forked from bevyengine/bevy
-
Notifications
You must be signed in to change notification settings - Fork 0
/
mod.rs
171 lines (149 loc) · 5.46 KB
/
mod.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
mod node;
pub use node::TonemappingNode;
use crate::fullscreen_vertex_shader::fullscreen_shader_vertex_state;
use bevy_app::prelude::*;
use bevy_asset::{load_internal_asset, HandleUntyped};
use bevy_ecs::prelude::*;
use bevy_ecs::query::QueryItem;
use bevy_reflect::{Reflect, TypeUuid};
use bevy_render::camera::Camera;
use bevy_render::extract_component::{ExtractComponent, ExtractComponentPlugin};
use bevy_render::renderer::RenderDevice;
use bevy_render::view::ViewTarget;
use bevy_render::{render_resource::*, RenderApp, RenderStage};
const TONEMAPPING_SHADER_HANDLE: HandleUntyped =
HandleUntyped::weak_from_u64(Shader::TYPE_UUID, 17015368199668024512);
const TONEMAPPING_SHARED_SHADER_HANDLE: HandleUntyped =
HandleUntyped::weak_from_u64(Shader::TYPE_UUID, 2499430578245347910);
pub struct TonemappingPlugin;
impl Plugin for TonemappingPlugin {
fn build(&self, app: &mut App) {
load_internal_asset!(
app,
TONEMAPPING_SHADER_HANDLE,
"tonemapping.wgsl",
Shader::from_wgsl
);
load_internal_asset!(
app,
TONEMAPPING_SHARED_SHADER_HANDLE,
"tonemapping_shared.wgsl",
Shader::from_wgsl
);
app.register_type::<Tonemapping>();
app.add_plugin(ExtractComponentPlugin::<Tonemapping>::default());
if let Ok(render_app) = app.get_sub_app_mut(RenderApp) {
render_app
.init_resource::<TonemappingPipeline>()
.init_resource::<SpecializedRenderPipelines<TonemappingPipeline>>()
.add_system_to_stage(RenderStage::Queue, queue_view_tonemapping_pipelines);
}
}
}
#[derive(Resource)]
pub struct TonemappingPipeline {
texture_bind_group: BindGroupLayout,
}
#[derive(Copy, Clone, PartialEq, Eq, Hash)]
pub struct TonemappingPipelineKey {
deband_dither: bool,
}
impl SpecializedRenderPipeline for TonemappingPipeline {
type Key = TonemappingPipelineKey;
fn specialize(&self, key: Self::Key) -> RenderPipelineDescriptor {
let mut shader_defs = Vec::new();
if key.deband_dither {
shader_defs.push("DEBAND_DITHER".to_string());
}
RenderPipelineDescriptor {
label: Some("tonemapping pipeline".into()),
layout: Some(vec![self.texture_bind_group.clone()]),
vertex: fullscreen_shader_vertex_state(),
fragment: Some(FragmentState {
shader: TONEMAPPING_SHADER_HANDLE.typed(),
shader_defs,
entry_point: "fragment".into(),
targets: vec![Some(ColorTargetState {
format: ViewTarget::TEXTURE_FORMAT_HDR,
blend: None,
write_mask: ColorWrites::ALL,
})],
}),
primitive: PrimitiveState::default(),
depth_stencil: None,
multisample: MultisampleState::default(),
}
}
}
impl FromWorld for TonemappingPipeline {
fn from_world(render_world: &mut World) -> Self {
let tonemap_texture_bind_group = render_world
.resource::<RenderDevice>()
.create_bind_group_layout(&BindGroupLayoutDescriptor {
label: Some("tonemapping_hdr_texture_bind_group_layout"),
entries: &[
BindGroupLayoutEntry {
binding: 0,
visibility: ShaderStages::FRAGMENT,
ty: BindingType::Texture {
sample_type: TextureSampleType::Float { filterable: false },
view_dimension: TextureViewDimension::D2,
multisampled: false,
},
count: None,
},
BindGroupLayoutEntry {
binding: 1,
visibility: ShaderStages::FRAGMENT,
ty: BindingType::Sampler(SamplerBindingType::NonFiltering),
count: None,
},
],
});
TonemappingPipeline {
texture_bind_group: tonemap_texture_bind_group,
}
}
}
#[derive(Component)]
pub struct ViewTonemappingPipeline(CachedRenderPipelineId);
pub fn queue_view_tonemapping_pipelines(
mut commands: Commands,
mut pipeline_cache: ResMut<PipelineCache>,
mut pipelines: ResMut<SpecializedRenderPipelines<TonemappingPipeline>>,
upscaling_pipeline: Res<TonemappingPipeline>,
view_targets: Query<(Entity, &Tonemapping)>,
) {
for (entity, tonemapping) in view_targets.iter() {
if let Tonemapping::Enabled { deband_dither } = tonemapping {
let key = TonemappingPipelineKey {
deband_dither: *deband_dither,
};
let pipeline = pipelines.specialize(&mut pipeline_cache, &upscaling_pipeline, key);
commands
.entity(entity)
.insert(ViewTonemappingPipeline(pipeline));
}
}
}
#[derive(Component, Clone, Reflect, Default)]
#[reflect(Component)]
pub enum Tonemapping {
#[default]
Disabled,
Enabled {
deband_dither: bool,
},
}
impl Tonemapping {
pub fn is_enabled(&self) -> bool {
matches!(self, Tonemapping::Enabled { .. })
}
}
impl ExtractComponent for Tonemapping {
type Query = &'static Self;
type Filter = With<Camera>;
fn extract_component(item: QueryItem<Self::Query>) -> Self {
item.clone()
}
}