;
+    self.models
+      .entry(model.mesh.clone()).or_default()
+      .entry(model.material.clone()).or_default()
+      .insert(object.into(),self.models_flag);
+  }
+  /*pub fn register_light(&mut self, light: Id<LightData>) {
+      self.light_count += 1;
+      self.lights.insert(light);
+  }*/
+  pub fn reallocate_buffer(
+    device: &wgpu::Device,
+    buffer: &mut wgpu::Buffer,
+    count: usize,
+    item_size: usize,
+  ) {
+    let size = buffer.size() / item_size as wgpu::BufferAddress;
+    if count > Instances::MIN_SIZE as usize {
+      let mut reallocate: Option<usize> = None;
+      if count < (size / 2) as usize {
+        reallocate = Some(count / 2);
+      } else if count > size as usize {
+        reallocate = Some(count * 2);
+      }
+      if let Some(new_size) = reallocate {
+        *buffer = device.create_buffer(&wgpu::BufferDescriptor {
+          label: Some("Instance Buffer"),
+          size: (item_size * new_size) as wgpu::BufferAddress,
+          usage: wgpu::BufferUsages::COPY_DST | wgpu::BufferUsages::VERTEX,
+          mapped_at_creation: false,
+        });
+      }
+    }
+  }
+  /*pub fn write_lights(&mut self, device: &wgpu::Device, queue: &wgpu::Queue) {
+      //SimpleInstances::reallocate_buffer(device, queue, &mut self.light_ref_buffer, self.light_ref_last, size_of::<u32>());
+      /*
+      let mut light_ref_buffer = queue.write_buffer_with(
+          &self.light_ref_buffer,
+          0 as wgpu::BufferAddress,
+          wgpu::BufferSize::new(self.instance_buffer.size()).unwrap()
+        ).unwrap();
+       */
+      Instances::reallocate_buffer(
+          device,
+          &mut self.light_buffer,
+          self.light_count,
+          size_of::<WorldLight>(),
+      );
+      let mut buffer = queue
+          .write_buffer_with(
+              &self.light_buffer,
+              0 as wgpu::BufferAddress,
+              wgpu::BufferSize::new(self.light_buffer.size()).unwrap(),
+          )
+          .unwrap();
+      let stride = size_of::<WorldLight>();
+      for (new_index, (light, index)) in self.lights.iter_mut().enumerate() {
+          *index = new_index + 1;
+          let begin = *index * stride;
+          buffer
+              .slice(begin..begin + stride)
+              .copy_from_slice(bytemuck::cast_slice(&[light.0.borrow().instance]));
+      }
+  }*/
+  pub(crate) fn write_instances(
+    &mut self,
+    device: &wgpu::Device,
+    queue: &wgpu::Queue,
+    mesh_list: &mut FreeList<Mesh>,
+    objects_list: &mut FreeList<ObjectData>,
+  ) {
+    Instances::reallocate_buffer(
+      device,
+      &mut self.model_buffer,
+      self.model_count,
+      size_of::<ModelInstance>(),
+    );
+    let mut buffer = queue
+      .write_buffer_with(
+        &self.model_buffer,
+        0 as wgpu::BufferAddress,
+        wgpu::BufferSize::new(self.model_buffer.size()).unwrap(),
+      )
+      .unwrap();
+    let mut index: u32 = 0;
+    let stride = size_of::<ModelInstance>();
+    for (mesh, materials) in self.models.iter_mut() {
+      self.program.push(Code::Mesh(mesh_list.get(mesh).clone()));
+      for (material, objects) in materials.iter_mut() {
+        self.program.push(Code::Material(self.materials.list.get(material).clone()));
+        let before = index;
+        objects.retain(|object,flag| {
+          let object = objects_list.get(object);
+          if *flag == self.models_flag {
+            let begin = index as usize * stride;
+            buffer.slice(begin..begin + stride).copy_from_slice(bytemuck::cast_slice(&[object.model.as_mut().unwrap().instance]));
+            index += 1;
+            true
+          } else {
+            false
+          }
+        });
+        self.program.push(Code::Draw(before..index));
+      }
+    }
+    //println!("objects: {}",index);
+    self.models_flag = !self.models_flag;
+  }
+
+  pub(crate) fn desc() -> wgpu::VertexBufferLayout<'static> {
+    wgpu::VertexBufferLayout {
+      array_stride: size_of::<ModelInstance>() as wgpu::BufferAddress,
+      step_mode: wgpu::VertexStepMode::Instance,
+      attributes: &[
+        // todo: is this too big?
+        wgpu::VertexAttribute {
+          offset: 0,
+          shader_location: 4,
+          format: wgpu::VertexFormat::Float32x4,
+        },
+        wgpu::VertexAttribute {
+          offset: size_of::<[f32; 4]>() as wgpu::BufferAddress,
+          shader_location: 5,
+          format: wgpu::VertexFormat::Float32x4,
+        },
+        wgpu::VertexAttribute {
+          offset: size_of::<[f32; 8]>() as wgpu::BufferAddress,
+          shader_location: 6,
+          format: wgpu::VertexFormat::Float32x4,
+        },
+        wgpu::VertexAttribute {
+          offset: size_of::<[f32; 12]>() as wgpu::BufferAddress,
+          shader_location: 7,
+          format: wgpu::VertexFormat::Float32x4,
