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Refactor horizon fade calculation using celestialHorizonFade function

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This commit is contained in:
Victor Giers
2026-04-28 14:23:21 +02:00
parent 90c5a605b3
commit f71fb64d36
1 changed files with 10 additions and 2 deletions
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12
src/rendering/world-background-renderer.ts
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@@ -463,6 +463,14 @@ float glowMask(vec3 direction, vec3 lightDirection, float sizeDegrees, float rad
return smoothstep(outerCos, innerCos, alignment);
}
float celestialHorizonFade(float directionY) {
return smoothstep(
uHorizonHeight + ${CELESTIAL_BODY_HORIZON_FADE_START_OFFSET.toFixed(2)},
uHorizonHeight + ${CELESTIAL_BODY_HORIZON_FADE_END_OFFSET.toFixed(2)},
directionY
);
}
vec3 starTint(float seed) {
vec3 cool = vec3(0.58, 0.7, 1.0);
vec3 warm = vec3(1.0, 0.9, 0.64);
@@ -516,8 +524,8 @@ void main() {
float horizonMask = pow(clamp(1.0 - abs(shiftedY), 0.0, 1.0), 2.6);
skyColor += mix(uSkyBottomColor, vec3(1.0), 0.1 + uTwilightFactor * 0.18) * horizonMask * 0.04;
float sunHorizonFade = smoothstep(uHorizonHeight - 0.14, uHorizonHeight + 0.03, uSunDirection.y);
float moonHorizonFade = smoothstep(uHorizonHeight - 0.14, uHorizonHeight + 0.03, uMoonDirection.y);
float sunHorizonFade = celestialHorizonFade(uSunDirection.y);
float moonHorizonFade = celestialHorizonFade(uMoonDirection.y);
float sunDisc = uSunVisible * sunHorizonFade * discMask(direction, uSunDirection, uSunDiscSizeDegrees, 0.42);
float sunGlow = uSunVisible * sunHorizonFade * glowMask(direction, uSunDirection, uSunDiscSizeDegrees, 4.8);
float moonDisc = uMoonVisible * moonHorizonFade * discMask(direction, uMoonDirection, uMoonDiscSizeDegrees, 0.5);