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
221
222
223
224
225
226
227
228
229
230
231
232
|
use crate::{content::vfx::VfxMaterialId, renderer::srgb_to_linear, vfx::VfxManager};
#[repr(C)]
#[derive(Copy, Clone, bytemuck::Pod, bytemuck::Zeroable)]
struct RendererVfxMaterial {
color: [f32; 4],
length: f32,
_padding: [u32; 3],
}
#[repr(C)]
#[derive(Copy, Clone, bytemuck::Pod, bytemuck::Zeroable)]
struct RendererVfxLine {
a: [f32; 2],
b: [f32; 2],
width: f32,
material: u32,
alive_for: f32,
lifetime: f32,
}
fn create_vfx_line_buffer(device: &wgpu::Device, capacity: usize) -> wgpu::Buffer {
device.create_buffer(&wgpu::BufferDescriptor {
label: Some("VFX line buffer"),
size: (capacity * size_of::<RendererVfxLine>()) as u64,
usage: wgpu::BufferUsages::STORAGE | wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
})
}
pub struct VfxRendererState {
vfx_line_pipeline: wgpu::RenderPipeline,
vfx_line_buffer: wgpu::Buffer,
vfx_line_bind_group: wgpu::BindGroup,
vfx_line_capacity: usize,
vfx_lines_count: usize,
}
impl VfxRendererState {
pub fn update_buffers(
&mut self,
device: &wgpu::Device,
queue: &wgpu::Queue,
vfx_manager: &VfxManager,
) {
puffin::profile_function!();
// TODO could cull this to visible, maybe it's slower?
let vfx_lines: Vec<RendererVfxLine> = vfx_manager
.lines
.iter()
.map(|p| RendererVfxLine {
a: p.a.to_array(),
b: p.b.to_array(),
material: p.material as u32,
width: p.width,
alive_for: p.alive_for,
lifetime: p.lifetime,
})
.collect();
if vfx_lines.len() > self.vfx_line_capacity {
self.vfx_line_capacity = vfx_lines.len().next_power_of_two();
self.vfx_line_buffer = create_vfx_line_buffer(&device, self.vfx_line_capacity);
}
queue.write_buffer(&self.vfx_line_buffer, 0, bytemuck::cast_slice(&vfx_lines));
self.vfx_line_capacity = vfx_lines.len();
}
pub fn render(&self, render_pass: &mut wgpu::RenderPass) {
render_pass.set_pipeline(&self.vfx_line_pipeline);
render_pass.set_bind_group(0, &self.vfx_line_bind_group, &[]);
render_pass.draw(0..4, 0..self.vfx_lines_count as u32);
}
pub fn new(
device: &wgpu::Device,
queue: &wgpu::Queue,
surface_config: &wgpu::SurfaceConfiguration,
camera_uniform_buffer: &wgpu::Buffer,
) -> Self {
let mut vfx_material_palette = [RendererVfxMaterial {
color: [0.0f32; 4],
length: 0.0,
_padding: [0; 3],
}; VfxMaterialId::ALL.len()];
for material in VfxMaterialId::ALL {
let def = material.def();
let i = material as usize;
vfx_material_palette[i].color = [
srgb_to_linear(def.color.0),
srgb_to_linear(def.color.1),
srgb_to_linear(def.color.2),
def.color.3 as f32 / 255.0,
];
vfx_material_palette[i].length = def.length;
}
let vfx_material_palette_buffer = device.create_buffer(&wgpu::BufferDescriptor {
label: Some("VFX Material Palette buffer"),
size: size_of_val(&vfx_material_palette) as u64,
usage: wgpu::BufferUsages::STORAGE | wgpu::BufferUsages::COPY_DST,
mapped_at_creation: false,
});
queue.write_buffer(
&vfx_material_palette_buffer,
0,
bytemuck::cast_slice(&vfx_material_palette),
);
let vfx_line_bind_group_layout =
device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
label: None,
entries: &[
// camera uniform
wgpu::BindGroupLayoutEntry {
ty: wgpu::BindingType::Buffer {
ty: wgpu::BufferBindingType::Uniform,
has_dynamic_offset: false,
min_binding_size: None,
},
binding: 0,
count: None,
visibility: wgpu::ShaderStages::VERTEX,
},
// material palette
wgpu::BindGroupLayoutEntry {
ty: wgpu::BindingType::Buffer {
ty: wgpu::BufferBindingType::Storage { read_only: true },
has_dynamic_offset: false,
min_binding_size: None,
},
binding: 1,
count: None,
// don't need vertex here
visibility: wgpu::ShaderStages::VERTEX | wgpu::ShaderStages::FRAGMENT,
},
// instance buffer
wgpu::BindGroupLayoutEntry {
ty: wgpu::BindingType::Buffer {
ty: wgpu::BufferBindingType::Storage { read_only: true },
has_dynamic_offset: false,
min_binding_size: None,
},
binding: 2,
count: None,
visibility: wgpu::ShaderStages::VERTEX | wgpu::ShaderStages::FRAGMENT,
},
],
});
let vfx_line_shader = device.create_shader_module(wgpu::ShaderModuleDescriptor {
label: Some("VFX Line shader"),
source: wgpu::ShaderSource::Wgsl(include_str!("../shader/vfx_line.wgsl").into()),
});
let vfx_line_pipeline_layout =
device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
label: None,
immediate_size: 0,
bind_group_layouts: &[Some(&vfx_line_bind_group_layout)],
});
let vfx_line_pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
label: None,
layout: Some(&vfx_line_pipeline_layout),
vertex: wgpu::VertexState {
module: &vfx_line_shader,
entry_point: Some("vs_main"),
buffers: &[],
compilation_options: wgpu::PipelineCompilationOptions::default(),
},
fragment: Some(wgpu::FragmentState {
module: &vfx_line_shader,
entry_point: Some("fs_main"),
targets: &[Some(wgpu::ColorTargetState {
format: surface_config.format,
blend: Some(wgpu::BlendState::ALPHA_BLENDING),
write_mask: wgpu::ColorWrites::ALL,
})],
compilation_options: wgpu::PipelineCompilationOptions::default(),
}),
primitive: wgpu::PrimitiveState {
topology: wgpu::PrimitiveTopology::TriangleStrip,
strip_index_format: None,
front_face: wgpu::FrontFace::Ccw,
cull_mode: None,
polygon_mode: wgpu::PolygonMode::Fill,
unclipped_depth: false,
conservative: false,
},
depth_stencil: None,
multisample: wgpu::MultisampleState::default(),
multiview_mask: None,
cache: None,
});
let vfx_line_capacity = 512;
let vfx_line_buffer = create_vfx_line_buffer(&device, vfx_line_capacity);
let vfx_line_bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
label: None,
layout: &vfx_line_bind_group_layout,
entries: &[
wgpu::BindGroupEntry {
binding: 0,
resource: camera_uniform_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 1,
resource: vfx_material_palette_buffer.as_entire_binding(),
},
wgpu::BindGroupEntry {
binding: 2,
resource: vfx_line_buffer.as_entire_binding(),
},
],
});
VfxRendererState {
vfx_line_pipeline,
vfx_line_buffer,
vfx_line_bind_group,
vfx_line_capacity,
vfx_lines_count: 0,
}
}
}
|
