Function macroquad::camera::set_default_camera

source · 
pub fn set_default_camera()
Expand description

Reset default 2D camera mode.

Examples found in repository?
examples/camera.rs (line 20)
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async fn main() {
    loop {
        clear_background(LIGHTGRAY);

        // Render some primitives in camera space

        set_camera(&Camera2D {
            zoom: vec2(1., screen_width() / screen_height()),
            ..Default::default()
        });
        draw_line(-0.4, 0.4, -0.8, 0.9, 0.05, BLUE);
        draw_rectangle(-0.3, 0.3, 0.2, 0.2, GREEN);
        draw_circle(0., 0., 0.1, YELLOW);

        // Back to screen space, render some text

        set_default_camera();
        draw_text("HELLO", 30.0, 200.0, 30.0, BLACK);

        next_frame().await
    }
}
More examples
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examples/3d.rs (line 41)
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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/post_processing.rs (line 35)
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async fn main() {
    let render_target = render_target(320, 150);
    render_target.texture.set_filter(FilterMode::Nearest);

    let material = load_material(
        ShaderSource::Glsl {
            vertex: CRT_VERTEX_SHADER,
            fragment: CRT_FRAGMENT_SHADER,
        },
        Default::default(),
    )
    .unwrap();

    loop {
        // drawing to the texture

        // 0..100, 0..100 camera
        set_camera(&Camera2D {
            zoom: vec2(0.01, 0.01),
            target: vec2(0.0, 0.0),
            render_target: Some(render_target.clone()),
            ..Default::default()
        });

        clear_background(LIGHTGRAY);
        draw_line(-30.0, 45.0, 30.0, 45.0, 3.0, BLUE);
        draw_circle(-45.0, -35.0, 20.0, YELLOW);
        draw_circle(45.0, -35.0, 20.0, GREEN);

        // drawing to the screen

        set_default_camera();

        clear_background(WHITE);
        gl_use_material(&material);
        draw_texture_ex(
            &render_target.texture,
            0.,
            0.,
            WHITE,
            DrawTextureParams {
                dest_size: Some(vec2(screen_width(), screen_height())),
                ..Default::default()
            },
        );
        gl_use_default_material();

        next_frame().await;
    }
}
examples/raw_miniquad.rs (line 56)
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async fn main() {
    let stage = {
        let InternalGlContext {
            quad_context: ctx, ..
        } = unsafe { get_internal_gl() };

        raw_miniquad::Stage::new(ctx)
    };

    loop {
        clear_background(LIGHTGRAY);

        // Render some primitives in camera space

        set_camera(&Camera2D {
            zoom: vec2(1., screen_width() / screen_height()),
            ..Default::default()
        });
        draw_line(-0.4, 0.4, -0.8, 0.9, 0.05, BLUE);
        draw_rectangle(-0.3, 0.3, 0.2, 0.2, GREEN);
        draw_circle(0., 0., 0.1, YELLOW);

        {
            let mut gl = unsafe { get_internal_gl() };

            // Ensure that macroquad's shapes are not going to be lost
            gl.flush();

            let t = get_time();

            gl.quad_context.apply_pipeline(&stage.pipeline);

            gl.quad_context
                .begin_default_pass(miniquad::PassAction::Nothing);
            gl.quad_context.apply_bindings(&stage.bindings);

            for i in 0..10 {
                let t = t + i as f64 * 0.3;

                gl.quad_context
                    .apply_uniforms(miniquad::UniformsSource::table(
                        &raw_miniquad::shader::Uniforms {
                            offset: (t.sin() as f32 * 0.5, (t * 3.).cos() as f32 * 0.5),
                        },
                    ));
                gl.quad_context.draw(0, 6, 1);
            }
            gl.quad_context.end_render_pass();
        }

        // Back to screen space, render some text

        set_default_camera();
        draw_text("HELLO", 30.0, 200.0, 30.0, BLACK);

        next_frame().await
    }
}
examples/letterbox.rs (line 52)
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async fn main() {
    // Setup 'render_target', used to hold the rendering result so we can resize it
    let render_target = render_target(VIRTUAL_WIDTH as u32, VIRTUAL_HEIGHT as u32);
    render_target.texture.set_filter(FilterMode::Linear);

    // Setup camera for the virtual screen, that will render to 'render_target'
    let mut render_target_cam =
        Camera2D::from_display_rect(Rect::new(0., 0., VIRTUAL_WIDTH, VIRTUAL_HEIGHT));
    render_target_cam.render_target = Some(render_target.clone());

    loop {
        // Get required scaling value
        let scale: f32 = f32::min(
            screen_width() / VIRTUAL_WIDTH,
            screen_height() / VIRTUAL_HEIGHT,
        );

        // Mouse position in the virtual screen
        let virtual_mouse_pos = Vec2 {
            x: (mouse_position().0 - (screen_width() - (VIRTUAL_WIDTH * scale)) * 0.5) / scale,
            y: (mouse_position().1 - (screen_height() - (VIRTUAL_HEIGHT * scale)) * 0.5) / scale,
        };

        // ------------------------------------------------------------------------
        // Begin drawing the virtual screen to 'render_target'
        // ------------------------------------------------------------------------
        set_camera(&render_target_cam);

        clear_background(LIGHTGRAY);

        draw_text("Hello Letterbox", 20.0, 20.0, 30.0, DARKGRAY);
        draw_circle(VIRTUAL_WIDTH / 2.0 - 65.0, VIRTUAL_HEIGHT / 2.0, 35.0, RED);
        draw_circle(VIRTUAL_WIDTH / 2.0 + 65.0, VIRTUAL_HEIGHT / 2.0, 35.0, BLUE);
        draw_circle(
            VIRTUAL_WIDTH / 2.0,
            VIRTUAL_HEIGHT / 2.0 - 65.0,
            35.0,
            YELLOW,
        );

        draw_circle(virtual_mouse_pos.x, virtual_mouse_pos.y, 15.0, BLACK);

        // ------------------------------------------------------------------------
        // Begin drawing the window screen
        // ------------------------------------------------------------------------
        set_default_camera();

        clear_background(BLACK); // Will be the letterbox color

        // Draw 'render_target' to window screen, porperly scaled and letterboxed
        draw_texture_ex(
            &render_target.texture,
            (screen_width() - (VIRTUAL_WIDTH * scale)) * 0.5,
            (screen_height() - (VIRTUAL_HEIGHT * scale)) * 0.5,
            WHITE,
            DrawTextureParams {
                dest_size: Some(vec2(VIRTUAL_WIDTH * scale, VIRTUAL_HEIGHT * scale)),
                flip_y: true, // Must flip y otherwise 'render_target' will be upside down
                ..Default::default()
            },
        );

        next_frame().await;
    }
}
examples/first_person.rs (line 118)
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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
    }
}
Additional examples can be found in: