improve error handling

engine/src/core/render/ctx.rs

@@ -6,7 +6,7 @@ use std::time::Instant;
 use cgmath::{Deg, Matrix4, Point3, Rad, SquareMatrix, Vector3, perspective};
 use futures::executor::block_on;
 use thiserror::Error;
-use tracing::{error, info, trace};
+use tracing::{debug, error, info, trace};
 use wgpu::TextureUsages;
 use wgpu::{Backends, InstanceDescriptor, util::DeviceExt};
 use wgpu_text::glyph_brush::ab_glyph::FontRef;
@@ -333,7 +333,7 @@ struct FontState {
 impl<'window> Renderer<'window> {
     pub async fn new(window: Arc<Window>) -> Result<Self, RenderContextError> {
         let instance = wgpu::Instance::new(&InstanceDescriptor {
-            backends: Backends::from_comma_list("dx12,metal,opengl,webgpu"),
+            backends: Backends::from_comma_list("dx12,metal,opengl,webgpu,vulkan"),
             ..Default::default()
         });
 
@@ -458,23 +458,31 @@ impl<'window> Renderer<'window> {
         let camera = Camera::new(&device, &camera_bind_group_layout, width, height);
 
         let surface_caps = surface.get_capabilities(&adapter);
+        let present_mode = [
+            wgpu::PresentMode::Immediate,
+            wgpu::PresentMode::Mailbox,
+            wgpu::PresentMode::AutoNoVsync,
+        ]
+        .iter()
+        .copied()
+        .find(|mode| surface_caps.present_modes.contains(mode))
+        .unwrap_or(wgpu::PresentMode::Fifo);
+
+        debug!("Using {:#?} present mode.", present_mode);
+
         let surface_config = wgpu::SurfaceConfiguration {
             width,
             height,
             format: surface_caps.formats[0],
-            present_mode: wgpu::PresentMode::AutoNoVsync,
+            present_mode,
             alpha_mode: wgpu::CompositeAlphaMode::Auto,
             view_formats: vec![],
             usage: TextureUsages::RENDER_ATTACHMENT,
             desired_maximum_frame_latency: 3,
         };
         surface.configure(&device, &surface_config);
-        let (depth_texture, depth_texture_view) = create_depth_texture(
-            &device,
-            surface_config.width,
-            surface_config.height,
-            // surface_config.format,
-        );
+        let (depth_texture, depth_texture_view) =
+            create_depth_texture(&device, surface_config.width, surface_config.height);
 
         let font_bytes = include_bytes!("DejaVuSans.ttf");
         let font = FontRef::try_from_slice(font_bytes).map_err(|e| {
@@ -706,7 +714,6 @@ fn create_depth_texture(
     device: &wgpu::Device,
     width: u32,
     height: u32,
-    // format: wgpu::TextureFormat,
 ) -> (wgpu::Texture, wgpu::TextureView) {
     let size = wgpu::Extent3d {
         width,