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atmosphere: keep Rayleigh sky behind terrain and make haze neutral

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Richard Zink committed 2026-10-12 16:50:07 +02:00
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commit 83bec11d61
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vendor/clouds3d.js
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@@ -368,8 +368,7 @@ var FRAG_SRC = [
'float dens = exp(-alt / Hs) / Hs;', 'float dens = exp(-alt / Hs) / Hs;',
'float dtau = uAtmoDensity * dens * step;', 'float dtau = uAtmoDensity * dens * step;',
'float transBefore = exp(-tau);', 'float transBefore = exp(-tau);',
'float grayMix = clamp(tau / max(0.01, uAtmoGrayTau), 0.0, 1.0);', 'vec3 atmoCol = uAtmoGrayColor;',
'vec3 atmoCol = mix(uAtmoBlueColor, uAtmoGrayColor, grayMix);',
'vec3 light = uSunColor * uSunInt * sunPhase + uMoonColor * uMoonInt * moonPhase * 2.0 + max(vec3(uSkyAmb), uStarAmb * vec3(0.7, 0.85, 1.0)) * 0.65;', 'vec3 light = uSunColor * uSunInt * sunPhase + uMoonColor * uMoonInt * moonPhase * 2.0 + max(vec3(uSkyAmb), uStarAmb * vec3(0.7, 0.85, 1.0)) * 0.65;',
'scatter += atmoCol * light * dtau * transBefore;', 'scatter += atmoCol * light * dtau * transBefore;',
'tau += dtau;', 'tau += dtau;',