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https://github.com/guilhermewerner/wgpu-renderer
synced 2025-06-15 21:34:21 +00:00
Update project
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Werner
451
Source/lib.rs
451
Source/lib.rs
@ -1,445 +1,16 @@
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#![allow(non_snake_case)]
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#[path = "Camera.rs"]
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mod _Camera;
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pub use self::_Camera::*;
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pub mod Camera;
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pub mod Render;
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#[path = "DrawModel.rs"]
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mod _DrawModel;
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pub use self::_DrawModel::*;
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#[path = "Display.rs"]
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mod _Display;
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pub use self::_Display::*;
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#[path = "Instance.rs"]
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mod _Instance;
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pub use self::_Instance::*;
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#[path = "Runtime.rs"]
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mod _Runtime;
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pub use self::_Runtime::*;
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#[path = "Material.rs"]
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mod _Material;
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pub use self::_Material::*;
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#[path = "Model.rs"]
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mod _Model;
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pub use self::_Model::*;
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#[path = "Mesh.rs"]
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mod _Mesh;
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pub use self::_Mesh::*;
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#[path = "Texture.rs"]
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mod _Texture;
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pub use self::_Texture::*;
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#[path = "Vertex.rs"]
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mod _Vertex;
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pub use self::_Vertex::*;
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use bytemuck::{Pod, Zeroable};
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use cgmath::prelude::*;
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use image::GenericImageView;
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use std::mem;
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use std::path::PathBuf;
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use wgpu::util::DeviceExt;
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use winit::dpi::LogicalSize;
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use winit::event::*;
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use winit::event_loop::{ControlFlow, EventLoop};
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use winit::window::Window;
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use winit::window::WindowBuilder;
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pub struct State {
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surface: wgpu::Surface,
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device: wgpu::Device,
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queue: wgpu::Queue,
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config: wgpu::SurfaceConfiguration,
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size: winit::dpi::PhysicalSize<u32>,
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render_pipeline: wgpu::RenderPipeline,
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obj_model: Model,
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camera: Camera,
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camera_controller: CameraController,
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camera_uniform: CameraUniform,
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camera_buffer: wgpu::Buffer,
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camera_bind_group: wgpu::BindGroup,
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instances: Vec<Instance>,
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instance_buffer: wgpu::Buffer,
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depth_texture: Texture,
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}
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impl State {
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async fn new(window: &Window) -> Self {
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let size = window.inner_size();
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// The instance is a handle to our GPU
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// BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
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let instance = wgpu::Instance::new(wgpu::Backends::all());
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let surface = unsafe { instance.create_surface(window) };
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let adapter = instance
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.request_adapter(&wgpu::RequestAdapterOptions {
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power_preference: wgpu::PowerPreference::default(),
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compatible_surface: Some(&surface),
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force_fallback_adapter: false,
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})
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.await
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.unwrap();
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let (device, queue) = adapter
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.request_device(
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&wgpu::DeviceDescriptor {
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label: None,
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features: wgpu::Features::empty(),
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limits: wgpu::Limits::default(),
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},
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None,
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)
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.await
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.unwrap();
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let config = wgpu::SurfaceConfiguration {
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usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
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format: surface.get_preferred_format(&adapter).unwrap(),
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width: size.width,
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height: size.height,
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present_mode: wgpu::PresentMode::Fifo,
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};
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surface.configure(&device, &config);
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let texture_bind_group_layout =
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device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
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entries: &[
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wgpu::BindGroupLayoutEntry {
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binding: 0,
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visibility: wgpu::ShaderStages::FRAGMENT,
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ty: wgpu::BindingType::Texture {
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multisampled: false,
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view_dimension: wgpu::TextureViewDimension::D2,
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sample_type: wgpu::TextureSampleType::Float { filterable: true },
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},
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count: None,
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},
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wgpu::BindGroupLayoutEntry {
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binding: 1,
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visibility: wgpu::ShaderStages::FRAGMENT,
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ty: wgpu::BindingType::Sampler {
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comparison: false,
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filtering: true,
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},
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count: None,
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},
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],
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label: Some("texture_bind_group_layout"),
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});
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// Camera
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let camera = Camera {
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eye: (0.0, 5.0, -10.0).into(),
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target: (0.0, 0.0, 0.0).into(),
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up: cgmath::Vector3::unit_y(),
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aspect: config.width as f32 / config.height as f32,
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fovy: 45.0,
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znear: 0.1,
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zfar: 100.0,
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};
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let camera_controller = CameraController::new(0.2);
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let mut camera_uniform = CameraUniform::new();
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camera_uniform.update_view_proj(&camera);
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let camera_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
