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fix: replace HSV df_fade_color with exact stacked blue compositing

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popertots
2026-03-20 14:17:19 +00:00
parent f9a74ed432
commit 6fbfb10e48
1 changed files with 12 additions and 2 deletions
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src/world/tiles/tilemap_chunk.rs
+12 -2
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@@ -86,8 +86,18 @@ fn df_fade_color(z_diff: i32) -> Color {
if z_diff <= 0 { if z_diff <= 0 {
return Color::WHITE; return Color::WHITE;
} }
let saturation = (z_diff as f32 / 8.0).clamp(0.0, 1.0); let n = (z_diff as f32).min(8_f32);
Color::hsv(194.7, saturation, 1.0 - saturation / 2.0) let overlay_r = 133_f32 / 255_f32;
let overlay_g = 167_f32 / 255_f32;
let overlay_b = 178_f32 / 255_f32;
let layer_alpha = 41_f32 / 255_f32;
let acc_alpha = 1_f32 - (1_f32 - layer_alpha).powf(n);
let inv = 1_f32 - acc_alpha;
Color::srgb(
overlay_r * acc_alpha + inv,
overlay_g * acc_alpha + inv,
overlay_b * acc_alpha + inv,
)
} }
fn is_tile_visible_at_z(tile_data: &FloorTileData, z_index: usize) -> bool { fn is_tile_visible_at_z(tile_data: &FloorTileData, z_index: usize) -> bool {