custom_material/
custom_material.rs

1use macroquad::prelude::*;
2
3use macroquad::window::miniquad::*;
4
5const VERTEX: &str = r#"#version 100
6attribute vec3 position;
7attribute vec2 texcoord;
8
9varying lowp vec2 uv;
10
11uniform mat4 Model;
12uniform mat4 Projection;
13
14void main() {
15    gl_Position = Projection * Model * vec4(position, 1);
16    uv = texcoord;
17}"#;
18
19const FRAGMENT: &str = r#"#version 100
20varying lowp vec2 uv;
21
22uniform sampler2D Texture;
23uniform lowp vec4 test_color;
24
25void main() {
26    gl_FragColor = test_color * texture2D(Texture, uv);
27}"#;
28
29const FRAGMENT_WITH_ARRAY: &str = r#"#version 100
30varying lowp vec2 uv;
31
32uniform sampler2D Texture;
33uniform lowp vec4 test_color[10];
34
35void main() {
36    gl_FragColor = test_color[5] * texture2D(Texture, uv);
37}"#;
38
39#[macroquad::main("Shaders")]
40async fn main() {
41    let pipeline_params = PipelineParams {
42        color_blend: Some(BlendState::new(
43            Equation::Add,
44            BlendFactor::Value(BlendValue::SourceAlpha),
45            BlendFactor::OneMinusValue(BlendValue::SourceAlpha),
46        )),
47        ..Default::default()
48    };
49
50    let mat = load_material(
51        ShaderSource::Glsl {
52            vertex: VERTEX,
53            fragment: FRAGMENT,
54        },
55        MaterialParams {
56            uniforms: vec![UniformDesc::new("test_color", UniformType::Float4)],
57            pipeline_params,
58            ..Default::default()
59        },
60    )
61    .unwrap();
62
63    let mat_with_array = load_material(
64        ShaderSource::Glsl {
65            vertex: VERTEX,
66            fragment: FRAGMENT_WITH_ARRAY,
67        },
68        MaterialParams {
69            uniforms: vec![UniformDesc::array(
70                UniformDesc::new("test_color", UniformType::Float4),
71                10,
72            )],
73            pipeline_params,
74            ..Default::default()
75        },
76    )
77    .unwrap();
78
79    loop {
80        clear_background(GRAY);
81
82        gl_use_material(&mat);
83
84        mat.set_uniform("test_color", vec4(1., 0., 0., 1.));
85
86        draw_rectangle(50.0, 50.0, 100., 100., WHITE);
87
88        mat.set_uniform("test_color", vec4(0., 1., 0., 1.));
89        draw_rectangle(160.0, 50.0, 100., 100., WHITE);
90
91        mat.set_uniform("test_color", vec4(0., 0., 1., 1.));
92        draw_rectangle(270.0, 50.0, 100., 100., WHITE);
93
94        gl_use_material(&mat_with_array);
95        let mut colors: [Vec4; 10] = [vec4(0.0, 1.0, 0.0, 0.0); 10];
96        colors[5] = vec4(0.0, 1.0, 1.0, 1.0);
97        mat_with_array.set_uniform_array("test_color", &colors[..]);
98        draw_rectangle(50.0, 160.0, 100., 100., WHITE);
99
100        gl_use_default_material();
101
102        draw_rectangle(380.0, 50.0, 100., 100., YELLOW);
103
104        next_frame().await
105    }
106}
custom_material/custom_material.rs

custom_material/
custom_material.rs
