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improved ambient light a little more in the nether. (thanks ambrosia). added auto exposure to the nether.

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Xonk
2023-07-30 00:26:44 -04:00
parent 40eca33f91
commit b11b795160
8 changed files with 161 additions and 610 deletions
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9
shaders/lib/nether_fog.glsl
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@ -58,13 +58,13 @@ vec4 GetVolumetricFog(
vec3 dV = fragposition-start;
vec3 dVWorld = (wpos-gbufferModelViewInverse[3].xyz);
float maxLength = min(length(dVWorld),far*25)/length(dVWorld);
float maxLength = min(length(dVWorld),far)/length(dVWorld);
dV *= maxLength;
dVWorld *= maxLength;
float dL = length(dVWorld);
vec3 fogcolor = (gl_Fog.color.rgb / max(dot(gl_Fog.color.rgb,vec3(0.3333)),0.01)) ;
vec3 fogcolor = (gl_Fog.color.rgb / max(dot(gl_Fog.color.rgb,vec3(0.3333)),0.05)) ;
float expFactor = 11.0;
for (int i=0;i<SAMPLES;i++) {
@ -75,7 +75,8 @@ vec4 GetVolumetricFog(
// do main lighting
float Density = cloudVol(progressW) * pow(exp(max(progressW.y-65,0.0) / -15),2);
float fireLight = cloudVol(progressW - vec3(0,1,0));
float fireLight = cloudVol(progressW - vec3(0,1,0)) * clamp(exp(max(30 - progressW.y,0.0) / -10.0),0,1);
vec3 vL0 = vec3(1.0,0.4,0.2) * exp(fireLight * -25) * exp(max(progressW.y-30,0.0) / -10) * 25;
vL0 += vec3(0.8,0.8,1.0) * (1.0 - exp(Density * -1)) / 10 ;
@ -85,8 +86,8 @@ vec4 GetVolumetricFog(
float Air = 0.01;
vec3 vL1 = fogcolor / 20.0;
vL += (vL0 - vL0*exp(-Density*dd*dL)) * absorbance;
vL += (vL1 - vL1*exp(-Air*dd*dL)) * absorbance;
vL += (vL0 - vL0*exp(-Density*dd*dL)) * absorbance;
absorbance *= exp(-(Density+Air)*dd*dL);