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refraction TEST

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Xonk
2023-05-09 19:08:34 -04:00
parent 82668ef211
commit 3b8cc5a19a
5 changed files with 84 additions and 112 deletions
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53
shaders/lib/volumetricClouds.glsl
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@ -46,31 +46,23 @@ float densityAtPos(in vec3 pos){
float cloudCov(in vec3 pos,vec3 samplePos){
// vec2 windshift2 = pow( max(MaxCumulusHeight - pos.y, 0.0) / 20,2) * vec2(1);
// windshift.x *= sin(frameTimeCounter);
// windshift.y *= -cos(frameTimeCounter);
float CloudLarge = texture2D(noisetex, (samplePos.xz + cloud_movement) / 5000 ).b;
vec2 windshift = pow( max(pos.y-CumulusHeight, 0.0) / 5,1.5) * vec2(1) * (CloudLarge*2-1.15);
float CloudSmall = texture2D(noisetex, (samplePos.xz - cloud_movement) / 500 ).r;
float coverage = abs(pow(CloudLarge,1)*2.0 - 1.2)*0.5 - (1.0-CloudSmall) + 0.3;
float Topshape = max(pos.y - (MaxCumulusHeight + CumulusHeight)*0.46, 0.0) / 200;
Topshape += max(exp((pos.y - MaxCumulusHeight) / 10.0 ), 0.0) ;
float FinalShape = DailyWeather_LowAltitude(coverage) - Topshape;
float coverage = abs(pow(CloudLarge,1)*2.0 - 1.2)*0.5 - (1.0-CloudSmall);
float FinalShape = DailyWeather_Cumulus(coverage) - Topshape;
// cap the top and bottom for reasons
float capbase = sqrt(max(CumulusHeight*1.05 - pos.y, 0.0)/50) ;
float captop = max(pos.y - MaxCumulusHeight, 0.0);
FinalShape = FinalShape - capbase - captop ;
FinalShape = max(FinalShape - capbase - captop, 0.0);
return max(FinalShape,0.0);
return FinalShape;
}
//Erode cloud with 3d Perlin-worley noise, actual cloud value
@ -114,8 +106,12 @@ float GetAltostratusDensity(vec3 pos){
float small = texture2D(noisetex, (pos.xz - cloud_movement)/10000. - vec2(-large,1-large)/5).b;
float shape = (small + pow((1.0-large),2.0))/2.0;
float Coverage; float Density;
DailyWeather_Alto(Coverage,Density);
shape = pow(max(shape + Alto_coverage - 0.5,0.0),2.0);
shape = pow(max(shape + Coverage - 0.5,0.0),2.0);
shape *= Density;
return shape;
}
@ -134,7 +130,8 @@ vec3 Cloud_lighting(
vec3 moonContribution,
float AmbientShadow,
int cloudType,
vec3 pos
vec3 pos,
float altoShadow
){
float coeeff = -30;
// float powder = 1.0 - exp((CloudShape*CloudShape) * -800);
@ -143,14 +140,20 @@ vec3 Cloud_lighting(
vec3 skyLighting = SkyColors;
#ifdef Altostratus
skyLighting += sunContributionMulti * 5.0 * exp(SunShadowing * -3) * clamp(Alto_coverage * (1-Alto_density),0,1);
float Coverage; float Density;
DailyWeather_Alto(Coverage,Density);
skyLighting += sunContributionMulti * exp(SunShadowing * -3) * clamp(Coverage * (1-Density),0,1);
// skyLighting += (sunContributionMulti * 5.0 * exp(SunShadowing * -3)) * exp(altoShadow * -0.1);
#endif
skyLighting *= exp(SkyShadowing * AmbientShadow * coeeff/2 ) * lesspowder ;
if(cloudType == 1){
coeeff = -3;
coeeff = -10;
skyLighting = SkyColors * exp(SkyShadowing * coeeff/15) * lesspowder;
}
@ -160,7 +163,7 @@ vec3 Cloud_lighting(
vec3 moonLighting = exp(MoonShadowing * coeeff / 3) * moonContribution * powder;
