-
-
Notifications
You must be signed in to change notification settings - Fork 7
/
dottedlines.rs
220 lines (219 loc) · 8.32 KB
/
dottedlines.rs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
use nannou::prelude::*;
use nannou_egui::{self, egui, Egui};
struct Model {
render_pipeline: wgpu::RenderPipeline,
vertex_buffer: wgpu::Buffer,
time_uniform: wgpu::Buffer,
time_bind_group: wgpu::BindGroup,
params_uniform: wgpu::Buffer,
params_bind_group: wgpu::BindGroup,
settings:Settings,
egui:Egui,
}
struct Settings {
lambda: f32,
theta: f32,
alpha:f32,
sigma: f32,
gamma:f32,
blue:f32,
show_ui: bool,
}
#[repr(C)]
#[derive(Clone, Copy)]
struct Vertex {
position: [f32; 2],
}
const VERTICES: [Vertex; 6] = [
Vertex { position: [-1.0, -1.0] },
Vertex { position: [ 1.0, -1.0] },
Vertex { position: [-1.0, 1.0] },
Vertex { position: [ 1.0, -1.0] },
Vertex { position: [ 1.0, 1.0] },
Vertex { position: [-1.0, 1.0] },
];
fn main() {
nannou::app(model)
.update(update)
.run();
}
fn update(app: &App, model: &mut Model, update: Update) {
let egui = &mut model.egui;
egui.set_elapsed_time(update.since_start);
let ctx = egui.begin_frame();
if app.keys.down.contains(&Key::H) {
model.settings.show_ui = !model.settings.show_ui;
}
egui::Window::new("Shader Settings").show(&ctx, |ui| {
ui.add(egui::Slider::new(&mut model.settings.lambda, 0.00001..=PI).text("l"));
ui.add(egui::Slider::new(&mut model.settings.theta, 0.0..=2.0*PI).text("t"));
ui.add(egui::Slider::new(&mut model.settings.alpha, -PI..=PI).text("a"));
ui.add(egui::Slider::new(&mut model.settings.sigma, 0.0..=1.0).text("r"));
ui.add(egui::Slider::new(&mut model.settings.gamma, 0.0..=1.0).text("g"));
ui.add(egui::Slider::new(&mut model.settings.blue, 0.0..=12.0).text("b"));
});
let params_data = [model.settings.lambda, model.settings.theta,model.settings.alpha, model.settings.sigma,model.settings.gamma,model.settings.blue];
let params_bytes = bytemuck::cast_slice(¶ms_data);
app.main_window().queue().write_buffer(&model.params_uniform, 0, ¶ms_bytes);
}
fn raw_window_event(app: &App, model: &mut Model, event: &nannou::winit::event::WindowEvent) {
model.egui.handle_raw_event(event);
if let nannou::winit::event::WindowEvent::KeyboardInput { input, .. } = event {
if let (Some(nannou::winit::event::VirtualKeyCode::F), true) =
(input.virtual_keycode, input.state == nannou::winit::event::ElementState::Pressed)
{
let window = app.main_window();
let fullscreen = window.fullscreen().is_some();
window.set_fullscreen(!fullscreen);
}
}
}
fn model(app: &App) -> Model {
let w_id = app.new_window().raw_event(raw_window_event).
