fix ubo

shaders/triangle.vert

@@ -1,7 +1,7 @@
 #version 450
 #extension GL_ARB_separate_shader_objects : enable
 
-layout(binding = 0) uniform UniformBufferObject {
+layout(binding = 0) uniform ObjectUniformData {
     mat4 view;
     mat4 projection;
     float time;
@@ -14,8 +14,6 @@ layout(location = 0) out vec2 tex_coords;
 
 layout(push_constant) uniform PushConstants {
     mat4 model;
-    mat4 view;
-    mat4 projection;
 } push;
 
 out gl_PerVertex {
@@ -23,6 +21,6 @@ out gl_PerVertex {
 };
 
 void main() {
-    gl_Position = push.projection * push.view * push.model * vec4(position, 1.0);
+    gl_Position = ubo.projection * ubo.view * push.model * vec4(position, 1.0);
     tex_coords = uv;
 }

src/main.rs

@@ -4,7 +4,7 @@ use winit::event::Event;
 use crate::config::LogConfig;
 use crate::input::InputState;
 use crate::vulkan::{Game, GameObject, GameObjectHandle, LinePoint, MeshHandle, VulkanRenderer};
-use crate::vulkan::vs::ty::UniformBufferObject;
+use crate::vulkan::vs::ty::ObjectUniformData;
 
 mod vulkan;
 mod input;
@@ -25,7 +25,7 @@ impl Game for TestGame {
         self.input.on_window_event(event);
     }
 
-    fn update(self: &mut Self, renderer: &mut VulkanRenderer) -> UniformBufferObject {
+    fn update(self: &mut Self, renderer: &mut VulkanRenderer) -> ObjectUniformData {
         self.input.frame_start();
         let time = (renderer.game_data.start_time.elapsed().unwrap().as_micros() as f64 / 1000000.0) as f32;
 
@@ -68,12 +68,10 @@ impl Game for TestGame {
 
         renderer.game_data.line_push_constants.view = view.into();
         renderer.game_data.line_push_constants.projection = proj.into();
-        renderer.game_data.push_constants.view = view.into();
-        renderer.game_data.push_constants.projection = proj.into();
 
         self.input.frame_end();
 
-        UniformBufferObject {
+        ObjectUniformData {
             view: view.into(),
             projection: proj.into(),
             time,

src/vulkan.rs

@@ -1,4 +1,4 @@
-use std::sync::{Arc};
+use std::sync::Arc;
 use std::time::SystemTime;
 
 use cgmath::{Matrix4, SquareMatrix};
@@ -6,7 +6,7 @@ use image::{ImageBuffer, ImageFormat, Rgb, Rgba};
 use image::buffer::ConvertBuffer;
 use vulkano::buffer::{BufferUsage, CpuAccessibleBuffer};
 use vulkano::command_buffer::{AutoCommandBuffer, AutoCommandBufferBuilder, DynamicState};
-use vulkano::descriptor::descriptor_set::{PersistentDescriptorSet};
+use vulkano::descriptor::descriptor_set::PersistentDescriptorSet;
 use vulkano::descriptor::DescriptorSet;
 use vulkano::device::{Device, DeviceExtensions, Queue};
 use vulkano::format::{ClearValue, Format};
@@ -24,7 +24,7 @@ use vulkano::sync::{FlushError, GpuFuture};
 use vulkano::sync;
 use vulkano_win::VkSurfaceBuild;
 use winit::event::{Event, WindowEvent};
-use winit::event_loop::{EventLoop, ControlFlow};
+use winit::event_loop::{ControlFlow, EventLoop};
 use winit::window::{Window, WindowBuilder};
 
 use line_vs::ty::LinePushConstants;
@@ -54,7 +54,7 @@ pub trait Game {
     /// Returns true if event should be ignored by the vulkan handler
     fn on_window_event(self: &mut Self, event: &Event<()>);
 
-    fn update(self: &mut Self, renderer: &mut VulkanRenderer) -> vs::ty::UniformBufferObject;
+    fn update(self: &mut Self, renderer: &mut VulkanRenderer) -> vs::ty::ObjectUniformData;
 }
 
 pub struct Mesh {
@@ -84,7 +84,7 @@ pub struct GameData {
     pub textures: Vec<Arc<ImmutableImage<Format>>>,
 }
 
