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Basic camera movement

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This commit is contained in:
numzero 2024-09-22 16:00:34 +03:00
parent 9c29ccb8ec
commit a40ba66209
1 changed files with 11 additions and 4 deletions
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15
src/bin/wireframe/main.rs
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@ -75,6 +75,7 @@ fn main() {
let vertex_buffer = VertexBuffer::new(&display, &shape).unwrap();
let mut cur_pos = vec2(0., 0.);
let mut cam_pos = DragCtl::new(Vec3::ZERO);
let mut cam_rot = DragCtl::new(Quat::IDENTITY);
#[allow(deprecated)]
@ -87,7 +88,8 @@ fn main() {
* std::f32::consts::SQRT_2;
let proj = make_proj_matrix(vec3(size.x, size.y, 2.), (0.125, 1024.125));
let view = Mat4::from_quat(cam_rot.state());
let view =
Mat4::from_quat(cam_rot.state()) * Mat4::from_translation(cam_pos.state());
let mut target = display.draw();
target.clear_color(0.0, 0.0, 0.2, 1.0);
@ -114,7 +116,8 @@ fn main() {
state,
button,
} => match button {
winit::event::MouseButton::Left => cam_rot.on_button(cur_pos, state),
winit::event::MouseButton::Left => cam_pos.on_button(cur_pos, state),
winit::event::MouseButton::Right => cam_rot.on_button(cur_pos, state),
_ => {}
},
@ -124,10 +127,14 @@ fn main() {
} => {
let size = window.inner_size();
let size = vec2(size.width as f32, size.height as f32);
cur_pos = vec2(position.x as f32, position.y as f32) / size;
cur_pos = vec2(position.x as f32, position.y as f32) / size.length();
cam_pos.on_move(cur_pos, |init, off| {
window.request_redraw();
init + 4. * (cam_rot.state().inverse() * vec3(off.x, -off.y, 0.))
});
cam_rot.on_move(cur_pos, |init, off| {
window.request_redraw();
Quat::from_euler(glam::EulerRot::YXZ, off.x, off.y, 0.) * init
Quat::from_euler(glam::EulerRot::YXZ, 5. * off.x, 5. * off.y, 0.) * init
});
}