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Improve transition when going into a cloud layer

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Merlin1809 committed 2025-04-21 17:46:49 +02:00
1 parent 5e092078d1
commit f2000ca44d
1 file changed
+6 -3
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shaders/lib/volumetricClouds.glsl
+6 -3
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@@ -464,13 +464,15 @@ vec4 GetVolumetricClouds(
float maxSamples = 15.0;
float minSamples = 10.0;
int samples = int(clamp(maxSamples / sqrt(exp2(NormPlayerPos.y)),0.0, minSamples));
int samples = int(clamp(maxSamples / sqrt(exp2(NormPlayerPos.y*2)),minSamples , maxSamples));
// int samples = 30;
///------- setup the ray
// vec3 cloudDist = vec3(1.0); cloudDist.xz = mix(vec2(255.0), vec2(5.0), clamp(maxHeight - cameraPosition.y,0.0,1.0));
vec3 cloudDist = vec3(1.0);
cloudDist.xz = mix(vec2(255.0), vec2(5.0), clamp(cameraPosition.y - minHeight,0.0,clamp((maxHeight-5) - cameraPosition.y ,0.0,1.0)));
float cloudMix = clamp(smoothstep(minHeight - 400.0, minHeight + 45.0, cameraPosition.y),0.0,clamp(smoothstep(maxHeight + 300.0, maxHeight - 60.0, cameraPosition.y) ,0.0,1.0));
cloudDist.xz = mix(vec2(255.0), vec2(6.2), cloudMix);
// vec3 rayDirection = NormPlayerPos.xyz * (cloudheight/abs(NormPlayerPos.y)/samples);
vec3 rayDirection = NormPlayerPos.xyz * (cloudheight/length(NormPlayerPos.xyz/cloudDist)/samples);
@@ -520,7 +522,8 @@ vec4 GetVolumetricClouds(
minHeight = CloudLayer1_height;
maxHeight = cloudheight + minHeight;
cloudDist.xz = mix(vec2(255.0), vec2(5.0), clamp(cameraPosition.y - minHeight,0.0,clamp((maxHeight-15) - cameraPosition.y ,0.0,1.0)));
cloudMix = clamp(smoothstep(minHeight - 400.0, minHeight + 45.0, cameraPosition.y),0.0,clamp(smoothstep(maxHeight + 300.0, maxHeight - 60.0, cameraPosition.y) ,0.0,1.0));
cloudDist.xz = mix(vec2(255.0), vec2(6.2), cloudMix);
rayDirection = NormPlayerPos.xyz * (cloudheight/length(NormPlayerPos.xyz/cloudDist)/samples);
rayPosition = getRayOrigin(rayDirection, cameraPosition, dither.y, minHeight, maxHeight);