+        },
+        wgpu::VertexAttribute {
+          offset: size_of::<[f32; 16]>() as wgpu::BufferAddress,
+          shader_location: 8,
+          format: wgpu::VertexFormat::Float32x4,
+        },
+        wgpu::VertexAttribute {
+          offset: size_of::<[f32; 16]>() as wgpu::BufferAddress,
+          shader_location: 9,
+          format: wgpu::VertexFormat::Float32x4,
+        },
+        wgpu::VertexAttribute {
+          offset: size_of::<[f32; 16]>() as wgpu::BufferAddress,
+          shader_location: 10,
+          format: wgpu::VertexFormat::Float32x4,
+        },
+        wgpu::VertexAttribute {
+          offset: size_of::<[f32; 16]>() as wgpu::BufferAddress,
+          shader_location: 11,
+          format: wgpu::VertexFormat::Float32x4,
+        },
+      ],
+    }
+  }
+
+  pub fn new(device: &wgpu::Device, eye: &Eye, config: &wgpu::SurfaceConfiguration, default: Texture) -> Instances {
+    let instance_buffer = device.create_buffer(&wgpu::BufferDescriptor {
+      label: Some("Instance Buffer"),
+      size: (size_of::<ModelInstance>() * Instances::MIN_SIZE as usize)
+        as wgpu::BufferAddress,
+      usage: wgpu::BufferUsages::VERTEX | wgpu::BufferUsages::COPY_DST,
+      mapped_at_creation: false,
+    });
+
+    let light_buffer = device.create_buffer(&wgpu::BufferDescriptor {
+      label: Some("Light Buffer"),
+      size: (size_of::<LightInstance>() * Instances::MIN_SIZE as usize)
+        as wgpu::BufferAddress,
+      usage: wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST,
+      mapped_at_creation: false,
+    });
+
+    /*let light_ref_buffer = device.create_buffer(&wgpu::BufferDescriptor {
+        label: Some("Light Ref Buffer"),
+        size: (size_of::<u32>() * SimpleInstances::MIN_SIZE as usize) as wgpu::BufferAddress,
+        usage: wgpu::BufferUsages::STORAGE | wgpu::BufferUsages::COPY_DST,
+        mapped_at_creation: false,
+    });*/
+
+    let materials = Materials::new(device, default);
+
+    let shader = device.create_shader_module(wgpu::include_wgsl!("instance.wgsl"));
+
+    let pipeline_layout = device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
+      label: Some("Render Pipeline Layout"),
+      bind_group_layouts: &[Some(&eye.layout), Some(&materials.layout)],
+      immediate_size: 0,
+    });
+
+    let instance_pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
+      label: Some("Render Pipeline"),
+      layout: Some(&pipeline_layout),
+      vertex: wgpu::VertexState {
+        module: &shader,
+        entry_point: Some("vs_main"),
+        buffers: &[TangentVertex::desc(), Instances::desc()],
+        compilation_options: wgpu::PipelineCompilationOptions::default(),
+      },
+      fragment: Some(wgpu::FragmentState {
+        // 3.
+        module: &shader,
+        entry_point: Some("fs_main"),
+        targets: &[Some(wgpu::ColorTargetState {
+          // 4.
+          format: config.format,
+          blend: Some(wgpu::BlendState::REPLACE),
+          write_mask: wgpu::ColorWrites::ALL,
+        })],
+        compilation_options: wgpu::PipelineCompilationOptions::default(),
+      }),
+      primitive: Default::default(), /*wgpu::PrimitiveState {
+                                               topology: wgpu::PrimitiveTopology::TriangleList,
+                                               strip_index_format: None,
+                                               front_face: wgpu::FrontFace::Ccw,
+                                               cull_mode: None,
+                                               polygon_mode: wgpu::PolygonMode::Fill,
+                                               unclipped_depth: false,
+                                               conservative: false,
+                                           }*/
+      depth_stencil: Some(wgpu::DepthStencilState {
+        stencil: wgpu::StencilState::default(),
+        format: wgpu::TextureFormat::Depth32Float,
+        depth_write_enabled: Some(true),
+        depth_compare: Some(wgpu::CompareFunction::Less),
+        bias: wgpu::DepthBiasState::default(),
+      }),
+      multisample: wgpu::MultisampleState {
+        count: 1,
+        mask: !0,
+        alpha_to_coverage_enabled: false,
+      },
+      multiview_mask: None,
+      cache: None,
+    });
+
+    Instances {
+      materials,
+      light_instances: Default::default(),
+      model_instances: Default::default(),
+      pipeline: instance_pipeline,
+      light_count: 0,
+      //light_ref_last: 0,
+      model_count: 0,
+      light_buffer,
+      model_buffer: instance_buffer,
+      //light_ref_buffer,
+      //lights: Default::default(),
+      models_flag: false,
+      program: Program(Vec::new()),
+      models: Default::default(),
+    }
+  }
+  
+  pub fn render() {
+    
+  }
+}

