pub const fn vec3(x: f32, y: f32, z: f32) -> Vec3Expand description
Creates a 3-dimensional vector.
Examples found in repository?
examples/tree.rs (line 12)
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fn tree(gl: &mut QuadGl, time: f64, deep: u32, angle: f32, tall: f32) {
if deep >= 8 {
return;
}
// we can use normal macroquad drawing API here
draw_rectangle(-0.01 / 2., 0., 0.01, tall, DARKGRAY);
// and we can also modify internal macroquad render state with "gl" reference
gl.push_model_matrix(glam::Mat4::from_translation(glam::vec3(0., tall, 0.)));
// right leaf
gl.push_model_matrix(glam::Mat4::from_rotation_z(angle + time.sin() as f32 * 0.1));
tree(gl, time, deep + 1, angle * 0.7, tall * 0.8);
gl.pop_model_matrix();
// left leaf
gl.push_model_matrix(glam::Mat4::from_rotation_z(
-angle - time.cos() as f32 * 0.1,
));
tree(gl, time, deep + 1, angle * 0.7, tall * 0.8);
gl.pop_model_matrix();
gl.pop_model_matrix();
}More examples
examples/3d.rs (line 14)
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async fn main() {
let rust_logo = load_texture("examples/rust.png").await.unwrap();
let ferris = load_texture("examples/ferris.png").await.unwrap();
loop {
clear_background(LIGHTGRAY);
// Going 3d!
set_camera(&Camera3D {
position: vec3(-20., 15., 0.),
up: vec3(0., 1., 0.),
target: vec3(0., 0., 0.),
..Default::default()
});
draw_grid(20, 1., BLACK, GRAY);
draw_cube_wires(vec3(0., 1., -6.), vec3(2., 2., 2.), DARKGREEN);
draw_cube_wires(vec3(0., 1., 6.), vec3(2., 2., 2.), DARKBLUE);
draw_cube_wires(vec3(2., 1., 2.), vec3(2., 2., 2.), YELLOW);
draw_plane(vec3(-8., 0., -8.), vec2(5., 5.), Some(&ferris), WHITE);
draw_cube(
vec3(-5., 1., -2.),
vec3(2., 2., 2.),
Some(&rust_logo),
WHITE,
);
draw_cube(vec3(-5., 1., 2.), vec3(2., 2., 2.), Some(&ferris), WHITE);
draw_cube(vec3(2., 0., -2.), vec3(0.4, 0.4, 0.4), None, BLACK);
draw_sphere(vec3(-8., 0., 0.), 1., None, BLUE);
// Back to screen space, render some text
set_default_camera();
draw_text("WELCOME TO 3D WORLD", 10.0, 20.0, 30.0, BLACK);
next_frame().await
}
}examples/first_person.rs (line 23)
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async fn main() {
let mut x = 0.0;
let mut switch = false;
let bounds = 8.0;
let world_up = vec3(0.0, 1.0, 0.0);
let mut yaw: f32 = 1.18;
let mut pitch: f32 = 0.0;
let mut front = vec3(
yaw.cos() * pitch.cos(),
pitch.sin(),
yaw.sin() * pitch.cos(),
)
.normalize();
let mut right = front.cross(world_up).normalize();
let mut up;
let mut position = vec3(0.0, 1.0, 0.0);
let mut last_mouse_position: Vec2 = mouse_position().into();
let mut grabbed = true;
set_cursor_grab(grabbed);
show_mouse(false);
loop {
let delta = get_frame_time();
if is_key_pressed(KeyCode::Escape) {
break;
}
if is_key_pressed(KeyCode::Tab) {
grabbed = !grabbed;
set_cursor_grab(grabbed);
show_mouse(!grabbed);
}
if is_key_down(KeyCode::Up) {
position += front * MOVE_SPEED;
}
if is_key_down(KeyCode::Down) {
position -= front * MOVE_SPEED;
}
if is_key_down(KeyCode::Left) {
position -= right * MOVE_SPEED;
}
if is_key_down(KeyCode::Right) {
position += right * MOVE_SPEED;
}
let mouse_position: Vec2 = mouse_position().into();
let mouse_delta = mouse_position - last_mouse_position;
last_mouse_position = mouse_position;
yaw += mouse_delta.x * delta * LOOK_SPEED;
pitch += mouse_delta.y * delta * -LOOK_SPEED;
pitch = if pitch > 1.5 { 1.5 } else { pitch };
pitch = if pitch < -1.5 { -1.5 } else { pitch };
front = vec3(
yaw.cos() * pitch.cos(),
pitch.sin(),
yaw.sin() * pitch.cos(),
)
.normalize();
right = front.cross(world_up).normalize();
up = right.cross(front).normalize();
x += if switch { 0.04 } else { -0.04 };
if x >= bounds || x <= -bounds {
switch = !switch;
}
clear_background(LIGHTGRAY);
// Going 3d!