return skyLighting + moonLighting + sunLighting ;
// return sunLighting;
// return skyLighting;
}
//Mie phase function
@ -272,12 +275,12 @@ vec4 renderClouds(
#ifdef Altostratus
// cast a shadow from higher clouds onto lower clouds
vec3 HighAlt_shadowPos = progress_view + dV_Sun/abs(dV_Sun.y) * max(AltostratusHeight - progress_view.y,0.0);
float HighAlt_shadow = GetAltostratusDensity(HighAlt_shadowPos) * Alto_density ;
float HighAlt_shadow = GetAltostratusDensity(HighAlt_shadowPos);
Sunlight += HighAlt_shadow;
#endif
float ambientlightshadow = 1.0-clamp(exp((progress_view.y - (MaxCumulusHeight + CumulusHeight)*0.5) / 100.0),0.0,1.0);
vec3 S = Cloud_lighting(muE, cumulus*Cumulus_density, Sunlight, MoonLight, SkyColor, sunContribution, sunContributionMulti, moonContribution, ambientlightshadow, 0, progress_view);
vec3 S = Cloud_lighting(muE, cumulus*Cumulus_density, Sunlight, MoonLight, SkyColor, sunContribution, sunContributionMulti, moonContribution, ambientlightshadow, 0, progress_view, HighAlt_shadow);
vec3 Sint = (S - S * exp(-mult*muE)) / muE;
color += max(muE*Sint*total_extinction,0.0);
@ -294,7 +297,7 @@ vec4 renderClouds(
if (max(AltostratusHeight-cameraPosition.y,0.0)/max(normalize(dV_view).y,0.0) / 100000.0 < AltostratusHeight) {
vec3 progress_view_high = dV_view2 + cameraPosition + dV_view2/dV_view2.y * max(AltostratusHeight-cameraPosition.y,0.0);
float altostratus = GetAltostratusDensity(progress_view_high) * Alto_density;
float altostratus = GetAltostratusDensity(progress_view_high);
float Sunlight = 0.0;
float MoonLight = 0.0;
@ -302,10 +305,10 @@ vec4 renderClouds(
if(altostratus > 1e-5){
for (int j = 0; j < 2; j++){
vec3 shadowSamplePos_high = progress_view_high + dV_Sun * float(j+Dither.y);
float shadow = GetAltostratusDensity(shadowSamplePos_high) * Alto_density;
float shadow = GetAltostratusDensity(shadowSamplePos_high);
Sunlight += shadow;
}
vec3 S = Cloud_lighting(altostratus, altostratus, Sunlight, MoonLight, SkyColor, sunContribution, sunContributionMulti, moonContribution, 1, 1, progress_view_high);
vec3 S = Cloud_lighting(altostratus, altostratus, Sunlight, MoonLight, SkyColor, sunContribution, sunContributionMulti, moonContribution, 1, 1, progress_view_high, 0);
vec3 Sint = (S - S * exp(-20*altostratus)) / altostratus;
color += max(altostratus*Sint*total_extinction,0.0);
@ -339,7 +342,7 @@ float GetCloudShadow(vec3 eyePlayerPos){
#ifdef Altostratus
vec3 highShadowStart = playerPos + WsunVec/abs(WsunVec.y) * max(AltostratusHeight - playerPos.y,0.0);
shadow += GetAltostratusDensity(highShadowStart) * Alto_density;
shadow += GetAltostratusDensity(highShadowStart);
#endif
shadow = shadow/2.0; // perhaps i should average the 2 shadows being added....
@ -359,7 +362,7 @@ float GetCloudShadow_VLFOG(vec3 WorldPos){
#ifdef Altostratus
vec3 highShadowStart = WorldPos + WsunVec/abs(WsunVec.y) * max(AltostratusHeight - WorldPos.y,0.0);
shadow += GetAltostratusDensity(highShadowStart) * Alto_density;
shadow += GetAltostratusDensity(highShadowStart);
#endif
// shadow = shadow/2.0; // perhaps i should average the 2 shadows being added....