src/render/loader.rs

@@ -0,0 +1,302 @@
+use std::collections::HashMap;
+use glam::{Mat4, Vec3, Vec4};
+use gltf::Semantic;
+use wgpu::{Device, Queue};
+use wgpu::util::DeviceExt;
+use crate::list::{FreeList, Id, RefId};
+use crate::render::instance::{Material, Materials, ModelData, ModelInstance};
+use crate::render::instance::material::MaterialProperties;
+use crate::render::mesh::{Mesh, TangentVertex};
+use crate::render::texture::{Texture, TextureProperties};
+use crate::render::{Renderer, Textures};
+use crate::world::{ObjectData, AABB, ColliderData, Shape};
+
+pub struct TreeNode {
+  object: Option<ObjectData>,
+  children: Vec<TreeNode>,
+  name: String,
+}
+
+impl TreeNode {
+  pub fn first_object(&self) -> Option<ObjectData> {
+    if let Some(object) = self.object.clone() {
+      Some(object)
+    } else {
+      for child in self.children.iter() {
+        if let Some(object) = child.first_object() {
+          return Some(object);
+        }
+      }
+      None
+    }
+  }
+}
+
+type GltfVertexBufferKey = (Option<usize>, Option<usize>, Option<usize>, Option<usize>);
+
+pub fn new_texture_from_gltf(
+  device: &Device,
+  queue: &Queue,
+  info: &gltf::texture::Texture,
+  images: &Vec<gltf::image::Data>,
+) -> Option<Texture> {
+  if let Some(image) = images.get(info.source().index()) {
+    let mut new_pixels = Vec::new();
+    let pixels: &Vec<u8>;
+    match image.format {
+      gltf::image::Format::R8G8B8 => {
+        for pixel in image.pixels.chunks(3) {
+          new_pixels.push(pixel[0]);
+          new_pixels.push(pixel[0]);
+          new_pixels.push(pixel[0]);
+          new_pixels.push(255);
+        }
+        pixels = &new_pixels;
+      }
+      gltf::image::Format::R8G8B8A8 => pixels = &image.pixels,
+      _ => return None,
+    }
+    Some(Texture::load(
+      device,
+      queue,
+      pixels.as_slice(),
+      TextureProperties {
+        width: image.width,
+        height: image.height,
+      },
+    ))
+  } else {
+    None
+  }
+}
+pub fn new_mesh_from_gltf(
+  device: &Device,
+  primitive: gltf::Primitive,
+  meshes: &mut HashMap<GltfVertexBufferKey, Mesh>,
+  buffers: &[gltf::buffer::Data],
+) -> Mesh {
+  let position_index = primitive
+    .get(&Semantic::Positions)
+    .and_then(|it| it.view()).map(|it| it.buffer().index());
+  let normals_index = primitive
+    .get(&Semantic::Normals)
+    .and_then(|it| it.view()).map(|it| it.buffer().index());
+  let tex_coords_index = primitive
+    .get(&Semantic::TexCoords(0))
+    .and_then(|it| it.view()).map(|it| it.buffer().index());
+  let indices_index = primitive
+    .indices()
+    .and_then(|it| it.view()).map(|it| it.buffer().index());
+  let tangent_index = primitive
+    .get(&Semantic::Tangents)
+    .and_then(|it| it.view()).map(|it| it.buffer().index());
+  let key = (
+    position_index,
+    normals_index,
+    tex_coords_index,
+    indices_index,
+  );
+  let insert = || {
+    let mut tangents = false;
+    let reader = primitive.reader(|buffer| Some(&buffers[buffer.index()]));
+    let mut vertex_data: Vec<TangentVertex>;
+    let mut aabb = AABB(Vec3::ZERO,Vec3::ZERO);
+    if let Some(positions) = reader.read_positions() {
+      vertex_data = Vec::with_capacity(positions.len());
+      let mut normal = reader.read_normals().map(|it| it.into_iter());
+      let mut tex_coord = reader
+        .read_tex_coords(0)
+        .map(|it| it.into_f32().into_iter());
+      let mut tangent = reader.read_tangents().map(|it| it.into_iter());
+      tangents = tangent.is_some();
+      for position in positions {
+        aabb = aabb.extend_to(Vec3::from(position));
+        vertex_data.push(TangentVertex {
+          position,
+          normal: if let Some(ref mut normals) = normal {
+            if let Some(normal) = normals.next() {
+              normal
+            } else {
+              [0.0; 3]
+            }
+          } else {
+            [0.0; 3]
+          },
+          tex_coord: if let Some(ref mut tex_coords) = tex_coord {
+            tex_coords.next()
+          } else {
+            None
+          }
+            .unwrap_or([0.0; 2]),
+          tangent: [0.0; 3], // todo: tangent from model
+          bitangent: [0.0; 3],
+        })
+      }
+    } else {
+      vertex_data = Vec::new();
+    }
+    let vertex_buffer =
+      device
+        .create_buffer_init(&wgpu::util::BufferInitDescriptor {
+          label: Some("Vertex Buffer"),
+          contents: bytemuck::cast_slice(vertex_data.as_slice()),
+          usage: wgpu::BufferUsages::VERTEX,
+        });
+    let vertices_result = (vertex_buffer, vertex_data.len() as u32);
+    let indices_result = if let Some(indices) = reader.read_indices() {
+      let index_data: Vec<u32> = indices.into_u32().collect();
+      Some((
+        device
+          .create_buffer_init(&wgpu::util::BufferInitDescriptor {
+            label: Some("Index Buffer"),
+            contents: bytemuck::cast_slice(index_data.as_slice()),
+            usage: wgpu::BufferUsages::INDEX,
