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Cloud fog

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cloud fog?
This commit is contained in:
Xonk
2023-06-10 23:30:29 -04:00
parent 2e7d464b14
commit b8799363ed
15 changed files with 263 additions and 64 deletions
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37
shaders/lib/volumetricClouds.glsl
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@ -16,9 +16,11 @@
uniform float viewHeight;
uniform float viewWidth;
uniform sampler2D colortex4;//Skybox
#define WEATHERCLOUDS
#include "/lib/climate_settings.glsl"
float CumulusHeight = Cumulus_height;
@ -148,7 +150,7 @@ vec3 Cloud_lighting(
skyLighting += sunContributionMulti * exp(-SunShadowing) * clamp((1.0 - abs(pow(Density*4.0 - 1.1,4.0))) * Coverage,0,1) ;
#endif
skyLighting *= exp(SkyShadowing * AmbientShadow * coeeff/(2.0 - time) ) * lesspowder ;
skyLighting *= exp(SkyShadowing * AmbientShadow * coeeff/2.0 ) * lesspowder ;
if(cloudType == 1){
@ -259,7 +261,7 @@ vec4 renderClouds(
// IntersecTerrain = length(progress_view - cameraPosition) > lViewPosM;
// if(IntersecTerrain) break;
float cumulus = GetCumulusDensity(progress_view, cloudLoD);
float cumulus = GetCumulusDensity(progress_view, 1);
float alteredDensity = Cumulus_density * clamp(exp( (progress_view.y - (MaxCumulusHeight - 75)) / 9.0 ),0.0,1.0);
@ -287,7 +289,7 @@ vec4 renderClouds(
Sunlight += HighAlt_shadow;
#endif
float phase = PhaseHG(-SdotV, (1.0-cumulus));
// float phase = PhaseHG(-SdotV, (1.0-cumulus));
float ambientlightshadow = 1.0 - clamp(exp((progress_view.y - (MaxCumulusHeight - 50)) / 100.0),0.0,1.0) ;
@ -369,10 +371,10 @@ float GetCloudShadow_VLFOG(vec3 WorldPos){
float shadow = 0.0;
// assume a flat layer of cloud, and stretch the sampled density along the sunvector, starting from some vertical layer in the cloud.
#ifdef Cumulus
vec3 lowShadowStart = WorldPos + WsunVec/abs(WsunVec.y) * max((MaxCumulusHeight - 70) - WorldPos.y,0.0) ;
// #ifdef Cumulus
vec3 lowShadowStart = WorldPos + WsunVec/abs(WsunVec.y) * max((MaxCumulusHeight - 60) - WorldPos.y,0.0) ;
shadow += GetCumulusDensity(lowShadowStart,0)*Cumulus_density;
#endif
// #endif
#ifdef Altostratus
vec3 highShadowStart = WorldPos + WsunVec/abs(WsunVec.y) * max(AltostratusHeight - WorldPos.y,0.0);
@ -381,24 +383,23 @@ float GetCloudShadow_VLFOG(vec3 WorldPos){
// shadow = shadow/2.0; // perhaps i should average the 2 shadows being added....
shadow = clamp(exp(-shadow*15.0),0.0,1.0);
shadow = clamp(exp(-shadow*255.0),0.0,1.0);
// do not allow it to exist above the lowest cloud plane
shadow *= clamp(((MaxCumulusHeight + CumulusHeight)*0.435 - WorldPos.y)/100,0.0,1.0) ;
// shadow *= clamp(((MaxCumulusHeight + CumulusHeight)*0.435 - WorldPos.y)/100,0.0,1.0) ;
return shadow;
}
float GetAltoOcclusion(vec3 eyePlayerPos){
vec3 playerPos = eyePlayerPos + cameraPosition;
playerPos.y += 0.05;
float GetCloudShadow_occluson(vec3 WorldPos){
float shadow = 0.0;
vec3 lowShadowStart = playerPos + normalize(vec3(0,1,0)) * max((MaxCumulusHeight - 70) - playerPos.y,0.0) ;
shadow = GetCumulusDensity(lowShadowStart,0) * cloudDensity;
shadow = clamp(exp(shadow * -1),0.0,1.0);
return shadow;
#ifdef Cumulus
vec3 lowShadowStart = WorldPos + vec3(0,0.7,0) * max((MaxCumulusHeight - 60) - WorldPos.y,0.0) ;
shadow += GetCumulusDensity(lowShadowStart,1)*Cumulus_density;
shadow = clamp(exp(-shadow * 5),0.0,1.0);
#endif
return shadow;
}