mirror of
https://github.com/X0nk/Bliss-Shader.git
synced 2024-12-23 01:59:39 +08:00
399 lines
13 KiB
GLSL
399 lines
13 KiB
GLSL
#include "/lib/settings.glsl"
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// #if defined END_SHADER || defined NETHER_SHADER
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#undef IS_LPV_ENABLED
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// #endif
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#ifndef OVERWORLD_SHADER
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uniform float nightVision;
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#endif
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flat varying vec4 lightCol;
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flat varying vec3 averageSkyCol;
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flat varying vec3 averageSkyCol_Clouds;
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flat varying float exposure;
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// uniform int dhRenderDistance;
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uniform sampler2D noisetex;
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uniform sampler2D depthtex0;
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uniform sampler2D depthtex1;
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#ifdef DISTANT_HORIZONS
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uniform sampler2D dhDepthTex;
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uniform sampler2D dhDepthTex1;
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#endif
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uniform sampler2D colortex2;
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uniform sampler2D colortex3;
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// uniform sampler2D colortex4;
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uniform sampler2D colortex6;
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uniform sampler2D colortex7;
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uniform sampler2D colortex11;
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uniform sampler2D colortex14;
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flat varying vec3 WsunVec;
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uniform vec3 sunVec;
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uniform float sunElevation;
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// uniform float far;
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uniform float dhFarPlane;
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uniform float dhNearPlane;
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uniform float near;
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uniform int frameCounter;
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uniform float frameTimeCounter;
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// varying vec2 texcoord;
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uniform vec2 texelSize;
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// flat varying vec2 TAA_Offset;
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uniform int isEyeInWater;
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uniform float rainStrength;
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uniform ivec2 eyeBrightnessSmooth;
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uniform float eyeAltitude;
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uniform float caveDetection;
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#define DHVLFOG
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#define diagonal3(m) vec3((m)[0].x, (m)[1].y, m[2].z)
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#define projMAD(m, v) (diagonal3(m) * (v) + (m)[3].xyz)
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#include "/lib/color_transforms.glsl"
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#include "/lib/color_dither.glsl"
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#include "/lib/projections.glsl"
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#include "/lib/res_params.glsl"
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#include "/lib/sky_gradient.glsl"
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#include "/lib/Shadow_Params.glsl"
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#include "/lib/waterBump.glsl"
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#include "/lib/DistantHorizons_projections.glsl"
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float DH_ld(float dist) {
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return (2.0 * near) / (dhFarPlane + dhNearPlane - dist * (dhFarPlane - dhNearPlane));
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}
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float DH_inv_ld (float lindepth){
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return -((2.0*dhNearPlane/lindepth)-dhFarPlane-dhNearPlane)/(dhFarPlane-dhNearPlane);
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}
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float linearizeDepthFast(const in float depth, const in float near, const in float far) {
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return (near * far) / (depth * (near - far) + far);
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}
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#ifdef OVERWORLD_SHADER
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const bool shadowHardwareFiltering = true;
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uniform sampler2DShadow shadow;
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#ifdef TRANSLUCENT_COLORED_SHADOWS
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uniform sampler2D shadowcolor0;
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uniform sampler2DShadow shadowtex0;
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uniform sampler2DShadow shadowtex1;
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#endif
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flat varying vec3 refractedSunVec;
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#define TIMEOFDAYFOG
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#include "/lib/lightning_stuff.glsl"
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#define CLOUDS_INTERSECT_TERRAIN
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// #define CLOUDSHADOWSONLY
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#include "/lib/volumetricClouds.glsl"
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#include "/lib/overworld_fog.glsl"
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#endif
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#ifdef NETHER_SHADER
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uniform sampler2D colortex4;
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#include "/lib/nether_fog.glsl"
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#endif
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#ifdef END_SHADER
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uniform sampler2D colortex4;
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#include "/lib/end_fog.glsl"
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#endif
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#include "/lib/diffuse_lighting.glsl"
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#define fsign(a) (clamp((a)*1e35,0.,1.)*2.-1.)
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float interleaved_gradientNoise(){
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return fract(52.9829189*fract(0.06711056*gl_FragCoord.x + 0.00583715*gl_FragCoord.y)+ 1.0/1.6180339887 * frameCounter);
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}
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float blueNoise(){
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return fract(texelFetch2D(noisetex, ivec2(gl_FragCoord.xy)%512, 0).a+ 1.0/1.6180339887 * frameCounter );
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}
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float R2_dither(){
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#ifdef TAA
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vec2 coord = gl_FragCoord.xy + (frameCounter%40000) * 2.0;
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#else
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vec2 coord = gl_FragCoord.xy;
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#endif
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vec2 alpha = vec2(0.75487765, 0.56984026);
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return fract(alpha.x * coord.x + alpha.y * coord.y ) ;
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}
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void waterVolumetrics_notoverworld(inout vec3 inColor, vec3 rayStart, vec3 rayEnd, float estEndDepth, float estSunDepth, float rayLength, float dither, vec3 waterCoefs, vec3 scatterCoef, vec3 ambient){
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inColor *= exp(-rayLength * waterCoefs); //No need to take the integrated value
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int spCount = rayMarchSampleCount;
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vec3 start = toShadowSpaceProjected(rayStart);
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vec3 end = toShadowSpaceProjected(rayEnd);
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vec3 dV = (end-start);
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//limit ray length at 32 blocks for performance and reducing integration error
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//you can't see above this anyway
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float maxZ = min(rayLength,12.0)/(1e-8+rayLength);
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dV *= maxZ;
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rayLength *= maxZ;
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float dY = normalize(mat3(gbufferModelViewInverse) * rayEnd).y * rayLength;
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estEndDepth *= maxZ;
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estSunDepth *= maxZ;
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vec3 wpos = mat3(gbufferModelViewInverse) * rayStart + gbufferModelViewInverse[3].xyz;
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vec3 dVWorld = (wpos-gbufferModelViewInverse[3].xyz);
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vec3 absorbance = vec3(1.0);
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vec3 vL = vec3(0.0);
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float expFactor = 11.0;
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for (int i=0;i<spCount;i++) {
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float d = (pow(expFactor, float(i+dither)/float(spCount))/expFactor - 1.0/expFactor)/(1-1.0/expFactor);
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float dd = pow(expFactor, float(i+dither)/float(spCount)) * log(expFactor) / float(spCount)/(expFactor-1.0);
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vec3 spPos = start.xyz + dV*d;
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vec3 progressW = start.xyz+cameraPosition+dVWorld;
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vec3 ambientMul = exp(-max(estEndDepth * d,0.0) * waterCoefs );
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vec3 Indirectlight = ambientMul*ambient;
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vec3 light = Indirectlight * scatterCoef;
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vL += (light - light * exp(-waterCoefs * dd * rayLength)) / waterCoefs * absorbance;
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absorbance *= exp(-dd * rayLength * waterCoefs);
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}
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inColor += vL;
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}
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vec4 blueNoise(vec2 coord){
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return texelFetch2D(colortex6, ivec2(coord)%512 , 0) ;
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}
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vec2 R2_samples(int n){
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vec2 alpha = vec2(0.75487765, 0.56984026);
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return fract(alpha * n);
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}
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float fogPhase2(float lightPoint){
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float linear = 1.0 - clamp(lightPoint*0.5+0.5,0.0,1.0);
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float linear2 = 1.0 - clamp(lightPoint,0.0,1.0);
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float exponential = exp2(pow(linear,0.3) * -15.0 ) * 1.5;
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exponential += sqrt(exp2(sqrt(linear) * -12.5));
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return exponential;
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}
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vec4 waterVolumetrics_test( vec3 rayStart, vec3 rayEnd, float estEndDepth, float estSunDepth, float rayLength, float dither, vec3 waterCoefs, vec3 scatterCoef, vec3 ambient, vec3 lightSource, float VdotL){
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int spCount = rayMarchSampleCount;
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vec3 start = toShadowSpaceProjected(rayStart);
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vec3 end = toShadowSpaceProjected(rayEnd);
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vec3 dV = (end-start);
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//limit ray length at 32 blocks for performance and reducing integration error
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//you can't see above this anyway
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float maxZ = min(rayLength,12.0)/(1e-8+rayLength);
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dV *= maxZ;
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rayLength *= maxZ;
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estEndDepth *= maxZ;
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estSunDepth *= maxZ;
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vec3 wpos = mat3(gbufferModelViewInverse) * rayStart + gbufferModelViewInverse[3].xyz;
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vec3 dVWorld = (wpos - gbufferModelViewInverse[3].xyz);
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vec3 newabsorbance = exp(-rayLength * waterCoefs); // No need to take the integrated value
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#ifdef OVERWORLD_SHADER
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float phase = fogPhase(VdotL) * 5.0;
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#else
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float phase = 1.0;
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#endif
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vec3 absorbance = vec3(1.0);
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vec3 vL = vec3(0.0);
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ambient = max(ambient * (normalize(wpos).y*0.3+0.7),0.0);
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float expFactor = 11.0;
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for (int i=0;i<spCount;i++) {
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float d = (pow(expFactor, float(i+dither)/float(spCount))/expFactor - 1.0/expFactor)/(1-1.0/expFactor);
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float dd = pow(expFactor, float(i+dither)/float(spCount)) * log(expFactor) / float(spCount)/(expFactor-1.0);
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vec3 progressW = start.xyz+cameraPosition+dVWorld;
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vec3 sh = vec3(1.0);
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#ifdef OVERWORLD_SHADER
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vec3 spPos = start.xyz + dV*d;
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//project into biased shadowmap space
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#ifdef DISTORT_SHADOWMAP
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float distortFactor = calcDistort(spPos.xy);
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#else
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float distortFactor = 1.0;
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#endif
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vec3 pos = vec3(spPos.xy*distortFactor, spPos.z);
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if (abs(pos.x) < 1.0-0.5/2048. && abs(pos.y) < 1.0-0.5/2048){
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pos = pos*vec3(0.5,0.5,0.5/6.0)+0.5;
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// sh = shadow2D( shadow, pos).x;
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#ifdef TRANSLUCENT_COLORED_SHADOWS
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sh = vec3(shadow2D(shadowtex0, pos).x);
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if(shadow2D(shadowtex1, pos).x > pos.z && sh.x < 1.0){
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vec4 translucentShadow = texture2D(shadowcolor0, pos.xy);
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if(translucentShadow.a < 0.9) sh = normalize(translucentShadow.rgb+0.0001);
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}
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#else
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sh = vec3(shadow2D(shadow, pos).x);
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#endif
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}
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#ifdef VL_CLOUDS_SHADOWS
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sh *= GetCloudShadow_VLFOG(progressW,WsunVec);
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#endif
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#endif
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vec3 sunMul = exp(-estSunDepth * d * waterCoefs * 1.1);
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vec3 ambientMul = exp(-estEndDepth * d * waterCoefs );
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vec3 Directlight = ((lightSource * sh) * phase * sunMul) ;
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vec3 Indirectlight = max(ambient * ambientMul, vec3(0.01,0.2,0.4) * ambientMul * MIN_LIGHT_AMOUNT * 0.03) ;
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vec3 light = (Indirectlight + Directlight) * scatterCoef;
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vL += (light - light * exp(-waterCoefs * dd * rayLength)) / waterCoefs * absorbance;
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absorbance *= exp(-waterCoefs * dd * rayLength);
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}
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// inColor += vL;
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return vec4( vL, dot(newabsorbance,vec3(0.335)));
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}
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vec2 decodeVec2(float a){
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const vec2 constant1 = 65535. / vec2( 256., 65536.);
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const float constant2 = 256. / 255.;
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return fract( a * constant1 ) * constant2 ;
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}
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//////////////////////////////VOID MAIN//////////////////////////////
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//////////////////////////////VOID MAIN//////////////////////////////
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//////////////////////////////VOID MAIN//////////////////////////////
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//////////////////////////////VOID MAIN//////////////////////////////
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//////////////////////////////VOID MAIN//////////////////////////////
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void main() {
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/* RENDERTARGETS:13 */
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gl_FragData[0] = vec4(0,0,0,1);
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vec2 tc = floor(gl_FragCoord.xy)/VL_RENDER_RESOLUTION*texelSize+0.5*texelSize;
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bool iswater = texture2D(colortex7,tc).a > 0.99;
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//////////////////////////////////////////////////////////
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///////////////// BEHIND OF TRANSLUCENTS /////////////////
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//////////////////////////////////////////////////////////
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if(texture2D(colortex2, tc).a > 0.0 || iswater){
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float noise_1 = R2_dither();
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float noise_2 = blueNoise();
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float z0 = texture2D(depthtex0,tc).x;
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#ifdef DISTANT_HORIZONS
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float DH_z0 = texture2D(dhDepthTex,tc).x;
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#else
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float DH_z0 = 0.0;
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#endif
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float z = texture2D(depthtex1,tc).x;
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#ifdef DISTANT_HORIZONS
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float DH_z = texture2D(dhDepthTex1,tc).x;
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#else
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float DH_z = 0.0;
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#endif
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// vec3 lightningColor = (lightningEffect / 3) * (max(eyeBrightnessSmooth.y,0)/240.);
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float dirtAmount = Dirt_Amount + 0.1;
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// float dirtAmount = Dirt_Amount + 0.01;
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vec3 waterEpsilon = vec3(Water_Absorb_R, Water_Absorb_G, Water_Absorb_B);
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vec3 dirtEpsilon = vec3(Dirt_Absorb_R, Dirt_Absorb_G, Dirt_Absorb_B);
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vec3 totEpsilon = dirtEpsilon*dirtAmount + waterEpsilon;
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vec3 scatterCoef = dirtAmount * vec3(Dirt_Scatter_R, Dirt_Scatter_G, Dirt_Scatter_B) / 3.14;
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#ifdef BIOME_TINT_WATER
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// yoink the biome tint written in this buffer for water only.
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if(iswater){
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vec2 translucentdata = texture2D(colortex11,tc).gb;
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vec3 wateralbedo = normalize(vec3(decodeVec2(translucentdata.x),decodeVec2(translucentdata.y).x)+0.00001) * 0.5 + 0.5;
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scatterCoef = dirtAmount * wateralbedo / 3.14;
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}
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#endif
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vec3 directLightColor = lightCol.rgb/80.0;
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vec3 indirectLightColor = averageSkyCol/30.0;
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vec3 indirectLightColor_dynamic = averageSkyCol_Clouds/30.0;
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vec3 viewPos1 = toScreenSpace_DH(tc/RENDER_SCALE, z, DH_z);
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vec3 viewPos0 = toScreenSpace_DH(tc/RENDER_SCALE, z0, DH_z0);
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vec3 playerPos = normalize(mat3(gbufferModelViewInverse) * viewPos1);
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#ifdef OVERWORLD_SHADER
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// vec2 lightmap = decodeVec2(texture2D(colortex14, tc).a);
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vec2 lightmap = vec2(0.0,texture2D(colortex14, tc).a);
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#ifdef DISTANT_HORIZONS
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if(z >= 1.0) lightmap.y = 0.99;
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#endif
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#else
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vec2 lightmap = decodeVec2(texture2D(colortex14, tc).a);
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lightmap.y = 1.0;
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#endif
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float Vdiff = distance(viewPos1, viewPos0) * 2.0;
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float VdotU = playerPos.y;
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float estimatedDepth = Vdiff * abs(VdotU) ; //assuming water plane
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float estimatedSunDepth = estimatedDepth / abs(WsunVec.y); //assuming water plane
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indirectLightColor_dynamic *= ambient_brightness * pow(1.0-pow(1.0-lightmap.y,0.5),3.0) ;
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// float TorchBrightness_autoAdjust = mix(1.0, 30.0, clamp(exp(-10.0*exposure),0.0,1.0)) ;
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// indirectLightColor_dynamic += vec3(TORCH_R,TORCH_G,TORCH_B) * TorchBrightness_autoAdjust * pow(1.0-sqrt(1.0-clamp(lightmap.x,0.0,1.0)),2.0) * 2.0;
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vec3 cloudDepth = vec3(0.0);
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vec4 VolumetricFog2 = vec4(0,0,0,1);
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vec4 VolumetricClouds = vec4(0,0,0,1);
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#ifdef OVERWORLD_SHADER
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if(!iswater){
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#if defined CLOUDS_INTERSECT_TERRAIN
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VolumetricClouds = renderClouds(viewPos1, vec2(noise_1,noise_2), directLightColor, indirectLightColor, cloudDepth);
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#endif
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float atmosphereAlpha = 1.0;
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VolumetricFog2 = GetVolumetricFog(viewPos1, vec2(noise_1, noise_2), directLightColor, indirectLightColor,indirectLightColor_dynamic, atmosphereAlpha);
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VolumetricClouds.a *= atmosphereAlpha;
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#if defined CLOUDS_INTERSECT_TERRAIN
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VolumetricFog2 = vec4(VolumetricClouds.rgb * VolumetricFog2.a * atmosphereAlpha + VolumetricFog2.rgb, VolumetricFog2.a*VolumetricClouds.a);
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#endif
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}
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#endif
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vec4 underwaterVlFog = vec4(0,0,0,1);
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if(iswater) underwaterVlFog = waterVolumetrics_test(viewPos0, viewPos1, estimatedDepth, estimatedSunDepth, Vdiff, noise_1, totEpsilon, scatterCoef, indirectLightColor_dynamic, directLightColor* (1.0-caveDetection), dot(normalize(viewPos1), normalize(sunVec*lightCol.a)) );
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vec4 fogFinal = vec4(underwaterVlFog.rgb * VolumetricFog2.a + VolumetricFog2.rgb, VolumetricFog2.a * underwaterVlFog.a);
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gl_FragData[0] = clamp(fogFinal, 0.0, 65000.0);
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}
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} |