+          }),
+        index_data.len() as u32,
+      ))
+    } else {
+      None
+    };
+    Mesh {
+      indices: indices_result,
+      vertices: vertices_result,
+      aabb,
+    }
+  };
+  meshes.entry(key).or_insert_with(insert).clone()
+}
+
+pub fn load_node_from_gltf(
+  node: gltf::Node,
+  device: &Device,
+  queue: &Queue,
+  mesh_map: &mut HashMap<GltfVertexBufferKey, Mesh>,
+  texture_map: &mut HashMap<usize, Texture>,
+  materials: &mut Materials,
+  textures: &Textures,
+  meshes: &mut FreeList<Mesh>,
+  images: &Vec<gltf::image::Data>,
+  buffers: &Vec<gltf::buffer::Data>,
+) -> TreeNode {
+  let mut tree_node = TreeNode {
+    object: None,
+    children: Vec::new(),
+    name: node.name().unwrap_or("Node").to_string(),
+  };
+  if let Some(mesh) = node.mesh() {
+    let len = mesh.primitives().len();
+    for primitive in mesh.primitives() {
+      let pbr = primitive.material().pbr_metallic_roughness();
+      let material = primitive.material();
+      let color = pbr.base_color_factor();
+      let metal = pbr.metallic_factor();
+      let rough = pbr.roughness_factor();
+      let light = primitive.material().emissive_factor();
+      let base = match pbr.base_color_texture() {
+        Some(info) => texture_map
+          .entry(info.texture().source().index())
+          .or_insert_with(|| new_texture_from_gltf(device,queue,&info.texture(), &images).unwrap_or_else(|| textures.default.clone()))
+          .clone(),
+        None => textures.default.clone(),
+      };
+      let reflect = match pbr.metallic_roughness_texture() {
+        Some(info) => texture_map
+          .entry(info.texture().source().index())
+          .or_insert_with(|| new_texture_from_gltf(device,queue,&info.texture(), &images).unwrap_or_else(|| textures.default.clone()))
+          .clone(),
+        None => textures.default.clone(),
+      };
+      let normal = match material.normal_texture() {
+        Some(info) => texture_map
+          .entry(info.texture().source().index())
+          .or_insert_with(|| new_texture_from_gltf(device,queue,&info.texture(), &images).unwrap_or_else(|| textures.default.clone()))
+          .clone(),
+        None => textures.default.clone(),
+      };
+      let material = materials.list.make(Material::_new(
+        &device,
+        &materials.layout,
+        &base,
+        &normal,
+        &reflect,
+        MaterialProperties {
+          edge: wgpu::AddressMode::Repeat,
+          filter: wgpu::FilterMode::Linear,
+        },
+      )).into();;
+      let mesh = new_mesh_from_gltf(device, primitive, mesh_map, buffers);
+      let aabb = mesh.aabb;
+      let object = ObjectData {
+        model: Some(ModelData {
+          instance: ModelInstance {
+            transform: Mat4::default(),
+            color: Vec4::from_array(color),
+            lights: [0; 16],
+            point_lights: 0,
+            spot_lights: 0,
+            metal,
+            rough,
+          },
+          material,
+          mesh: meshes.make(mesh).id,
+        }),
+        collider: ColliderData { shape: Shape::Sphere(aabb.1.distance(aabb.0)) },
+        affine: Default::default(),
+        asleep: false,
+      };
+      if len == 1 {
+        tree_node.object = Some(object);
+      } else {
+        tree_node.children.push(TreeNode {
+          object: Some(object),
+          children: Vec::new(),
+          name: "Primitive".to_string(),
+        })
+      }
+    }
+  }
+  for node in node.children() {
+    tree_node
+      .children
+      .push(load_node_from_gltf(node, device, queue, mesh_map, texture_map, materials, textures, meshes, images, buffers));
+  }
+  tree_node
+}
+pub fn _load_from_gltf(device: &Device, queue: &Queue, meshes: &mut FreeList<Mesh>, materials: &mut Materials, textures: &mut Textures, slice: impl AsRef<[u8]>) -> TreeNode {
+  let mut root = TreeNode {
+    object: None,
+    children: Vec::new(),
+    name: "Root".to_string(),
+  };
+  if let Ok((document, buffers, images)) = gltf::import_slice(slice) {
+    let mut mesh_map: HashMap<GltfVertexBufferKey, Mesh> = HashMap::new();
+    let mut texture_map: HashMap<usize, Texture> = HashMap::new();
+    for scene in document.scenes() {
+      let mut scene_node = TreeNode {
+        object: None,
+        children: Vec::new(),
+        name: scene.name().unwrap_or("Scene").to_string(),
+      };
+      for node in scene.nodes() {
+        scene_node.children.push(load_node_from_gltf(
+          node,
+          device,
+          queue,
+          &mut mesh_map,
+          &mut texture_map,
+          materials,
+          textures,
+          meshes,
+          &images,
+          &buffers,
+        ));
+      }
+      root.children.push(scene_node)
+    }
+  }
+  root
+}
+
+pub fn load_from_gltf(renderer: &mut Renderer, slice: impl AsRef<[u8]>) -> TreeNode {
+  _load_from_gltf(&renderer.device, &renderer.queue, &mut renderer.meshes, &mut renderer.instances.materials, &mut renderer.textures, slice)
+}

