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LIGHTNIGN, FLASHES TOO.. max cloudy fog height,

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Xonk
2023-06-22 21:00:42 -04:00
parent 90c92973b7
commit 84a3d8148e
10 changed files with 99 additions and 43 deletions
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35
shaders/lib/volumetricFog.glsl
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@ -1,3 +1,9 @@
vec3 normVec (vec3 vec){
return vec*inversesqrt(dot(vec,vec));
}
float phaseRayleigh(float cosTheta) {
const vec2 mul_add = vec2(0.1, 0.28) /acos(-1.0);
return cosTheta * mul_add.x + mul_add.y; // optimized version from [Elek09], divided by 4 pi for energy conservation
@ -30,7 +36,8 @@ float cloudVol(in vec3 pos){
// float CloudyFog = max( (fog_shape*2.0 - fog_eroded*0.5) - 1.2, max(fog_shape-0.8,0.0)) * mult;
float CloudyFog = max((fog_shape*1.2 - fog_eroded*0.2) - 0.75,0.0) ;
float heightlimit = exp2( -max((pos.y - SEA_LEVEL) / 25.,0.0));
float CloudyFog = max((fog_shape*1.2 - fog_eroded*0.2) - 0.75,0.0) * heightlimit ;
float UniformFog = exp2( -max((pos.y - SEA_LEVEL) / 25.,0.0));
@ -77,9 +84,20 @@ vec4 getVolumetricRays(
float mie = phaseg(SdotV,0.7)*5.0 + 1.0;
float rayL = phaseRayleigh(SdotV);
// Makes fog more white idk how to simulate it correctly
vec3 sunColor = lightCol.rgb / 80.0;
vec3 skyCol0 = AmbientColor / 150. * 5.; // * max(abs(WsunVec.y)/150.0,0.);
vec3 skyCol0 = AmbientColor / 150. * 5. ; // * max(abs(WsunVec.y)/150.0,0.);
vec3 lightningColor = vec3(0.5,0.8,1.0) * 25.0 * lightningFlash;
#ifdef ReflectedFog
lightningColor *= 0.01;
#endif
vec3 np3 = normVec(wpos);
float ambfogfade = clamp(exp(np3.y*1.5 - 1.5),0.0,1.0) * 2 ;
skyCol0 += lightningColor * ambfogfade;
#ifdef Biome_specific_environment
// recolor change sun and sky color to some color, but make sure luminance is preserved.
@ -149,7 +167,6 @@ vec4 getVolumetricRays(
}
/// really dumb lmao
vec4 InsideACloudFog(
vec3 fragpos,
@ -200,10 +217,20 @@ vec4 InsideACloudFog(
if(dV_Sun.y/shadowStep < -0.1) dV_Sun = -dV_Sun;
vec3 Fog_SkyCol = SkyColor;
vec3 Fog_SunCol = SunColor;
vec3 lightningColor = vec3(0.5,0.8,1.0) * 255.0 * lightningFlash;
#ifdef ReflectedFog
lightningColor *= 0.01;
#endif
vec3 np3 = normVec(wpos);
float ambfogfade = clamp(exp(np3.y*1.5 - 1.5),0.0,1.0) * 2 ;
Fog_SkyCol += (lightningColor/10) * ambfogfade;
float mieDay = phaseg(SdotV, 0.75) * 3.14;
@ -321,6 +348,8 @@ vec4 InsideACloudFog(
float ambientlightshadow = 1.0 - clamp(exp((progress_view.y - (MaxCumulusHeight - 50)) / 100.0),0.0,1.0) ;
vec3 S = Cloud_lighting(muE, cumulus*Cumulus_density, Sunlight, MoonLight, SkyColor, sunContribution, sunContributionMulti, moonContribution, ambientlightshadow, 0, progress_view, timing);
S += lightningColor * exp((1.0-cumulus) * -5) * ambientlightshadow;
vec3 Sint = (S - S * exp(-mult*muE)) / muE;
color += max(muE*Sint*total_extinction,0.0);