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Calculate star opacity with ambientLight instead of dayCycle #3045

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Merged
IntegratedQuantum merged 10 commits into from
Jun 20, 2026
Merged

Calculate star opacity with ambientLight instead of dayCycle #3045

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af20693
Calculate star opacity with ambientLight instead of dayCycle
AfmanS May 6, 2026
be5ae2a
Merge branch 'PixelGuys:master' into starOpacity
AfmanS May 11, 2026
f428e98
Create separate DayCycle struct
peppermintenunciate May 14, 2026
a54d731
Merge branch 'PixelGuys:master' into starOpacity
AfmanS May 14, 2026
8af6635
Merge branch 'PixelGuys:master' into starOpacity
AfmanS May 17, 2026
e718f87
Move dayCycle into world
AfmanS May 17, 2026
ae1c184
Merge branch 'PixelGuys:master' into starOpacity
AfmanS Jun 18, 2026
1578c89
Renames, change from fucntion to const, scope and comment
AfmanS Jun 18, 2026
9e9ca54
Fix mark
AfmanS Jun 18, 2026
f4ba4c4
fix dayStart and nightStart
AfmanS Jun 20, 2026
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10 changes: 1 addition & 9 deletions src/renderer.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -815,15 +815,7 @@ pub const Skybox = struct {

const time = game.world.?.gameTime.load(.monotonic);

var starOpacity: f32 = 0;
const dayTime = @abs(@mod(time, game.World.dayCycle) -% game.World.dayCycle/2);
if (dayTime < game.World.dayCycle/4 - game.World.dayCycle/16) {
starOpacity = 1;
} else if (dayTime > game.World.dayCycle/4 + game.World.dayCycle/16) {
starOpacity = 0;
} else {
starOpacity = 1 - @as(f32, @floatFromInt(dayTime - (game.World.dayCycle/4 - game.World.dayCycle/16)))/@as(f32, @floatFromInt(game.World.dayCycle/8));
}
const starOpacity: f32 = (1 - game.world.?.ambientLight)/0.9;

if (starOpacity != 0) {
starPipeline.bind(null);
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