src/render/mesh.rs

@@ -0,0 +1,51 @@
+use crate::world::AABB;
+
+#[repr(C)]
+#[derive(Copy, Clone, Debug, bytemuck::Pod, bytemuck::Zeroable)]
+pub struct TangentVertex {
+  pub(crate) position: [f32; 3],
+  pub(crate) normal: [f32; 3],
+  pub(crate) tex_coord: [f32; 2],
+  pub(crate) tangent: [f32; 3],
+  pub(crate) bitangent: [f32; 3],
+}
+
+#[repr(C)]
+#[derive(Copy, Clone, Debug, bytemuck::Pod, bytemuck::Zeroable)]
+pub struct Vertex {
+  position: [f32; 3],
+  normal: [f32; 3],
+  tex_coord: [f32; 3],
+}
+
+impl TangentVertex {
+  pub(crate) fn desc() -> wgpu::VertexBufferLayout<'static> {
+    wgpu::VertexBufferLayout {
+      array_stride: size_of::<TangentVertex>() as wgpu::BufferAddress,
+      step_mode: wgpu::VertexStepMode::Vertex,
+      attributes: &[
+        wgpu::VertexAttribute {
+          offset: 0,
+          shader_location: 0,
+          format: wgpu::VertexFormat::Float32x3,
+        },
+        wgpu::VertexAttribute {
+          offset: size_of::<[f32; 3]>() as wgpu::BufferAddress,
+          shader_location: 1,
+          format: wgpu::VertexFormat::Float32x3,
+        },
+        wgpu::VertexAttribute {
+          offset: size_of::<[f32; 6]>() as wgpu::BufferAddress,
+          shader_location: 2,
+          format: wgpu::VertexFormat::Float32x2,
+        },
+      ],
+    }
+  }
+}
+#[derive(Debug, Clone, PartialEq)]
+pub struct Mesh {
+  pub(crate) indices: Option<(wgpu::Buffer, u32)>,
+  pub(crate) vertices: (wgpu::Buffer, u32),
+  pub(crate) aabb: AABB,
+}

src/render/sky.wgsl

@@ -0,0 +1,72 @@
+struct Environment {
+    ambient: vec4<f32>,
+    light: vec4<f32>,
+    dir: vec4<f32>,
+}
+
+struct Eye {
+    // from camera to screen
+    proj: mat4x4<f32>,
+    // from screen to camera
+    inv: mat4x4<f32>,
+    // world to camera
+    view: mat4x4<f32>,
+    // camera transform
+    frame: mat4x4<f32>,
+}
+
+@group(0) @binding(0)
+var<uniform> eye: Eye;
+@group(0) @binding(1)
+var<uniform> environment: Environment;
+@group(0) @binding(2)
+var sky_sampler: sampler;
+@group(0) @binding(3)
+var sky_texture: texture_2d<f32>;
+
+// written on the 60th sleepless hour
+fn sky_aspect(look: vec3<f32>) -> vec4<f32> {
+    var pi = 3.14159;
+    let u_angle = atan2(look.x,look.z);
+    let u = (u_angle/pi) * 0.5 + 0.5; // from -pi/2 -> pi/2 into 0 -> 1
+    let v_angle = atan2(-look.y,sqrt(look.x * look.x + look.z * look.z));
+    let v = (v_angle/pi) - 0.5;//(v_angle/pi) + 0.5; // from -pi/2 -> pi/2 into 0 -> 1
+    let uv = vec2<f32>(u,v); // Get UV on skybox
+    return textureSample(sky_texture, sky_sampler, uv);
+}
+
+struct SkyOutput {
+    @builtin(position) position: vec4<f32>,
+    @location(0) pos: vec4<f32> // unadulterated by WGSL
+}
+
+const VERTICES = array(
+    vec4(-1.0, -1.0, 1.0, 1.0),
+    vec4(-1.0,  1.0, 1.0, 1.0),
+    vec4( 1.0, -1.0, 1.0, 1.0),
+    vec4( 1.0,  1.0, 1.0, 1.0),
+    vec4(-1.0,  1.0, 1.0, 1.0),
+    vec4( 1.0, -1.0, 1.0, 1.0),
+);
+
+fn rotation(it: mat4x4<f32>) -> mat3x3<f32> {
+    return mat3x3<f32>(
+        it[0].xyz,
+        it[1].xyz,
+        it[2].xyz,
+    );
+}
+
+@vertex
+fn vs_sky(@builtin(vertex_index) index: u32) -> SkyOutput {
+    var out: SkyOutput;
+    out.position = VERTICES[index];
+    out.pos = out.position;
+    return out;
+}
+
+@fragment
+fn fs_sky(in: SkyOutput) -> @location(0) vec4<f32> {
+    let look = rotation(eye.frame) * in.pos.xyz;
+    return sky_aspect(look);
+}