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label: Some("Camera Buffer"),
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contents: bytemuck::cast_slice(&[camera_uniform]),
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usage: wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST,
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});
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const SPACE_BETWEEN: f32 = 3.0;
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let instances = (0..NUM_INSTANCES_PER_ROW)
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.flat_map(|z| {
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(0..NUM_INSTANCES_PER_ROW).map(move |x| {
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let x = SPACE_BETWEEN * (x as f32 - NUM_INSTANCES_PER_ROW as f32 / 2.0);
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let z = SPACE_BETWEEN * (z as f32 - NUM_INSTANCES_PER_ROW as f32 / 2.0);
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let position = cgmath::Vector3 { x, y: 0.0, z };
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let rotation = if position.is_zero() {
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cgmath::Quaternion::from_axis_angle(
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cgmath::Vector3::unit_z(),
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cgmath::Deg(0.0),
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)
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} else {
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cgmath::Quaternion::from_axis_angle(position.normalize(), cgmath::Deg(45.0))
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};
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Instance { position, rotation }
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})
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})
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.collect::<Vec<_>>();
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let instance_data = instances.iter().map(Instance::to_raw).collect::<Vec<_>>();
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let instance_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
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label: Some("Instance Buffer"),
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contents: bytemuck::cast_slice(&instance_data),
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usage: wgpu::BufferUsages::VERTEX,
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});
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let camera_bind_group_layout =
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device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
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entries: &[wgpu::BindGroupLayoutEntry {
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binding: 0,
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visibility: wgpu::ShaderStages::VERTEX,
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ty: wgpu::BindingType::Buffer {
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ty: wgpu::BufferBindingType::Uniform,
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has_dynamic_offset: false,
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min_binding_size: None,
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},
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count: None,
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}],
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label: Some("camera_bind_group_layout"),
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});
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let camera_bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
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layout: &camera_bind_group_layout,
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entries: &[wgpu::BindGroupEntry {
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binding: 0,
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resource: camera_buffer.as_entire_binding(),
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}],
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label: Some("camera_bind_group"),
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});
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// Model
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let obj_model = Model::load(
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&device,
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&queue,
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&texture_bind_group_layout,
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PathBuf::from("./Resources/Cube.obj"),
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)
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.unwrap();
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// Shader
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let shader = device.create_shader_module(&wgpu::ShaderModuleDescriptor {
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label: Some("shader.wgsl"),
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source: wgpu::ShaderSource::Wgsl(include_str!("../Shaders/Texture.wgsl").into()),
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});
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// Texture
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let depth_texture = Texture::create_depth_texture(&device, &config, "depth_texture");
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// Pipeline
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let render_pipeline_layout =
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device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
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label: Some("Render Pipeline Layout"),
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bind_group_layouts: &[&texture_bind_group_layout, &camera_bind_group_layout],
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push_constant_ranges: &[],
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});
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let render_pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
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label: Some("Render Pipeline"),
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layout: Some(&render_pipeline_layout),
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vertex: wgpu::VertexState {
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module: &shader,
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entry_point: "main",
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buffers: &[ModelVertex::desc(), InstanceRaw::desc()],
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},
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fragment: Some(wgpu::FragmentState {
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module: &shader,
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entry_point: "main",
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targets: &[wgpu::ColorTargetState {
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format: config.format,
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blend: Some(wgpu::BlendState {
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color: wgpu::BlendComponent::REPLACE,
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alpha: wgpu::BlendComponent::REPLACE,
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}),
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write_mask: wgpu::ColorWrites::ALL,
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}],
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}),
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primitive: wgpu::PrimitiveState {
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topology: wgpu::PrimitiveTopology::TriangleList,
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strip_index_format: None,
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front_face: wgpu::FrontFace::Ccw,
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cull_mode: Some(wgpu::Face::Back),
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// Setting this to anything other than Fill requires Features::NON_FILL_POLYGON_MODE
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polygon_mode: wgpu::PolygonMode::Fill,
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// Requires Features::DEPTH_CLAMPING
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clamp_depth: false,
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// Requires Features::CONSERVATIVE_RASTERIZATION
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conservative: false,
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},
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depth_stencil: Some(wgpu::DepthStencilState {
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format: Texture::DEPTH_FORMAT,
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depth_write_enabled: true,
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depth_compare: wgpu::CompareFunction::Less,
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stencil: wgpu::StencilState::default(),
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bias: wgpu::DepthBiasState::default(),
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}),
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multisample: wgpu::MultisampleState {
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count: 1,
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mask: !0,
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alpha_to_coverage_enabled: false,
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},
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});
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Self {
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surface,
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device,
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queue,
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config,
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size,
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render_pipeline,
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obj_model,
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camera,
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camera_controller,
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camera_buffer,
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camera_bind_group,
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camera_uniform,
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instances,