-type Yeet = dyn DescriptorSet + Send + Sync;
+type RendererDescriptorSets = dyn DescriptorSet + Send + Sync;
 
 pub struct VulkanRenderer {
     pub game_data: GameData,
@@ -102,8 +102,8 @@ pub struct VulkanRenderer {
     pub recreate_swapchain: bool,
     pub debug_callback: Option<DebugCallback>,
     pub previous_frame_end: Option<Box<dyn GpuFuture>>,
-    pub uniform_buffers: Vec<Arc<CpuAccessibleBuffer<vs::ty::UniformBufferObject>>>,
+    pub uniform_buffers: Vec<Arc<CpuAccessibleBuffer<vs::ty::ObjectUniformData>>>,
-    pub descriptor_sets: Vec<Arc<Yeet>>,
+    pub descriptor_sets: Vec<Arc<RendererDescriptorSets>>,
 }
 
 impl VulkanRenderer {
@@ -111,8 +111,6 @@ impl VulkanRenderer {
         let mut data = GameData {
             push_constants: PushConstants {
                 model: Matrix4::identity().into(),
-                view: Matrix4::identity().into(),
-                projection: Matrix4::identity().into(),
             },
             line_push_constants: LinePushConstants {
                 model: Matrix4::identity().into(),
@@ -284,7 +282,7 @@ impl VulkanRenderer {
         let framebuffers = window_size_dependent_setup(device.clone(), &images, render_pass.clone(), &mut dynamic_state);
 
         let mut uniform_buffers = Vec::new();
-        let uniform_buffer = vs::ty::UniformBufferObject { view: Matrix4::identity().into(), projection: Matrix4::identity().into(), time: 0.0 };
+        let uniform_buffer = vs::ty::ObjectUniformData { view: Matrix4::identity().into(), projection: Matrix4::identity().into(), time: 0.0 };
 
         for _ in 0..swapchain.num_images() {
             uniform_buffers.push(CpuAccessibleBuffer::from_data(
@@ -299,7 +297,7 @@ impl VulkanRenderer {
 
         let descriptor_sets = uniform_buffers.iter().map(|uniform_buffer| {
             let builder = PersistentDescriptorSet::start(descriptor_set_layout.clone());
-            let result: Arc<Yeet> = Arc::new(builder
+            let result: Arc<RendererDescriptorSets> = Arc::new(builder
                 .add_buffer(uniform_buffer.clone()).unwrap()
                 .add_sampled_image(default_tex.clone(), sampler.clone()).unwrap()
                 .build().unwrap());
@@ -322,9 +320,9 @@ impl VulkanRenderer {
             recreate_swapchain: false, debug_callback, previous_frame_end }, events_loop)
     }
 
-    fn create_command_buffer(self: &mut Self, fb_index: usize, ubo: vs::ty::UniformBufferObject) -> Arc<AutoCommandBuffer> {
+    fn create_command_buffer(self: &mut Self, fb_index: usize, uniform_buffer_data: vs::ty::ObjectUniformData) -> Arc<AutoCommandBuffer> {
         let mut builder = AutoCommandBufferBuilder::primary_simultaneous_use(self.device.clone(), self.queue.family()).unwrap();
-        builder.update_buffer(self.uniform_buffers[fb_index].clone(), ubo).unwrap();
+        builder.update_buffer(self.uniform_buffers[fb_index].clone(), uniform_buffer_data).unwrap();
         builder.begin_render_pass(self.framebuffers[fb_index].clone(), false, vec![ClearValue::Float([0.0, 0.0, 0.0, 1.0]), ClearValue::Depth(1.0)]).unwrap();
 
         for i in 0..self.game_data.game_objects.len() {
@@ -347,13 +345,11 @@ impl VulkanRenderer {
         Arc::new(builder.build().unwrap())
     }
 
-    pub fn render_loop(self: &mut Self, new_ubo: vs::ty::UniformBufferObject) {
+    pub fn render_loop(self: &mut Self, new_ubo: vs::ty::ObjectUniformData) {
-        // It is important to call this function from time to time, otherwise resources will keep
+        // cleanup previous frame
-        // accumulating and you will eventually reach an out of memory error.
-        // Calling this function polls various fences in order to determine what the GPU has
-        // already processed, and frees the resources that are no longer needed.
         self.previous_frame_end.as_mut().unwrap().cleanup_finished();
 
+        // recreate swapchain if window size changed
         if self.recreate_swapchain {
             let window = self.surface.window();
             let inner_size = window.inner_size();
@@ -378,6 +374,7 @@ impl VulkanRenderer {
             self.recreate_swapchain = false;
         }
 
+        // recreate pipeline if requested
         if self.game_data.recreate_pipeline {
             if let Some(pipeline_ok) = create_pipeline::<Vertex>(self.device.clone(), self.render_pass.clone(), false) {
                 self.pipeline = pipeline_ok;
@@ -468,7 +465,7 @@ impl VulkanRenderer {
 
 pub fn start_event_loop(mut renderer: VulkanRenderer, mut game: Box<dyn Game>, event_loop: EventLoop<()>) {
     let mut recreate_swapchain = false;
-    let ubo = game.update(&mut renderer);
+    let mut ubo = game.update(&mut renderer);
 
     event_loop.run(move |event, _, control_flow| {
         game.on_window_event(&event);
@@ -480,7 +477,7 @@ pub fn start_event_loop(mut renderer: VulkanRenderer, mut game: Box<dyn Game>, e
                 recreate_swapchain = true;
             },
             Event::RedrawEventsCleared => {
-                game.update(&mut renderer);
+                ubo = game.update(&mut renderer);
                 renderer.render_loop(ubo);
             },
             _ => {}