src/render/texture.rs

@@ -0,0 +1,115 @@
+use image::EncodableLayout;
+use wgpu::{Device, Queue};
+use crate::render::Renderer;
+
+#[derive(Debug, Clone, Hash, Eq, PartialEq)]
+pub struct Texture {
+  texture: wgpu::Texture,
+  pub(crate) view: wgpu::TextureView,
+}
+pub struct TextureProperties {
+  pub(crate) width: u32,
+  pub(crate) height: u32,
+}
+// todo: use texture compression!
+impl Texture {
+  pub fn depth(config: &wgpu::SurfaceConfiguration, device: &Device) -> Texture {
+    let size = wgpu::Extent3d {
+      // 2.
+      width: config.width.max(1),
+      height: config.height.max(1),
+      depth_or_array_layers: 1,
+    };
+    let desc = wgpu::TextureDescriptor {
+      label: Some("depth texture"),
+      size,
+      mip_level_count: 1,
+      sample_count: 1,
+      dimension: wgpu::TextureDimension::D2,
+      format: wgpu::TextureFormat::Depth32Float,
+      usage: wgpu::TextureUsages::RENDER_ATTACHMENT // 3.
+        | wgpu::TextureUsages::TEXTURE_BINDING,
+      view_formats: &[],
+    };
+    let _depth_texture = device.create_texture(&desc);
+    let depth_view = _depth_texture.create_view(&wgpu::TextureViewDescriptor::default());
+    Texture {
+      texture: _depth_texture,
+      view: depth_view,
+    }
+  }
+  pub fn load(
+    device: &Device,
+    queue: &Queue,
+    slice: impl AsRef<[u8]>,
+    properties: TextureProperties,
+  ) -> Texture {
+    let size = wgpu::Extent3d {
+      width: properties.width,
+      height: properties.height,
+      depth_or_array_layers: 1,
+    };
+    let diffuse_texture = device.create_texture(&wgpu::TextureDescriptor {
+      size,
+      mip_level_count: 1,
+      sample_count: 1,
+      dimension: wgpu::TextureDimension::D2,
+      format: wgpu::TextureFormat::Rgba8UnormSrgb,
+      usage: wgpu::TextureUsages::TEXTURE_BINDING | wgpu::TextureUsages::COPY_DST,
+      label: Some("texture"),
+      view_formats: &[],
+    });
+    let diffuse_texture_view =
+      diffuse_texture.create_view(&wgpu::TextureViewDescriptor::default());
+    queue.write_texture(
+      wgpu::TexelCopyTextureInfo {
+        texture: &diffuse_texture,
+        mip_level: 0,
+        origin: wgpu::Origin3d::ZERO,
+        aspect: wgpu::TextureAspect::All,
+      },
+      slice.as_ref(),
+      wgpu::TexelCopyBufferLayout {
+        offset: 0,
+        bytes_per_row: Some(4 * size.width),
+        rows_per_image: Some(size.height),
+      },
+      size,
+    );
+    Texture {
+      texture: diffuse_texture,
+      view: diffuse_texture_view,
+    }
+  }
+  fn _load_from_file_bytes(
+    device: &Device,
+    queue: &Queue,
+    slice: impl AsRef<[u8]>,
+    format: Option<image::ImageFormat>,
+  ) -> Option<Texture> {
+    let image = if let Some(format) = format {
+      image::load_from_memory_with_format(slice.as_ref(), format)
+    } else {
+      image::load_from_memory(slice.as_ref())
+    };
+    if let Ok(data) = image {
+      let data = data.into_rgba8();
+      Some(Texture::load(
+        device,
+        queue,
+        data.as_bytes(),
+        TextureProperties {
+          width: data.width(),
+          height: data.height(),
+        },
+      ))
+    } else {
+      println!("failed to load texture! error: {:?}", image.unwrap_err());
+      None
+    }
+  }
+  
+  pub fn load_from_file_bytes(renderer: &mut Renderer, slice: impl AsRef<[u8]>, format: Option<image::ImageFormat>) -> Option<Texture> {
+    Texture::_load_from_file_bytes(&renderer.device,&renderer.queue,slice,format)
+  }
+}

src/state.rs

@@ -4,7 +4,7 @@ use crate::{render, world};
 #[derive(Default)]
 pub struct State {
   pub objects: FreeList<world::ObjectData>,
-  pub lights: FreeList<render::LightData>,
+  pub lights: FreeList<render::instance::LightData>,
   pub worlds: FreeList<world::World>,
   pub renderer: Option<render::Renderer>,
   pub screens: FreeList<render::Screen>

src/world/debug.rs

@@ -0,0 +1,100 @@
+use glam::{IVec3, Mat4, Quat, Vec3};
+use wgpu::naga::FastHashMap;
+use crate::list::{FreeList, Id};
+use crate::render;
+use crate::world::{ColliderData, ObjectData, OctreeBlock, Shape, World};
+
+pub struct OctreeDebug {
+  map: FastHashMap<IVec3, Id<ObjectData>>
+}
+
+pub enum OctreeDebugOperation {
+  Add(IVec3,i32),
+  Remove(IVec3),
+}
+
+impl Default for OctreeDebug {
+  fn default() -> Self {
+    Self::new()
+  }
+}
+
+impl OctreeDebug {
+  pub fn new() -> OctreeDebug {
+    OctreeDebug {
+      map: FastHashMap::default()
+    }
+  }
+  fn set_block(
+    &mut self,
+    blocks: &mut FreeList<OctreeBlock>,
+    block: Id<OctreeBlock>,
+    objects: &mut FreeList<ObjectData>,
+    debug: &Option<render::instance::ModelData>,
+    pos: IVec3,
+    mut size: i32
+  ) {
+    let entry = self.map.get(&pos);
+    if let Some(debug) = debug {
+      if entry.is_none() {
+        let mut model = debug.clone();
+        model.instance.transform = Mat4::from_scale_rotation_translation(Vec3::splat(size as f32),Quat::IDENTITY,pos.as_vec3());
+        self.map.insert(pos, objects.make(ObjectData {
+          model: Some(model),
+          collider: ColliderData {
+            shape: Shape::Sphere(size as f32),
+          },
+          affine: Default::default(),
+          asleep: false,
+        }).id);
+        println!("pos {} size {}",pos,size)
+      }
+    } else {
+      if entry.is_some() {
+        objects.remove(self.map.remove(&pos).unwrap());
+      }
+    }
+    size /= 2;
+    if let Some(block) = blocks.get(&block).blocks[0].exists() {
+      self.set_block(blocks,block,objects,debug, pos - (IVec3::new(-1, -1, -1) * size / 2), size);
+    }
+    if let Some(block) = blocks.get(&block).blocks[1].exists() {
+      self.set_block(blocks,block,objects,debug,pos - (IVec3::new(1,-1,-1) * size / 2), size);
+    }
+    if let Some(block) = blocks.get(&block).blocks[2].exists() {
+      self.set_block(blocks,block,objects,debug,pos - (IVec3::new(-1,1,-1) * size / 2), size);
+    }
+    if let Some(block) = blocks.get(&block).blocks[3].exists() {
+      self.set_block(blocks,block,objects,debug,pos - (IVec3::new(1,1,-1) * size / 2), size);
+    }
+    if let Some(block) = blocks.get(&block).blocks[4].exists() {
+      self.set_block(blocks,block,objects,debug,pos - (IVec3::new(-1,-1,1) * size / 2), size);
+    }
+    if let Some(block) = blocks.get(&block).blocks[5].exists() {
+      self.set_block(blocks,block,objects,debug,pos - (IVec3::new(1,-1,1) * size / 2), size);
+    }
+    if let Some(block) = blocks.get(&block).blocks[6].exists() {
+      self.set_block(blocks,block,objects,debug,pos - (IVec3::new(-1,1,1) * size / 2), size);
+    }
+    if let Some(block) = blocks.get(&block).blocks[7].exists() {
+      self.set_block(blocks,block,objects,debug,pos - (IVec3::new(1,1,1) * size / 2), size);
+    }
+  }
+  pub fn set(&mut self, objects: &mut FreeList<ObjectData>, world: &mut World, debug: Option<render::instance::ModelData>) {
+    for (index,block) in world.matter.map.iter_mut() {
+      self.set_block(
+        &mut world.matter.blocks,
+        block.clone(),
+        objects,
+        &debug,
+        index * OctreeBlock::CHUNK_SIZE,
+        OctreeBlock::CHUNK_SIZE,
+      )
+    }
+  }
+  pub fn register(&mut self, objects: &mut FreeList<ObjectData>, renderer: &mut render::Renderer) {
+    for (pos,block) in self.map.iter() {
+      renderer.instances.register_object(objects.get_ref(block.clone()));
+    }
+  }
+}

