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
use crate::*;
impl Default for Material {
#[inline(always)]
fn default() -> Material {
Material {
albedo: Vector4::new(1.0, 1.0, 1.0, 1.0),
roughness: 0.5,
reflectance: 0.25,
ambient_ratio: 0.02,
}
}
}
impl Material {
/// Creates a `UNIFORM` buffer of material.
///
/// The bind group provided by the instances holds this uniform buffer.
/// # Shader Examples
/// ```glsl
/// layout(set = 1, binding = 1) uniform Material {
/// vec4 albedo;
/// float roughness;
/// float reflectance;
/// float ambient_ratio;
/// };
/// ```
#[inline(always)]
pub fn buffer(&self, device: &Device) -> BufferHandler {
let material_data: [f32; 7] = [
self.albedo[0] as f32,
self.albedo[1] as f32,
self.albedo[2] as f32,
self.albedo[3] as f32,
self.roughness as f32,
self.reflectance as f32,
self.ambient_ratio as f32,
];
BufferHandler::from_slice(&material_data, device, BufferUsage::UNIFORM)
}
#[doc(hidden)]
#[inline(always)]
pub fn bgl_entry() -> PreBindGroupLayoutEntry {
PreBindGroupLayoutEntry {
visibility: ShaderStage::FRAGMENT,
ty: BindingType::UniformBuffer {
dynamic: false,
min_binding_size: None,
},
count: None,
}
}
}
impl Default for InstanceState {
#[inline(always)]
fn default() -> InstanceState {
InstanceState {
matrix: Matrix4::identity(),
material: Default::default(),
texture: None,
backface_culling: true,
}
}
}
impl InstanceState {
/// Creates a `UNIFORM` buffer of instance matrix.
///
/// The bind group provided by the instances holds this uniform buffer.
/// # Shader Examples
/// ```glsl
/// layout(set = 1, binding = 0) uniform ModelMatrix {
/// mat4 uniform_matrix;
/// };
/// ```
#[inline(always)]
pub fn matrix_buffer(&self, device: &Device) -> BufferHandler {
let matrix_data: [[f32; 4]; 4] = self.matrix.cast::<f32>().unwrap().into();
BufferHandler::from_slice(&matrix_data, device, BufferUsage::UNIFORM)
}
#[doc(hidden)]
#[inline(always)]
pub fn matrix_bgl_entry() -> PreBindGroupLayoutEntry {
PreBindGroupLayoutEntry {
visibility: ShaderStage::VERTEX | ShaderStage::FRAGMENT,
ty: BindingType::UniformBuffer {
dynamic: false,
min_binding_size: None,
},
count: None,
}
}
/// Creates a `UNIFORM` buffer of material.
///
/// The bind group provided by the instances holds this uniform buffer.
/// # Shader Examples
/// ```glsl
/// layout(set = 1, binding = 1) uniform Material {
/// vec4 albedo;
/// float roughness;
/// float reflectance;
/// float ambient_ratio;
/// };
/// ```
#[inline(always)]
pub fn material_buffer(&self, device: &Device) -> BufferHandler { self.material.buffer(device) }
#[doc(hidden)]
#[inline(always)]
pub fn material_bgl_entry() -> PreBindGroupLayoutEntry { Material::bgl_entry() }
/// Creates texture view and sampler of the instance's texture image.
///
/// The bind group provided by the instances holds this uniform buffer.
/// # Shader Examples
/// ```glsl
/// layout(set = 1, binding = 2) uniform texture2D texture_view;
/// layout(set = 1, binding = 3) uniform sampler texture_sampler;
/// ```
pub fn textureview_and_sampler(
&self,
device: &Device,
) -> (TextureView, Sampler) {
let texture = self.texture.as_ref().unwrap();
let view = texture.create_view(&Default::default());
let sampler = device.create_sampler(&SamplerDescriptor {
address_mode_u: AddressMode::ClampToEdge,
address_mode_v: AddressMode::ClampToEdge,
address_mode_w: AddressMode::ClampToEdge,
mag_filter: FilterMode::Linear,
min_filter: FilterMode::Nearest,
mipmap_filter: FilterMode::Nearest,
lod_min_clamp: -100.0,
lod_max_clamp: 100.0,
compare: None,
anisotropy_clamp: None,
label: None,
});
(view, sampler)
}
#[doc(hidden)]
#[inline(always)]
pub fn textureview_bgl_entry() -> PreBindGroupLayoutEntry {
PreBindGroupLayoutEntry {
visibility: ShaderStage::FRAGMENT,
ty: BindingType::SampledTexture {
dimension: TextureViewDimension::D2,
component_type: TextureComponentType::Uint,
multisampled: false,
},
count: None,
}
}
#[doc(hidden)]
#[inline(always)]
pub fn sampler_bgl_entry() -> PreBindGroupLayoutEntry {
PreBindGroupLayoutEntry {
visibility: ShaderStage::FRAGMENT,
ty: BindingType::Sampler { comparison: false },
count: None,
}
}
}