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FIX DOF and exposure. tweak fog phase. make cloud shadows not go crazy at low sun angles. adjust bloomy fog default value.

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Xonk
2023-10-23 17:15:56 -04:00
parent d26a29d1f2
commit a4f448987f
10 changed files with 56 additions and 132 deletions
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28
shaders/lib/overworld_fog.glsl
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@ -1,7 +1,4 @@
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
}
uniform float noPuddleAreas;
float densityAtPosFog(in vec3 pos){
@ -48,7 +45,22 @@ float cloudVol(in vec3 pos){
return CloudyFog + UniformFog + RainFog;
}
uniform bool inSpecialBiome;
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
}
float fogPhase(float lightPoint){
float linear = 1.0 - clamp(lightPoint*0.5+0.5,0.0,1.0);
float linear2 = 1.0 - clamp(lightPoint,0.0,1.0);
float exponential = exp2(pow(linear,0.3) * -15.0 ) * 1.5;
exponential += sqrt(exp2(sqrt(linear) * -12.5));
return exponential;
}
// uniform bool inSpecialBiome;
vec4 GetVolumetricFog(
vec3 viewPosition,
float dither,
@ -90,7 +102,8 @@ vec4 GetVolumetricFog(
float dL = length(dVWorld);
//Mie phase + somewhat simulates multiple scattering (Horizon zero down cloud approx)
float mie = phaseg(SdotV,0.7)*5.0 + 0.1;
// float mie = phaseg(SdotV,0.7)*5.0 + 0.1;
float mie = fogPhase(SdotV) * 5.0;
float rayL = phaseRayleigh(SdotV);
vec3 rC = vec3(fog_coefficientRayleighR*1e-6, fog_coefficientRayleighG*1e-5, fog_coefficientRayleighB*1e-5);
@ -178,7 +191,8 @@ vec4 GetVolumetricFog(
vec3 AtmosphericFog = skyCol0 * (rL*3.0 + m);// + (LightSourceColor * sh) * (rayL*rL*3.0 + m*mie);
vec3 vL0 = (AtmosphericFog + AmbientLight + DirectLight + Lightning) * lightleakfix;
// vec3 vL0 = DirectLight;
// vL0 = DirectLight;
// #if defined Cave_fog && defined TEST
// vL0 += cavefogCol;