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fix compile error when floodfill gets enabled. fix compile error when TAA is turned off. fix compile error when aerochrome is turned on. re-added "render clouds as fog" setting. fix DOF using wrong depth buffer for CoC. fix cave fog when DH is enabled. fix block breaking effect not having alpha discard. changed "clouds intersect terrain" setting to work better on edges, but work worse everywhere else.

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Xonk
2024-06-12 20:56:14 -04:00
parent 4d2a30af6a
commit 04bbc79b89
17 changed files with 169 additions and 75 deletions
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81
shaders/lib/overworld_fog.glsl
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@ -148,6 +148,23 @@ vec4 GetVolumetricFog(
float atmosphereMult = 1.5;
#endif
#ifdef RAYMARCH_CLOUDS_WITH_FOG
vec3 SkyLightColor = AmbientColor;
vec3 LightSourceColor = LightColor;
#ifdef ambientLight_only
LightSourceColor = vec3(0.0);
#endif
vec3 dV_Sun = WsunVec;
float mieDay = phaseg(SdotV, 0.85) + phaseg(SdotV, 0.75);
float mieDayMulti = (phaseg(SdotV, 0.35) + phaseg(-SdotV, 0.35) * 0.5);
vec3 directScattering = LightSourceColor * mieDay * 3.14;
vec3 directMultiScattering = LightSourceColor * mieDayMulti * 3.14 * 2.0;
#endif
float expFactor = 11.0;
for (int i=0;i<SAMPLECOUNT;i++) {
float d = (pow(expFactor, float(i+dither.x)/float(SAMPLECOUNT))/expFactor - 1.0/expFactor)/(1-1.0/expFactor);
@ -179,6 +196,9 @@ vec4 GetVolumetricFog(
sh = vec3(shadow2D(shadow, shadowPos).x);
#endif
}
#ifdef RAYMARCH_CLOUDS_WITH_FOG
vec3 sh_forClouds = sh;
#endif
#ifdef VL_CLOUDS_SHADOWS
sh *= GetCloudShadow_VLFOG(progressW, WsunVec * lightCol.a);
@ -223,9 +243,66 @@ vec4 GetVolumetricFog(
color += (lighting - lighting * exp(-density*dd*dL))*absorbance;
absorbance *= max(exp(-density*dd*dL),0.0);
if (absorbance < 1e-5) break;
#ifdef RAYMARCH_CLOUDS_WITH_FOG
float otherlayer = max(progressW.y - (CloudLayer0_height+99.5), 0.0) > 0.0 ? 0.0 : 1.0;
float DUAL_MIN_HEIGHT = otherlayer > 0.0 ? CloudLayer0_height : CloudLayer1_height;
float DUAL_MAX_HEIGHT = DUAL_MIN_HEIGHT + 100.0;
float DUAL_DENSITY = otherlayer > 0.0 ? CloudLayer0_density : CloudLayer1_density;
if(clamp(progressW.y - DUAL_MAX_HEIGHT,0.0,1.0) < 1.0 && clamp(progressW.y - DUAL_MIN_HEIGHT,0.0,1.0) > 0.0){
#if defined CloudLayer1 && defined CloudLayer0
float upperLayerOcclusion = otherlayer > 0.0 ? GetCumulusDensity(1, progressW + vec3(0.0,1.0,0.0) * max((LAYER1_minHEIGHT+30) - progressW.y,0.0), 0, LAYER1_minHEIGHT, LAYER1_maxHEIGHT) : 0.0;
float skylightOcclusion = mix(1.0, (1.0 - LAYER1_DENSITY)*0.8 + 0.2, (1.0 - exp2(-5.0 * (upperLayerOcclusion*upperLayerOcclusion))));
#else
float skylightOcclusion = 1.0;
#endif
float DUAL_MIN_HEIGHT_2 = otherlayer > 0.0 ? CloudLayer0_height : CloudLayer1_height;
float DUAL_MAX_HEIGHT_2 = DUAL_MIN_HEIGHT + 100.0;
float cumulus = GetCumulusDensity(-1, progressW, 1, CloudLayer0_height, CloudLayer1_height);
float fadedDensity = DUAL_DENSITY * pow(clamp((progressW.y - DUAL_MIN_HEIGHT_2)/25,0.0,1.0),2.0);
float muE = cumulus*fadedDensity;
float directLight = 0.0;
if(muE > 1e-5){
for (int j=0; j < 3; j++){
// vec3 shadowSamplePos = progressW + dV_Sun * (0.1 + j * (0.1 + dither.y*0.05));
vec3 shadowSamplePos = progressW + dV_Sun * (20.0 + j * (20.0 + dither.y*20.0));
float shadow = GetCumulusDensity(-1, shadowSamplePos, 0, DUAL_MIN_HEIGHT, DUAL_MAX_HEIGHT) * DUAL_DENSITY;
directLight += shadow;
}
/// shadows cast from one layer to another
/// large cumulus -> small cumulus
#if defined CloudLayer1 && defined CloudLayer0
if(otherlayer > 0.0) directLight += LAYER1_DENSITY * 2.0 * GetCumulusDensity(1, progressW + dV_Sun/abs(dV_Sun.y) * max((LAYER1_minHEIGHT+35) - progressW.y,0.0), 0, LAYER1_minHEIGHT, LAYER1_maxHEIGHT);
#endif
// altostratus -> cumulus
#ifdef CloudLayer2
vec3 HighAlt_shadowPos = progressW + dV_Sun/abs(dV_Sun.y) * max(LAYER2_HEIGHT - progressW.y,0.0);
float HighAlt_shadow = GetAltostratusDensity(HighAlt_shadowPos) * CloudLayer2_density * (1.0-abs(WsunVec.y));
directLight += HighAlt_shadow;
#endif
float skyScatter = clamp(((DUAL_MAX_HEIGHT - progressW.y) / 100.0),0.0,1.0); // linear gradient from bottom to top of cloud layer
float distantfade = 1- exp( -10*pow(clamp(1.0 - length(progressW - cameraPosition)/(32*65),0.0,1.0),2));
vec3 cloudlighting = DoCloudLighting(DUAL_DENSITY * cumulus, SkyLightColor*skylightOcclusion, skyScatter, directLight, directScattering*sh_forClouds, directMultiScattering*sh_forClouds, 1);
color += max(cloudlighting - cloudlighting*exp(-muE*dd*dL_alternate),0.0) * absorbance;
absorbance *= max(exp(-muE*dd*dL_alternate),0.0);
}
}
#else
if (absorbance < 1e-5) break;
#endif
}
// return vec4(color, dot(absorbance,vec3(0.21, 0.72, 0.07)));
return vec4(color, absorbance);
}