size(512, 512).view(view).build().unwrap();
// The gpu device associated with the window's swapchain
let window = app.window(w_id).unwrap();
let device = window.device();
let format = Frame::TEXTURE_FORMAT;
let sample_count = window.msaa_samples();
let vs_desc = wgpu::include_wgsl!("../shaders/vs.wgsl");
let fs_desc = wgpu::include_wgsl!("../shaders/dottedlines.wgsl");
let vs_mod = device.create_shader_module(vs_desc);
let fs_mod = device.create_shader_module(fs_desc);
let vertices_bytes = vertices_as_bytes(&VERTICES[..]);
let usage = wgpu::BufferUsages::VERTEX;
let vertex_buffer = device.create_buffer_init(&BufferInitDescriptor {
label: None,
contents: vertices_bytes,
usage,
});
let time_bind_group_layout = device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
entries: &[
wgpu::BindGroupLayoutEntry {
binding: 0,
visibility: wgpu::ShaderStages::FRAGMENT,
ty: wgpu::BindingType::Buffer {
ty: wgpu::BufferBindingType::Uniform,
has_dynamic_offset: false,
min_binding_size: wgpu::BufferSize::new(std::mem::size_of::<f32>() as _),
},
count: None,
},
],
label: Some("time_bind_group_layout"),
});
let params_bind_group_layout = device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
label: Some("params_bind_group_layout"),
entries: &[wgpu::BindGroupLayoutEntry {
binding: 1,
visibility: wgpu::ShaderStages::FRAGMENT,
ty: wgpu::BindingType::Buffer {
ty: wgpu::BufferBindingType::Uniform,
has_dynamic_offset: false,
min_binding_size: wgpu::BufferSize::new((std::mem::size_of::<f32>() * 6) as _),
},
count: None,
}],
});
let pipeline_layout = device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
label: Some("Pipeline Layout"),
bind_group_layouts: &[¶ms_bind_group_layout, &time_bind_group_layout],
push_constant_ranges: &[],
});
let render_pipeline = wgpu::RenderPipelineBuilder::from_layout(&pipeline_layout, &vs_mod)
.fragment_shader(&fs_mod)
.color_format(format)
.add_vertex_buffer::<Vertex>(&wgpu::vertex_attr_array![0 => Float32x2])
.sample_count(sample_count)
.build(device);
let time_uniform = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("Time Uniform Buffer"),
size: std::mem::size_of::<f32>() as wgpu::BufferAddress,
usage: wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
});
let time_bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
layout: &time_bind_group_layout,
entries: &[
wgpu::BindGroupEntry {
binding: 0,
resource: time_uniform.as_entire_binding(),
},
],
label: Some("time_bind_group"),
});
let settings = Settings {
lambda: 0.06,
theta:1.5,
alpha:2.0,
sigma:0.03,
gamma:1.0,
blue:0.0,
show_ui:true,
};
let params_data = [settings.lambda, settings.theta, settings.alpha,settings.sigma,settings.gamma,settings.blue];
let params_bytes = bytemuck::cast_slice(¶ms_data);
let params_uniform = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
label: Some("Params Uniform"),
contents: params_bytes,
usage: wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST,
});
let params_bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
layout: ¶ms_bind_group_layout,
entries: &[
wgpu::BindGroupEntry {
binding: 1,
resource: params_uniform.as_entire_binding(),
},
],
label: Some("params_bind_group"),
});
let window = app.window(w_id).unwrap();
let egui = Egui::from_window(&window);
Model {
params_bind_group,
settings,
params_uniform,
egui,
vertex_buffer,
render_pipeline,
time_uniform,
time_bind_group,
}
}
fn view(app: &App, model: &Model, frame: Frame) {
let draw = app.draw();
draw.background().color(BLACK);
let time = app.time;
let time_bytes = time.to_ne_bytes();
let binding = app.main_window();
let queue = binding.queue();
{
let mut encoder = frame.command_encoder();
queue.write_buffer(&model.time_uniform, 0, &time_bytes);
let mut render_pass = wgpu::RenderPassBuilder::new()
.color_attachment(frame.texture_view(), |color| color)
.begin(&mut encoder);
render_pass.set_bind_group(0, &model.params_bind_group, &[]);
render_pass.set_bind_group(1, &model.time_bind_group, &[]);
render_pass.set_pipeline(&model.render_pipeline);
render_pass.set_vertex_buffer(0, model.vertex_buffer.slice(..));
let vertex_range = 0..VERTICES.len() as u32;
let instance_range = 0..1;
render_pass.draw(vertex_range, instance_range);
}
if model.settings.show_ui {
model.egui.draw_to_frame(&frame).unwrap();
}
if app.keys.down.contains(&Key::Space) {
let file_path = app
.project_path()
.expect("failed to locate project directory")
.join("frames")
.join(format!("{:0}.png", app.elapsed_frames()));
app.main_window().capture_frame(file_path);
}
}
fn vertices_as_bytes(data: &[Vertex]) -> &[u8] {
unsafe { wgpu::bytes::from_slice(data) }
}