mirror of
https://github.com/X0nk/Bliss-Shader.git
synced 2024-12-23 01:59:39 +08:00
439 lines
13 KiB
GLSL
439 lines
13 KiB
GLSL
#include "/lib/settings.glsl"
|
|
#include "/lib/util.glsl"
|
|
#include "/lib/res_params.glsl"
|
|
#include "/lib/color_transforms.glsl"
|
|
#include "/lib/projections.glsl"
|
|
|
|
uniform vec2 texelSize;
|
|
// uniform int moonPhase;
|
|
uniform float frameTimeCounter;
|
|
uniform sampler2D noisetex;
|
|
|
|
const bool shadowHardwareFiltering = true;
|
|
uniform sampler2DShadow shadow;
|
|
|
|
#ifdef DISTANT_HORIZONS
|
|
uniform sampler2D dhDepthTex;
|
|
uniform sampler2D dhDepthTex1;
|
|
#endif
|
|
uniform sampler2D depthtex0;
|
|
uniform sampler2D depthtex1;
|
|
|
|
uniform sampler2D colortex12;
|
|
// uniform sampler2D colortex7;
|
|
uniform sampler2D colortex4;
|
|
uniform sampler2D colortex5;
|
|
|
|
|
|
#include "/lib/sky_gradient.glsl"
|
|
#include "/lib/waterBump.glsl"
|
|
#include "/lib/Shadow_Params.glsl"
|
|
|
|
varying vec4 pos;
|
|
varying vec4 gcolor;
|
|
|
|
varying vec4 normals_and_materials;
|
|
|
|
varying vec2 lightmapCoords;
|
|
|
|
flat varying int isWater;
|
|
|
|
// uniform float far;
|
|
uniform float dhFarPlane;
|
|
uniform float dhNearPlane;
|
|
|
|
uniform vec3 previousCameraPosition;
|
|
// uniform vec3 cameraPosition;
|
|
|
|
// uniform mat4 gbufferModelView;
|
|
uniform mat4 gbufferPreviousModelView;
|
|
|
|
// uniform mat4 shadowModelView;
|
|
// uniform mat4 shadowModelViewInverse;
|
|
// uniform mat4 shadowProjection;
|
|
// uniform mat4 shadowProjectionInverse;
|
|
|
|
|
|
|
|
uniform int frameCounter;
|
|
|
|
|
|
// uniform sampler2D colortex4;
|
|
flat varying vec3 averageSkyCol_Clouds;
|
|
flat varying vec4 lightCol;
|
|
flat varying vec3 WsunVec;
|
|
flat varying vec3 WsunVec2;
|
|
|
|
|
|
|
|
// uniform mat4 dhPreviousProjection;
|
|
// uniform mat4 dhProjectionInverse;
|
|
// uniform mat4 dhProjection;
|
|
|
|
|
|
|
|
#include "/lib/DistantHorizons_projections.glsl"
|
|
|
|
vec3 DH_toScreenSpace(vec3 p) {
|
|
vec4 iProjDiag = vec4(dhProjectionInverse[0].x, dhProjectionInverse[1].y, dhProjectionInverse[2].zw);
|
|
vec3 feetPlayerPos = p * 2. - 1.;
|
|
vec4 viewPos = iProjDiag * feetPlayerPos.xyzz + dhProjectionInverse[3];
|
|
return viewPos.xyz / viewPos.w;
|
|
}
|
|
|
|
vec3 DH_toClipSpace3(vec3 viewSpacePosition) {
|
|
return projMAD(dhProjection, viewSpacePosition) / -viewSpacePosition.z * 0.5 + 0.5;
|
|
}
|
|
uniform float near;
|
|
float invLinZ (float lindepth){
|
|
return -((2.0*near/lindepth)-far-near)/(far-near);
|
|
}
|
|
float ld(float dist) {
|
|
return (2.0 * near) / (far + near - dist * (far - near));
|
|
}
|
|
|
|
// float DH_ld(float dist) {
|
|
// return (2.0 * dhNearPlane) / (dhFarPlane + dhNearPlane - dist * (dhFarPlane - dhNearPlane));
|
|
// }
|
|
// float DH_invLinZ (float lindepth){
|
|
// return -((2.0*dhNearPlane/lindepth)-dhFarPlane-dhNearPlane)/(dhFarPlane-dhNearPlane);
|
|
// }
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
|
|
|
|
uniform int isEyeInWater;
|
|
uniform float rainStrength;
|
|
|
|
#ifdef OVERWORLD_SHADER