set_camera(&Camera3D {
position: position,
up: up,
target: position + front,
..Default::default()
});
draw_grid(20, 1., BLACK, GRAY);
draw_line_3d(
vec3(x, 0.0, x),
vec3(5.0, 5.0, 5.0),
Color::new(1.0, 1.0, 0.0, 1.0),
);
draw_cube_wires(vec3(0., 1., -6.), vec3(2., 2., 2.), GREEN);
draw_cube_wires(vec3(0., 1., 6.), vec3(2., 2., 2.), BLUE);
draw_cube_wires(vec3(2., 1., 2.), vec3(2., 2., 2.), RED);
// Back to screen space, render some text
set_default_camera();
draw_text("First Person Camera", 10.0, 20.0, 30.0, BLACK);
draw_text(
format!("X: {} Y: {}", mouse_position.x, mouse_position.y).as_str(),
10.0,
48.0 + 18.0,
30.0,
BLACK,
);
draw_text(
format!("Press <TAB> to toggle mouse grab: {}", grabbed).as_str(),
10.0,
48.0 + 42.0,
30.0,
BLACK,
);
next_frame().await
}
}examples/shadertoy.rs (line 81)
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async fn main() {
let ferris = load_texture("examples/rust.png").await.unwrap();
let (color_picker_texture, color_picker_image) = color_picker_texture(200, 200);
let mut fragment_shader = DEFAULT_FRAGMENT_SHADER.to_string();
let mut vertex_shader = DEFAULT_VERTEX_SHADER.to_string();
let pipeline_params = PipelineParams {
depth_write: true,
depth_test: Comparison::LessOrEqual,
..Default::default()
};
let mut material = load_material(
ShaderSource::Glsl {
vertex: &vertex_shader,
fragment: &fragment_shader,
},
MaterialParams {
pipeline_params,
..Default::default()
},
)
.unwrap();
let mut error: Option<String> = None;
enum Mesh {
Sphere,
Cube,
Plane,
}
let mut mesh = Mesh::Sphere;
let mut camera = Camera3D {
position: vec3(-15., 15., -5.),
up: vec3(0., 1., 0.),
target: vec3(0., 5., -5.),
..Default::default()
};
let mut colorpicker_window = false;
let mut color_picking_uniform = None;
let mut new_uniform_window = false;
let mut new_uniform_name = String::new();
let mut uniforms: Vec<(String, Uniform)> = vec![];
loop {
clear_background(WHITE);
set_camera(&camera);
draw_grid(
20,
1.,
Color::new(0.55, 0.55, 0.55, 0.75),
Color::new(0.75, 0.75, 0.75, 0.75),
);
gl_use_material(&material);
match mesh {
Mesh::Plane => draw_plane(vec3(0., 2., 0.), vec2(5., 5.), Some(&ferris), WHITE),
Mesh::Sphere => draw_sphere(vec3(0., 6., 0.), 5., Some(&ferris), WHITE),
Mesh::Cube => draw_cube(vec3(0., 5., 0.), vec3(10., 10., 10.), Some(&ferris), WHITE),
}
gl_use_default_material();
set_default_camera();
let mut need_update = false;
widgets::Window::new(hash!(), vec2(20., 20.), vec2(470., 650.))
.label("Shader")
.ui(&mut *root_ui(), |ui| {
ui.label(None, "Camera: ");
ui.same_line(0.0);
if ui.button(None, "Ortho") {
camera.projection = Projection::Orthographics;
}
ui.same_line(0.0);
if ui.button(None, "Perspective") {
camera.projection = Projection::Perspective;
}
ui.label(None, "Mesh: ");
ui.same_line(0.0);
if ui.button(None, "Sphere") {
mesh = Mesh::Sphere;
}
ui.same_line(0.0);
if ui.button(None, "Cube") {
mesh = Mesh::Cube;
}
ui.same_line(0.0);
if ui.button(None, "Plane") {
mesh = Mesh::Plane;
}
ui.label(None, "Uniforms:");
ui.separator();
for (i, (name, uniform)) in uniforms.iter_mut().enumerate() {
ui.label(None, &format!("{}", name));
ui.same_line(120.0);
match uniform {
Uniform::Float1(x) => {
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(200.0, 19.0))
.filter_numbers()
.ui(ui, x);
if let Ok(x) = x.parse::<f32>() {
material.set_uniform(name, x);
}
}
Uniform::Float2(x, y) => {
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(99.0, 19.0))
.filter_numbers()
.ui(ui, x);
ui.same_line(0.0);
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(99.0, 19.0))
.filter_numbers()
.ui(ui, y);
if let (Ok(x), Ok(y)) = (x.parse::<f32>(), y.parse::<f32>()) {
material.set_uniform(name, (x, y));
}
}
Uniform::Float3(x, y, z) => {
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(65.0, 19.0))
.filter_numbers()