src/world/mod.rs

@@ -1,3 +1,6 @@
+pub mod debug;
+
+use crate::render::instance::ModelData;
 use glam::{Affine3, IVec3, Mat4, Quat, Vec3};
 use std::cell::RefCell;
 use std::hash::{BuildHasherDefault, Hash, Hasher};
@@ -43,15 +46,22 @@ impl ColliderData {
 
 #[derive(Clone)]
 pub struct ObjectData {
-    pub model: Option<render::ModelData>,
+    pub model: Option<render::instance::ModelData>,
     pub collider: ColliderData,
     pub affine: Affine3,
     pub asleep: bool,
 }
 
+impl ObjectData {
+    pub fn set_affine(&mut self, affine: Affine3) {
+        self.affine = affine;
+        self.asleep = false;
+    }
+}
+
 #[derive(Clone, Eq, PartialEq)]
 pub enum InterestType {
-    Light(Id<render::LightData>),
+    Light(Id<render::instance::LightData>),
     Object(Id<ObjectData>)
 }
 
@@ -119,100 +129,6 @@ impl Default for World {
     }
 }
 
-pub struct OctreeDebug {
-    map: FastHashMap<IVec3, Id<ObjectData>>
-}
-
-pub enum OctreeDebugOperation {
-    Add(IVec3,i32),
-    Remove(IVec3),
-}
-
-impl Default for OctreeDebug {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
-impl OctreeDebug {
-    pub fn new() -> OctreeDebug {
-        OctreeDebug {
-            map: FastHashMap::default()
-        }
-    }
-    fn set_block(
-        &mut self,
-        blocks: &mut FreeList<OctreeBlock>,
-        block: Id<OctreeBlock>,
-        objects: &mut FreeList<ObjectData>,
-        debug: &Option<render::ModelData>,
-        pos: IVec3,
-        size: i32
-    ) {
-        let entry = self.map.get(&pos);
-        if let Some(debug) = debug {
-            if entry.is_none() {
-                let mut model = debug.clone();
-                model.instance.transform = Mat4::from_scale_rotation_translation(Vec3::splat(size as f32),Quat::IDENTITY,pos.as_vec3());
-                self.map.insert(pos, objects.make(ObjectData {
-                    model: Some(model),
-                    collider: ColliderData {
-                        shape: Shape::Sphere(size as f32),
-                    },
-                    affine: Default::default(),
-                    asleep: false,
-                }).id);
-                println!("pos {} size {}",pos,size)
-            }
-        } else {
-            if entry.is_some() {
-                objects.remove(self.map.remove(&pos).unwrap());
-            }
-        }
-        if let Some(block) = blocks.get(&block).blocks[0].exists() {
-            self.set_block(blocks,block,objects,debug, pos - (IVec3::new(-1, -1, -1) * size / 4), size / 2);
-        }
-        if let Some(block) = blocks.get(&block).blocks[1].exists() {
-            self.set_block(blocks,block,objects,debug,pos - (IVec3::new(1,-1,-1) * size / 4), size / 2);
-        }
-        if let Some(block) = blocks.get(&block).blocks[2].exists() {
-            self.set_block(blocks,block,objects,debug,pos - (IVec3::new(-1,1,-1) * size / 4), size / 2);
-        }
-        if let Some(block) = blocks.get(&block).blocks[3].exists() {
-            self.set_block(blocks,block,objects,debug,pos - (IVec3::new(1,1,-1) * size / 4), size / 2);
-        }
-        if let Some(block) = blocks.get(&block).blocks[4].exists() {
-            self.set_block(blocks,block,objects,debug,pos - (IVec3::new(-1,-1,1) * size / 4), size / 2);
-        }
-        if let Some(block) = blocks.get(&block).blocks[5].exists() {
-            self.set_block(blocks,block,objects,debug,pos - (IVec3::new(1,-1,1) * size / 4), size / 2);
-        }
-        if let Some(block) = blocks.get(&block).blocks[6].exists() {
-            self.set_block(blocks,block,objects,debug,pos - (IVec3::new(-1,1,1) * size / 4), size / 2);
-        }
-        if let Some(block) = blocks.get(&block).blocks[7].exists() {
-            self.set_block(blocks,block,objects,debug,pos - (IVec3::new(1,1,1) * size / 4), size / 2);
-        }
-    }
-    pub fn set(&mut self, objects: &mut FreeList<ObjectData>, world: &mut World, debug: Option<render::ModelData>) {
-        for (index,block) in world.matter.map.iter_mut() {
-            self.set_block(
-                &mut world.matter.blocks,
-                block.clone(),
-                objects,
-                &debug,
-                index * OctreeBlock::CHUNK_SIZE,
-                OctreeBlock::CHUNK_SIZE,
-            )
-        }
-    }
-    pub fn register(&mut self, objects: &mut FreeList<ObjectData>, renderer: &mut render::Renderer) {
