Added some comments, updated README with progress notes

implot-examples/README.md

@@ -8,8 +8,9 @@ Things are structured as follows:
 * [implot-glium-examples](implot-glium-examples/) is an example for using `implot-rs` in 
 conjunction with a [Glium](https://github.com/glium/glium) backend.
 * [implot-wgpu-examples](implot-wgpu-examples/) is an example for using `implot-rs` in 
-conjunction with a [WebGPU](https://github.com/gfx-rs/wgpu) backend.
+conjunction with a [WebGPU](https://github.com/gfx-rs/wgpu) backend (work in progress, this
+uses wgpu, but does currently not make use of `examples-shared` yet and has not been refactored
+to look the same as the glium example structurally)
 
 If you want to just copy-paste code to start with, copy `examples-shared` along with 
-your favourite backend example crate.
-
+your favourite backend example crate. The glium backend code is largely taken from imgui-rs.

implot-examples/implot-wgpu-examples/Cargo.toml

@@ -5,7 +5,7 @@ authors = ["Benedikt Mandelkow <benedikt.mandelkow@rwth-aachen.de>", "imgui-wgpu
 edition = "2018"
 
 [dependencies]
-implot = { path = "../" }
+implot = { path = "../../" }
 
 wgpu = "^0.6.0"
 winit = "^0.22.2" # opening windows and handling input
@@ -13,3 +13,4 @@ futures = "^0.3.5" # executing async functions using blocking executor
 imgui = "^0.5.0"
 imgui-winit-support = "^0.5.0" # connection of input (keys) to imgui
 imgui-wgpu = "^0.11.0" # imgui backend for drawing using wgpu
+examples-shared = { path = "../examples-shared" }

implot-examples/implot-wgpu-examples/src/main.rs

@@ -9,10 +9,11 @@ use winit::{
     window::Window,
 };
 
-// the actual implot samples are in there
+// the actual implot samples are in there TODO(4bb4) move to using examples-shared instead
 mod ui;
 
 fn main() {
+    // --- Backend setup ----------------------------------------------------------------
     // Set up window and GPU
     let event_loop = EventLoop::new();
     let instance = wgpu::Instance::new(wgpu::BackendBit::PRIMARY);
@@ -97,7 +98,7 @@ fn main() {
     let mut showing_demo = false;
     let mut make_fullscreen = false;
 
-    // Event loop
+    // --- Event loop -------------------------------------------------------------------
     event_loop.run(move |event, _, control_flow| {
         *control_flow = ControlFlow::Poll;
 
@@ -141,6 +142,7 @@ fn main() {
                     .expect("Failed to prepare frame");
                 let ui = imgui.frame();
 
+                // --- Actual drawing code ----------------------------------------------
                 {
                     let window = imgui::Window::new(im_str!("Hello implot"));
                     let window = if make_fullscreen {
@@ -195,6 +197,7 @@ fn main() {
                     implot::show_demo_window(&mut showing_demo);
                 }
 
+                // --- Post-drawing rendering code --------------------------------------
                 let mut encoder: wgpu::CommandEncoder =
                     device.create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });