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add floodfill light propagation in vl fog. fix up nether and end shaders. tweaked shadows some. improved filtering for shadows/ssao, and VL fog. improved the "clouds intersect terrain" setting

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Xonk
2024-06-19 21:44:21 -04:00
parent afe1a2f30e
commit 56ad3b059d
33 changed files with 843 additions and 771 deletions
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207
shaders/dimensions/composite3.fsh
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@ -31,6 +31,7 @@ uniform sampler2D colortex10;
uniform sampler2D colortex11;
uniform sampler2D colortex12;
uniform sampler2D colortex13;
uniform sampler2D colortex14;
uniform sampler2D colortex15;
uniform vec2 texelSize;
@ -71,7 +72,7 @@ uniform float caveDetection;
#include "/lib/sky_gradient.glsl"
#include "/lib/lightning_stuff.glsl"
#include "/lib/climate_settings.glsl"
//#define CLOUDS_INTERSECT_TERRAIN
// #define CLOUDSHADOWSONLY
// #include "/lib/volumetricClouds.glsl"
#endif
@ -99,78 +100,6 @@ vec3 toScreenSpace(vec3 p) {
#include "/lib/DistantHorizons_projections.glsl"
float DH_ld(float dist) {
return (2.0 * dhNearPlane) / (dhFarPlane + dhNearPlane - dist * (dhFarPlane - dhNearPlane));
}
float DH_inv_ld (float lindepth){
return -((2.0*dhNearPlane/lindepth)-dhFarPlane-dhNearPlane)/(dhFarPlane-dhNearPlane);
}
float linearizeDepthFast(const in float depth, const in float near, const in float far) {
return (near * far) / (depth * (near - far) + far);
}
vec4 BilateralUpscale(sampler2D tex, sampler2D depth, vec2 coord, float referenceDepth){
ivec2 scaling = ivec2(1.0/VL_RENDER_RESOLUTION);
ivec2 posDepth = ivec2(coord*VL_RENDER_RESOLUTION) * scaling;
ivec2 posColor = ivec2(coord*VL_RENDER_RESOLUTION);
ivec2 pos = ivec2(gl_FragCoord.xy*texelSize + 1);
ivec2 getRadius[4] = ivec2[](
ivec2(-2,-2),
ivec2(-2, 0),
ivec2( 0, 0),
ivec2( 0,-2)
);
#ifdef DISTANT_HORIZONS
float diffThreshold = 0.01;
#else
float diffThreshold = zMults.x;
#endif
vec4 RESULT = vec4(0.0);
float SUM = 0.0;
for (int i = 0; i < 4; i++) {
ivec2 radius = getRadius[i];
#ifdef DISTANT_HORIZONS
float offsetDepth = sqrt(texelFetch2D(depth, posDepth + radius * scaling + pos * scaling,0).a/65000.0);
#else
float offsetDepth = ld(texelFetch2D(depth, posDepth + radius * scaling + pos * scaling, 0).r);
#endif
float EDGES = abs(offsetDepth - referenceDepth) < diffThreshold ? 1.0 : 1e-5;
RESULT += texelFetch2D(tex, posColor + radius + pos, 0) * EDGES;
SUM += EDGES;
}
// return vec4(1) * SUM;
return RESULT / SUM;
}
vec3 decode (vec2 encn){
vec3 n = vec3(0.0);
encn = encn * 2.0 - 1.0;
n.xy = abs(encn);
n.z = 1.0 - n.x - n.y;
n.xy = n.z <= 0.0 ? (1.0 - n.yx) * sign(encn) : encn;
return clamp(normalize(n.xyz),-1.0,1.0);
}
vec2 decodeVec2(float a){
const vec2 constant1 = 65535. / vec2( 256., 65536.);
const float constant2 = 256. / 255.;
return fract( a * constant1 ) * constant2 ;
}
vec3 worldToView(vec3 worldPos) {
vec4 pos = vec4(worldPos, 0.0);
pos = gbufferModelView * pos;
return pos.xyz;
}
float blueNoise(){
return fract(texelFetch2D(noisetex, ivec2(gl_FragCoord.xy)%512, 0).a + 1.0/1.6180339887 * frameCounter);
}
@ -186,6 +115,87 @@ float interleaved_gradientNoise(){
float noise = fract(52.9829189*fract(0.06711056*coord.x + 0.00583715*coord.y));
return noise;
}
float DH_ld(float dist) {
return (2.0 * dhNearPlane) / (dhFarPlane + dhNearPlane - dist * (dhFarPlane - dhNearPlane));
}
float DH_inv_ld (float lindepth){
return -((2.0*dhNearPlane/lindepth)-dhFarPlane-dhNearPlane)/(dhFarPlane-dhNearPlane);
}
float linearizeDepthFast(const in float depth, const in float near, const in float far) {
return (near * far) / (depth * (near - far) + far);
}
vec2 decodeVec2(float a){
const vec2 constant1 = 65535. / vec2( 256., 65536.);
const float constant2 = 256. / 255.;
return fract( a * constant1 ) * constant2 ;
}
vec4 BilateralUpscale(sampler2D tex, sampler2D tex2, sampler2D depth, vec2 coord, float referenceDepth, inout float CLOUDALPHA){
ivec2 scaling = ivec2(1.0/VL_RENDER_RESOLUTION);
ivec2 posDepth = ivec2(coord*VL_RENDER_RESOLUTION) * scaling;
ivec2 posColor = ivec2(coord*VL_RENDER_RESOLUTION);
ivec2 pos = ivec2(gl_FragCoord.xy*texelSize + 1);
ivec2 getRadius[5] = ivec2[](
ivec2(-1,-1),
ivec2( 1, 1),
ivec2(-1, 1),
ivec2( 1,-1),
ivec2( 0, 0)
);
#ifdef DISTANT_HORIZONS
float diffThreshold = 0.01;
#else
float diffThreshold = zMults.x;
#endif
vec4 RESULT = vec4(0.0);
float SUM = 0.0;
for (int i = 0; i < 5; i++) {
ivec2 radius = getRadius[i];
#ifdef DISTANT_HORIZONS
float offsetDepth = sqrt(texelFetch2D(depth, posDepth + radius * scaling + pos * scaling,0).a/65000.0);
#else
float offsetDepth = ld(texelFetch2D(depth, posDepth + radius * scaling + pos * scaling, 0).r);
#endif
float EDGES = abs(offsetDepth - referenceDepth) < diffThreshold ? 1.0 : 1e-5;
RESULT += texelFetch2D(tex, posColor + radius + pos, 0) * EDGES;
#if defined OVERWORLD_SHADER && defined CLOUDS_INTERSECT_TERRAIN
CLOUDALPHA += texelFetch2D(tex2, posColor + radius + pos, 0).x * EDGES;
#endif
SUM += EDGES;
}
#if defined OVERWORLD_SHADER && defined CLOUDS_INTERSECT_TERRAIN
CLOUDALPHA = CLOUDALPHA / SUM;
#endif
return RESULT / SUM;
}
vec3 decode (vec2 encn){
vec3 n = vec3(0.0);
encn = encn * 2.0 - 1.0;
n.xy = abs(encn);
n.z = 1.0 - n.x - n.y;
n.xy = n.z <= 0.0 ? (1.0 - n.yx) * sign(encn) : encn;
return clamp(normalize(n.xyz),-1.0,1.0);
}
vec3 worldToView(vec3 worldPos) {
vec4 pos = vec4(worldPos, 0.0);
pos = gbufferModelView * pos;
return pos.xyz;
}
vec3 viewToWorld(vec3 viewPosition) {
vec4 pos;
pos.xyz = viewPosition;
@ -293,14 +303,18 @@ void main() {
bool isEntity = abs(translucentMasks - 0.9) < 0.01 || isReflectiveEntity;
////// --------------- get volumetrics
#ifdef TOGGLE_VL_FOG
#ifdef DISTANT_HORIZONS
vec4 vl = BilateralUpscale(colortex0, colortex12, gl_FragCoord.xy - 1.5, sqrt(texture2D(colortex12,texcoord).a/65000.0));
#else
vec4 vl = BilateralUpscale(colortex0, depthtex0, gl_FragCoord.xy - 1.5, frDepth);
#endif
#if defined OVERWORLD_SHADER && defined CLOUDS_INTERSECT_TERRAIN
float cloudAlpha = 0.0;
#else
vec4 vl = vec4(0,0,0,1);
float cloudAlpha = 1.0;
#endif
#ifdef DISTANT_HORIZONS
vec4 vl = BilateralUpscale(colortex0, colortex14, colortex12, gl_FragCoord.xy - 1.5, sqrt(texture2D(colortex12,texcoord).a/65000.0), cloudAlpha);
#else
vec4 vl = BilateralUpscale(colortex0, colortex14, depthtex0, gl_FragCoord.xy - 1.5, frDepth,cloudAlpha);
#endif
float bloomyFogMult = 1.0;
@ -330,11 +344,9 @@ void main() {
fog *= exp(-10.0 * pow(clamp(np3.y,0.0,1.0)*4.0,2.0));
fog *= caveDetection;
fog *= (1.0-caveDetection);
if(swappedDepth >= 1.0 || isEyeInWater != 0) fog = 0.0;
#ifdef SKY_GROUND
vec3 borderFogColor = skyGroundColor;
@ -366,32 +378,33 @@ void main() {
#if defined OVERWORLD_SHADER && defined CAVE_FOG
if (isEyeInWater == 0 && eyeAltitude < 1500){
float cavefog = pow(1.0 - max(1.0 - linearDistance/far,0.0),2.0);
vec3 cavefogCol = vec3(CaveFogColor_R, CaveFogColor_G, CaveFogColor_B) * cavefog;
cavefogCol *= exp(-7.0*clamp(normalize(np3).y*0.5+0.5,0.0,1.0)) * 0.999 + 0.001;
vec3 cavefogCol = vec3(CaveFogColor_R, CaveFogColor_G, CaveFogColor_B);
#ifdef PER_BIOME_ENVIRONMENT
BiomeFogColor(cavefogCol);
#endif
cavefogCol *= pow(1.0 - max(1.0 - linearDistance/far,0.0),2.0);
cavefogCol *= exp(-7.0*clamp(normalize(np3).y*0.5+0.5,0.0,1.0)) * 0.999 + 0.001;
float skyhole = pow(clamp(1.0-pow(max(np3.y - 0.6,0.0)*5.0,2.0),0.0,1.0),2);
color.rgb = mix(color.rgb + cavefogCol * caveDetection, cavefogCol, z >= 1.0 ? skyhole * caveDetection : 0.0);
}
#endif
////// --------------- Distance fog for the end shader
#ifdef END_SHADER
if (isEyeInWater == 0){
vec3 hazeColor = vec3(0.3,0.75,1.0) * 0.3;
// create a point that "glows" but in worldspace.
// this is not correct but whatever
float CenterdotV = dot(normalize(vec3(0.0,400.0,0.0) - cameraPosition), normalize(p3 + cameraPosition));
float hazeDensity = clamp(1.0 - linearDistance / max(far, 32.0 * 24.0),0.0,1.0);
color.rgb = mix(hazeColor, color.rgb, hazeDensity) ;
}
float distanceFadeOff = pow(min(max(length(cameraPosition)-300.0,0.0)/100.0,1.0),2.0);
color.rgb += vec3(0.1,0.5,1.0) * (exp2(-10.0 * max(-CenterdotV*0.5+0.5,0.0)) + exp(-150.0 * max(-CenterdotV*0.5+0.5,0.0))) * distanceFadeOff;
#endif
////// --------------- underwater fog
if (isEyeInWater == 1){
float dirtAmount = Dirt_Amount + 0.01;
@ -421,9 +434,7 @@ void main() {
////// --------------- BLEND FOG INTO SCENE
//////////// apply VL fog over opaque and translucents
// color += skyGroundColor * (1.0 - pow(max(1.0 - linearDistance/far,0.0),3.0)) * rainStrength;
color *= vl.a;
color *= vl.a*cloudAlpha;
color += vl.rgb;
bloomyFogMult *= mix(vl.a,vl.a*0.5 + 0.5, rainStrength);
@ -462,7 +473,7 @@ void main() {
vl.a = 1.0;
}
#endif
gl_FragData[0].r = bloomyFogMult; // pass fog alpha so bloom can do bloomy fog
gl_FragData[1].rgb = clamp(color.rgb, 0.0,68000.0);
// gl_FragData[1].rgb = vec3(tangentNormals.xy,0.0) ;