.ui(ui, x);
ui.same_line(0.0);
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(65.0, 19.0))
.filter_numbers()
.ui(ui, y);
ui.same_line(0.0);
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(65.0, 19.0))
.filter_numbers()
.ui(ui, z);
if let (Ok(x), Ok(y), Ok(z)) =
(x.parse::<f32>(), y.parse::<f32>(), z.parse::<f32>())
{
material.set_uniform(name, (x, y, z));
}
}
Uniform::Color(color) => {
let mut canvas = ui.canvas();
let cursor = canvas.cursor();
canvas.rect(
Rect::new(cursor.x + 20.0, cursor.y, 50.0, 18.0),
Color::new(0.2, 0.2, 0.2, 1.0),
Color::new(color.x, color.y, color.z, 1.0),
);
if ui.button(None, "change") {
colorpicker_window = true;
color_picking_uniform = Some(name.to_owned());
}
material.set_uniform(name, (color.x, color.y, color.z));
}
}
}
ui.separator();
if ui.button(None, "New uniform") {
new_uniform_window = true;
}
TreeNode::new(hash!(), "Fragment shader")
.init_unfolded()
.ui(ui, |ui| {
if ui.editbox(hash!(), vec2(440., 200.), &mut fragment_shader) {
need_update = true;
};
});
ui.tree_node(hash!(), "Vertex shader", |ui| {
if ui.editbox(hash!(), vec2(440., 300.), &mut vertex_shader) {
need_update = true;
};
});
if let Some(ref error) = error {
Label::new(error).multiline(14.0).ui(ui);
}
});
if new_uniform_window {
widgets::Window::new(hash!(), vec2(100., 100.), vec2(200., 80.))
.label("New uniform")
.ui(&mut *root_ui(), |ui| {
if ui.active_window_focused() == false {
new_uniform_window = false;
}
ui.input_text(hash!(), "Name", &mut new_uniform_name);
let uniform_type = ui.combo_box(
hash!(),
"Type",
&["Float1", "Float2", "Float3", "Color"],
None,
);
if ui.button(None, "Add") {
if new_uniform_name.is_empty() == false {
let uniform = match uniform_type {
0 => Uniform::Float1("0".to_string()),
1 => Uniform::Float2("0".to_string(), "0".to_string()),
2 => Uniform::Float3(
"0".to_string(),
"0".to_string(),
"0".to_string(),
),
3 => Uniform::Color(vec3(0.0, 0.0, 0.0)),
_ => unreachable!(),
};
uniforms.push((new_uniform_name.clone(), uniform));
new_uniform_name.clear();
need_update = true;
}
new_uniform_window = false;
}
ui.same_line(0.0);
if ui.button(None, "Cancel") {
new_uniform_window = false;
}
});
}
if colorpicker_window {
colorpicker_window &= widgets::Window::new(hash!(), vec2(140., 100.), vec2(210., 240.))
.label("Colorpicker")
.ui(&mut *root_ui(), |ui| {
if ui.active_window_focused() == false {
colorpicker_window = false;
}
let mut canvas = ui.canvas();
let cursor = canvas.cursor();
let mouse = mouse_position();
let x = mouse.0 as i32 - cursor.x as i32;
let y = mouse.1 as i32 - (cursor.y as i32 + 20);
let color = color_picker_image
.get_pixel(x.max(0).min(199) as u32, y.max(0).min(199) as u32);
canvas.rect(
Rect::new(cursor.x, cursor.y, 200.0, 18.0),
Color::new(0.0, 0.0, 0.0, 1.0),
Color::new(color.r, color.g, color.b, 1.0),
);
canvas.image(
Rect::new(cursor.x, cursor.y + 20.0, 200.0, 200.0),
&color_picker_texture,
);
if x >= 0 && x < 200 && y >= 0 && y < 200 {
canvas.rect(
Rect::new(mouse.0 - 3.5, mouse.1 - 3.5, 7.0, 7.0),
Color::new(0.3, 0.3, 0.3, 1.0),
Color::new(1.0, 1.0, 1.0, 1.0),
);
if is_mouse_button_down(MouseButton::Left) {
colorpicker_window = false;
let uniform_name = color_picking_uniform.take().unwrap();
uniforms
.iter_mut()
.find(|(name, _)| name == &uniform_name)
.unwrap()
.1 = Uniform::Color(vec3(color.r, color.g, color.b));
}
}
});
}
if need_update {
let uniforms = uniforms
.iter()
.map(|(name, uniform)| (name.clone(), uniform.uniform_type()))
.collect::<Vec<_>>();
match load_material(
ShaderSource::Glsl {
vertex: &vertex_shader,
fragment: &fragment_shader,
},
MaterialParams {
pipeline_params,
uniforms,
textures: vec![],
},
) {
Ok(new_material) => {
material = new_material;
error = None;
}
Err(err) => {
error = Some(format!("{:#?}", err));
}
}
}
next_frame().await
}
}