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instance_buffer,
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depth_texture,
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}
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}
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pub fn resize(&mut self, new_size: winit::dpi::PhysicalSize<u32>) {
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if new_size.width > 0 && new_size.height > 0 {
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self.size = new_size;
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self.config.width = new_size.width;
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self.config.height = new_size.height;
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self.surface.configure(&self.device, &self.config);
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}
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self.depth_texture =
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Texture::create_depth_texture(&self.device, &self.config, "depth_texture");
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}
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fn input(&mut self, event: &WindowEvent) -> bool {
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self.camera_controller.process_events(event)
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}
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fn update(&mut self) {
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self.camera_controller.update_camera(&mut self.camera);
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self.camera_uniform.update_view_proj(&self.camera);
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self.queue.write_buffer(
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&self.camera_buffer,
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0,
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bytemuck::cast_slice(&[self.camera_uniform]),
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);
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}
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fn render(&mut self) -> Result<(), wgpu::SurfaceError> {
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let output = self.surface.get_current_texture()?;
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let view = output
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.texture
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.create_view(&wgpu::TextureViewDescriptor::default());
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let mut encoder = self
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.device
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.create_command_encoder(&wgpu::CommandEncoderDescriptor {
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label: Some("Render Encoder"),
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});
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{
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let mut render_pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
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label: Some("Render Pass"),
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color_attachments: &[wgpu::RenderPassColorAttachment {
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view: &view,
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resolve_target: None,
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ops: wgpu::Operations {
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load: wgpu::LoadOp::Clear(wgpu::Color {
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r: 0.1,
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g: 0.2,
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b: 0.3,
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a: 1.0,
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}),
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store: true,
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},
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}],
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depth_stencil_attachment: Some(wgpu::RenderPassDepthStencilAttachment {
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view: &self.depth_texture.view,
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depth_ops: Some(wgpu::Operations {
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load: wgpu::LoadOp::Clear(1.0),
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store: true,
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}),
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stencil_ops: None,
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}),
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});
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render_pass.set_vertex_buffer(1, self.instance_buffer.slice(..));
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render_pass.set_pipeline(&self.render_pipeline);
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render_pass.draw_model_instanced(
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&self.obj_model,
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0..self.instances.len() as u32,
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&self.camera_bind_group,
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);
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}
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self.queue.submit(std::iter::once(encoder.finish()));
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output.present();
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Ok(())
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}
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}
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#[doc(hidden)]
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pub fn Main() {
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env_logger::init();
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let event_loop = EventLoop::new();
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let window = WindowBuilder::new()
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.with_title("Renderer")
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.with_inner_size(LogicalSize::new(1280, 720))
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.build(&event_loop)
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.unwrap();
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// State::new uses async code, so we're going to wait for it to finish
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let mut state = pollster::block_on(State::new(&window));
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event_loop.run(move |event, _, control_flow| {
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match event {
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Event::WindowEvent {
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ref event,
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window_id,
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} if window_id == window.id() => {
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if !state.input(event) {
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match event {
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WindowEvent::CloseRequested
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| WindowEvent::KeyboardInput {
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input:
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KeyboardInput {
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state: ElementState::Pressed,
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virtual_keycode: Some(VirtualKeyCode::Escape),
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..
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},
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..
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} => *control_flow = ControlFlow::Exit,
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WindowEvent::Resized(physical_size) => {
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state.resize(*physical_size);
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}
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WindowEvent::ScaleFactorChanged { new_inner_size, .. } => {
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state.resize(**new_inner_size);
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}
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_ => {}
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}
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}
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}
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Event::RedrawRequested(_) => {
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state.update();
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match state.render() {
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Ok(_) => {}
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// Reconfigure the surface if lost
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Err(wgpu::SurfaceError::Lost) => state.resize(state.size),
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// The system is out of memory, we should probably quit
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Err(wgpu::SurfaceError::OutOfMemory) => *control_flow = ControlFlow::Exit,
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// All other errors (Outdated, Timeout) should be resolved by the next frame
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Err(e) => eprintln!("{:?}", e),
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}
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}
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Event::MainEventsCleared => {
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// RedrawRequested will only trigger once, unless we manually
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// request it.
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window.request_redraw();
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}
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_ => {}
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}
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});
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}
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#[path = "State.rs"]
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mod _State;
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pub use self::_State::*;
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