found nice regressions for star colors / star sizes

This commit is contained in:
yuni 2024-03-21 02:35:16 +01:00
parent 6d98a0e459
commit 52e5b09ffa
2 changed files with 8 additions and 31 deletions

View file

@ -3,7 +3,7 @@ actor 300000 0 500000 jupiter
rotationy -1.40 rotationy -1.40
angularmomentum 0 0.0001 0 angularmomentum 0 0.0001 0
actor 2000 2000 0 asteroid1 actor 2000 0 0 asteroid1
scale 200 scale 200
actor -2300 10 0 pizzeria actor -2300 10 0 pizzeria

View file

@ -145,47 +145,24 @@ pub fn setup(
// Generate starmap // Generate starmap
let sphere_handle = meshes.add(Sphere::new(1.0)); let sphere_handle = meshes.add(Sphere::new(1.0));
for star in nature::STARS { for star in nature::STARS {
//let clr = {|c: f32| c * 0.01 * (brightness * 50.0).powf(1.2).clamp(0.1, 100000.0) };
//let clr = {|c: f32| c * 0.15 };
//let clr = {|c: f32| c * 1.78136 * c.ln() + 5.03726 };
//let clr = {|c: f32| c * 1.9293*c.powf(0.1382) };
//let clr = {|c: f32| c * 0.0431866*brightness*brightness - 0.688256*brightness + 2.90952 };
//let clr = {|c: f32| c * 0.0275015*mag*mag - 0.59251*mag + 2.93566 };
//let size = {|mag: f32| 10.0 * 8.0*mag*mag - 100.0*mag + 400.0 };
//let size = {|mag: f32| 10.0 * 8.0*mag*mag - 100.0*mag + 400.0 };
let mag = star[3]; let mag = star[3];
let clr = {|color: f32| let scale_color = {|color: f32|
if mag < -20.0 { if mag < -20.0 {
color * 13.0 // Sun color * 13.0f32 // Sun
} else if mag < 0.0 {
color * 5.0
} else if mag < 0.5 {
color * 4.2
} else if mag < 1.5 {
color * 3.5
} else if mag < 2.5 {
color * 2.0
} else if mag < 3.5 {
color * 1.0
} else { } else {
color * 0.15 color * (0.0659663 * mag * mag - 1.09862 * mag + 4.3)
} }
}; };
let size = {|mag: f32| let scale_size = {|mag: f32|
if mag < -20.0 { if mag < -20.0 {
40000.0f32 // Sun 40000.0f32 // Sun
} else if mag < 0.0 {
20000.0f32
} else if mag < 2.0 {
10000.0f32
} else { } else {
5000.0f32 1000.0 * (0.230299 * mag * mag - 3.09013 * mag + 15.1782)
} }
}; };
let (r, g, b) = nature::star_color_index_to_rgb(star[4]); let (r, g, b) = nature::star_color_index_to_rgb(star[4]);
let star_color_handle = materials.add(StandardMaterial { let star_color_handle = materials.add(StandardMaterial {
base_color: Color::rgb(clr(r), clr(g), clr(b)), base_color: Color::rgb(scale_color(r), scale_color(g), scale_color(b)),
//emissive: Color::rgb_linear(r*brightness, g*brightness, b*brightness),
unlit: true, unlit: true,
..default() ..default()
}); });
@ -200,7 +177,7 @@ pub fn setup(
dist * star[1], dist * star[1],
dist * star[2], dist * star[2],
) )
.with_scale(Vec3::splat(size(mag))), .with_scale(Vec3::splat(scale_size(mag))),
..default() ..default()
} }
)); ));