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removed the "cloud cradle" on the horizon. added fake rayleigh scattering for distant clouds. fixed issue where ambient SSS didnt adjust with ambient brightness. added some requested lights to .properties files. added a "original chocapic sky" misc option. removed stonger sunlight sky absorbtion. tweaked border fog and made it on by default

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Xonk
2023-12-31 16:51:35 -05:00
parent d6a83f300c
commit f47e212d86
11 changed files with 81 additions and 41 deletions
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33
shaders/lib/volumetricClouds.glsl
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@ -52,10 +52,10 @@ float cloudCov(in vec3 pos, vec3 samplePos, float minHeight, float maxHeight){
vec2 SampleCoords0 = (samplePos.xz + cloud_movement) / 5000;
vec2 SampleCoords1 = (samplePos.xz - cloud_movement) / 500;
float thedistance = 1.0-clamp(1.0-length((pos-cameraPosition).xz)/15000,0,1);
// float thedistance = 1.0-clamp(1.0-length((pos-cameraPosition).xz)/15000,0,1);
float heightRelativeToClouds = clamp(1.0 - max(cameraPosition.y - maxHeight,0.0) / 200.0 ,0.0,1.0);
thedistance = mix(0.0, thedistance, heightRelativeToClouds);
// float heightRelativeToClouds = clamp(1.0 - max(cameraPosition.y - maxHeight,0.0) / 200.0 ,0.0,1.0);
// thedistance = mix(0.0, thedistance, heightRelativeToClouds);
/// when the coordinates reach a certain height, alter the sample coordinates
if(max(pos.y - (maxHeight + 80),0.0) > 0.0){
@ -63,11 +63,11 @@ float cloudCov(in vec3 pos, vec3 samplePos, float minHeight, float maxHeight){
SampleCoords1 = -( (samplePos.zx - cloud_movement*2) / 1500);
}
float CloudSmall = texture2D(noisetex, SampleCoords1 ).r + thedistance;
float CloudLarge = texture2D(noisetex, SampleCoords0 ).b + thedistance;
float CloudSmall = texture2D(noisetex, SampleCoords1 ).r;
float CloudLarge = texture2D(noisetex, SampleCoords0 ).b;
float coverage = abs(pow(CloudLarge,1)*2.0 - 1.2)*0.5 - (1.0-CloudSmall);
float coverage = abs(CloudLarge*2.0 - 1.2)*0.5 - (1.0-CloudSmall);
float FirstLayerCoverage = DailyWeather_Cumulus(coverage);
@ -184,7 +184,10 @@ vec3 DoCloudLighting(
vec3 skyLight = skyLightCol;
skyLight *= mix(1.0, exp2((skyScatter*skyScatter) * densityFaded * -35.0) * lesspowder, distantfog);
float skyLightShading = exp2((skyScatter*skyScatter) * densityFaded * -35.0) * lesspowder;
// float skyLightShading = exp(skyScatter * densityFaded * -30/2.0 ) * lesspowder;
skyLight *= mix(1.0, skyLightShading, distantfog);
vec3 sunLight = exp(sunShadows * -15 + powder ) * sunScatter;
sunLight += exp(sunShadows * -3) * sunMultiScatter * (powder*0.7+0.3);
@ -258,9 +261,19 @@ vec4 renderClouds(
float startFlip = mix(max(cameraPosition.y - MaxHeight_0 - 200,0.0), max(MinHeight_0 - cameraPosition.y,0), clamp(dV_view.y,0,1));
vec3 progress_view = dV_view*Dither.y + cameraPosition + dV_view/abs(dV_view.y) * startFlip;
// use this to blend into the atmosphere's ground.
vec3 forg = normalize(dV_view);
float distantfog = max(1.0 - clamp(exp2(pow(abs(forg.y),1.5) * -35.0),0.0,1.0),0.0);
// terrible fake rayleigh scattering
vec3 rC = vec3(sky_coefficientRayleighR*1e-6, sky_coefficientRayleighG*1e-5, sky_coefficientRayleighB*1e-5)*3;
float atmosphere = exp(abs(forg.y) * -5.0);
vec3 scatter = exp(-10000.0 * rC * atmosphere) * distantfog;
directScattering *= scatter;
directMultiScattering *= scatter;
sunIndirectScattering *= scatter;
#ifdef Cumulus
for(int i = 0; i < maxIT_clouds; i++) {
// determine the base of each cloud layer
@ -269,7 +282,7 @@ vec4 renderClouds(
float cumulus = GetCumulusDensity(progress_view, 1, MinHeight_0, MaxHeight_0);
float fadedDensity = Cumulus_density * clamp(exp( (progress_view.y - (CloudBaseHeights - 70)) / 9.0 ),0.0,1.0);
float fadedDensity = Cumulus_density * clamp(exp( (progress_view.y - (CloudBaseHeights - 75)) / 9.0 ),0.0,1.0);
if(cumulus > 1e-5){
float muE = cumulus*fadedDensity;
@ -280,7 +293,7 @@ vec4 renderClouds(
vec3 shadowSamplePos = progress_view + dV_Sun * (0.1 + j * (0.1 + Dither.x*0.05));
float shadow = GetCumulusDensity(shadowSamplePos, 0, MinHeight_0, MaxHeight_0) * Cumulus_density;
directLight += shadow;
directLight += shadow;// / (1 + j);
}
if(max(progress_view.y - MaxHeight_1 + 50,0.0) < 1.0) directLight += Cumulus_density * 2.0 * GetCumulusDensity(progress_view + dV_Sun/abs(dV_Sun.y) * max((MaxHeight_1 - 30.0) - progress_view.y,0.0), 0, MinHeight_0, MaxHeight_0);