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dave: only re-render dave if he's moving

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we can be smarter about re-rendering in the future.
we really only need to re-render when he's moving
This commit is contained in:
William Casarin
2025-03-25 08:14:54 -07:00
parent 32f7d484f8
commit d3d6a0c805
1 changed files with 24 additions and 6 deletions
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30
crates/notedeck_dave/src/avatar.rs
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@@ -363,6 +363,15 @@ fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
}
}
#[inline]
fn apply_friction(val: f32, friction: f32, clamp: f32) -> f32 {
if val < clamp {
return 0.0;
} else {
return val * friction;
}
}
impl DaveAvatar {
pub fn render(&mut self, rect: Rect, ui: &mut egui::Ui) -> Response {
let response = ui.allocate_rect(rect, egui::Sense::drag());
@@ -381,10 +390,22 @@ impl DaveAvatar {
self.rotation = y_rotation.multiply(&x_rotation).multiply(&self.rotation);
} else {
// Continuous rotation - reduced speed and simplified axis
let x_rotation = Quaternion::from_axis_angle([1.0, 0.0, 0.0], self.rot_dir.y * 0.01);
let y_rotation = Quaternion::from_axis_angle([0.0, 1.0, 0.0], self.rot_dir.x * 0.01);
let friction = 0.95;
let clamp = 0.1;
self.rot_dir.x = apply_friction(self.rot_dir.x, friction, clamp);
self.rot_dir.y = apply_friction(self.rot_dir.y, friction, clamp);
self.rotation = y_rotation.multiply(&x_rotation).multiply(&self.rotation);
// we only need to render if we're still spinning
if self.rot_dir.x > clamp || self.rot_dir.y > clamp {
let x_rotation =
Quaternion::from_axis_angle([1.0, 0.0, 0.0], self.rot_dir.y * 0.01);
let y_rotation =
Quaternion::from_axis_angle([0.0, 1.0, 0.0], self.rot_dir.x * 0.01);
self.rotation = y_rotation.multiply(&x_rotation).multiply(&self.rotation);
ui.ctx().request_repaint();
}
}
// Create model matrix from rotation quaternion
@@ -404,9 +425,6 @@ impl DaveAvatar {
let mv_matrix = matrix_multiply(&view_matrix, &model_matrix);
let mvp_matrix = matrix_multiply(&projection, &mv_matrix);
// Request continuous rendering
ui.ctx().request_repaint();
// Add paint callback
ui.painter().add(egui_wgpu::Callback::new_paint_callback(
rect,