-        for (pos,block) in self.map.iter() {
-            renderer.instances.register_object(objects.get_ref(block.clone()));
-        }
-    }
-}
-
 impl World {
     pub fn new() -> World {
         World {
@@ -228,15 +144,15 @@ impl World {
         object.id
     }
     pub fn remove_object(&mut self, object: Id<ObjectData>) {
-
+        
     }
     pub fn step(
         &mut self,
         maybe_renderer: &mut Option<render::Renderer>,
         objects: &mut FreeList<ObjectData>,
-        _lights: &mut FreeList<render::LightData>,
+        _lights: &mut FreeList<render::instance::LightData>,
     ) {
-        /*fn reinsert(
+        fn reinsert(
             block_id: &Id<OctreeBlock>,
             blocks: &mut FreeList<OctreeBlock>,
             interests: &mut FreeList<InterestNode>,
@@ -247,10 +163,6 @@ impl World {
                 let interest = interests.get(&interest_id);
                 match interest.interest.it {
                     InterestType::Object(ref object_id) => {
-                        let mut object = objects.get_ref(object_id.clone());
-                        let transform = Mat4::from_mat3_translation(object.affine.matrix3, object.affine.translation);
-                        object.model.as_mut().unwrap().instance.transform = transform;
-                        instances.register_object(object)
                     }
                     _ => {}
                 }
@@ -263,8 +175,8 @@ impl World {
             }
         }
         for (_pos,id) in self.matter.map.iter() {
-            reinsert(id, &mut self.matter.blocks, &mut self.matter.interests, objects)
+            reinsert(id, &mut self.matter.blocks, &mut self.matter.nodes, objects)
-        }*/
+        }
         if let Some(renderer) = maybe_renderer {
             fn consider(
                 block_id: &Id<OctreeBlock>,
@@ -294,7 +206,7 @@ impl World {
                 }
             }
             for (_pos,id) in self.matter.map.iter() {
-                consider(id, renderer, &mut self.matter.blocks, &mut self.matter.interests, objects)
+                consider(id, renderer, &mut self.matter.blocks, &mut self.matter.nodes, objects)
             }
         }
     }
@@ -340,14 +252,14 @@ struct OctreeBlock {
 }
 
 impl OctreeBlock {
-    fn push(&mut self, interests: &mut FreeList<InterestNode>, interest: Interest) {
+    fn push_interest(&mut self, interests: &mut FreeList<InterestNode>, interest: Interest) {
         self.first = interests.make(InterestNode {
             interest: interest.clone(),
             next: self.first.clone(),
         }).id.maybe();
         self.interests += 1;
     }
-    fn remove(&mut self, interests: &mut FreeList<InterestNode>, needle: Interest) {
+    fn remove_interest(&mut self, interests: &mut FreeList<InterestNode>, needle: Interest) { // todo: needed?
         let mut maybe_last = MaybeId::NULL;
         let mut maybe_this = self.first.clone();
         while let Some(this) = maybe_this.exists() {
@@ -376,7 +288,7 @@ impl OctreeBlock {
         size: i32,
     ) {
         if pos == IVec3::ZERO || blocks.get(&it).interests < OctreeBlock::MAX_IDEAL_INTEREST as u32 {
-            blocks.get(&it).push(interests,interest)
+            blocks.get(&it).push_interest(interests, interest)
         } else {
             let mut index = 0;
             let x = if pos.x > 0 {
@@ -413,8 +325,9 @@ impl OctreeBlock {
 
 type Blocks = [MaybeId<OctreeBlock>; 8];
 
-struct OctreeMap {
+pub struct OctreeMap {
-    interests: FreeList<InterestNode>,
+    interests: FreeList<Interest>,
+    nodes: FreeList<InterestNode>,
     blocks: FreeList<OctreeBlock>,
     map: FastHashMap<IVec3, Id<OctreeBlock>>,
 }
@@ -446,7 +359,7 @@ impl OctreeMap {
                     OctreeBlock::place(
                         block.clone(),
                         &mut self.blocks,
-                        &mut self.interests,
+                        &mut self.nodes,
                         interest.clone(),
                         pos,
                         OctreeBlock::CHUNK_SIZE,
@@ -458,6 +371,7 @@ impl OctreeMap {
     fn new() -> OctreeMap {
         OctreeMap {
             interests: Default::default(),
+            nodes: Default::default(),
             blocks: Default::default(),
             map: FastHashMap::with_hasher(BuildHasherDefault::default()),
         }