|
|
#define CLOUDSHADOWSONLY
|
|
#include "/lib/volumetricClouds.glsl"
|
|
#endif
|
|
|
|
float GGX(vec3 n, vec3 v, vec3 l, float r, float f0) {
|
|
r = max(pow(r,2.5), 0.0001);
|
|
|
|
vec3 h = l + v;
|
|
float hn = inversesqrt(dot(h, h));
|
|
|
|
float dotLH = clamp(dot(h,l)*hn,0.,1.);
|
|
float dotNH = clamp(dot(h,n)*hn,0.,1.) ;
|
|
float dotNL = clamp(dot(n,l),0.,1.);
|
|
float dotNHsq = dotNH*dotNH;
|
|
|
|
float denom = dotNHsq * r - dotNHsq + 1.;
|
|
float D = r / (3.141592653589793 * denom * denom);
|
|
|
|
float F = f0 + (1. - f0) * exp2((-5.55473*dotLH-6.98316)*dotLH);
|
|
float k2 = .25 * r;
|
|
|
|
return dotNL * D * F / (dotLH*dotLH*(1.0-k2)+k2);
|
|
}
|
|
|
|
uniform int framemod8;
|
|
|
|
#include "/lib/TAA_jitter.glsl"
|
|
|
|
|
|
|
|
// float DH_ld(float dist) {
|
|
// return (2.0 * dhNearPlane) / (dhFarPlane + dhNearPlane - dist * (dhFarPlane - dhNearPlane));
|
|
// }
|
|
// float DH_invLinZ (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);
|
|
// }
|
|
|
|
// uniform float far;
|
|
|
|
vec3 rayTrace(vec3 dir, vec3 position,float dither, float fresnel, bool inwater){
|
|
|
|
float quality = mix(5,SSR_STEPS,fresnel);
|
|
vec3 clipPosition = DH_toClipSpace3(position);
|
|
float rayLength = ((position.z + dir.z * dhFarPlane*sqrt(3.)) > -dhNearPlane) ?
|
|
(-dhNearPlane - position.z) / dir.z : dhFarPlane*sqrt(3.);
|
|
vec3 direction = normalize(DH_toClipSpace3(position+dir*rayLength)-clipPosition); //convert to clip space
|
|
direction.xy = normalize(direction.xy);
|
|
|
|
//get at which length the ray intersects with the edge of the screen
|
|
vec3 maxLengths = (step(0.,direction)-clipPosition) / direction;
|
|
float mult = min(min(maxLengths.x,maxLengths.y),maxLengths.z);
|
|
|
|
|
|
vec3 stepv = direction * mult / quality * vec3(RENDER_SCALE,1.0);
|
|
|
|
|
|
vec3 spos = clipPosition*vec3(RENDER_SCALE,1.0) + stepv*dither;
|
|
float minZ = clipPosition.z;
|
|
float maxZ = spos.z+stepv.z*0.5;
|
|
|
|
spos.xy += offsets[framemod8]*texelSize*0.5/RENDER_SCALE;
|
|
|
|
for (int i = 0; i <= int(quality); i++) {
|
|
|
|
// float sp = DH_inv_ld(sqrt(texelFetch2D(colortex12,ivec2(spos.xy/texelSize/4),0).a/65000.0));
|
|
float sp = DH_inv_ld(sqrt(texelFetch2D(colortex12,ivec2(spos.xy/texelSize/4),0).a/64000.0));
|
|
|
|
if(sp <= max(maxZ,minZ) && sp >= min(maxZ,minZ)) return vec3(spos.xy/RENDER_SCALE,sp);
|
|
|
|
spos += stepv;
|
|
|
|
//small bias
|
|
minZ = maxZ-0.0000035/DH_ld(spos.z);
|
|
|
|
maxZ += stepv.z;
|
|
}
|
|
|
|
return vec3(1.1);
|
|
}
|
|
float R2_dither(){
|
|
vec2 coord = gl_FragCoord.xy + (frameCounter%40000) * 2.0;
|
|
vec2 alpha = vec2(0.75487765, 0.56984026);
|
|
return fract(alpha.x * coord.x + alpha.y * coord.y ) ;
|
|
}
|
|
float interleaved_gradientNoise(){
|
|
vec2 coord = gl_FragCoord.xy + (frameCounter%40000) * 2.0;
|
|
float noise = fract( 52.9829189 * fract( (coord.x * 0.06711056) + (coord.y * 0.00583715) ) );
|
|
return noise ;
|
|
}
|
|
vec3 viewToWorld(vec3 viewPos) {
|
|
vec4 pos;
|
|
pos.xyz = viewPos;
|
|
pos.w = 0.0;
|
|
pos = gbufferModelViewInverse * pos;
|
|
return pos.xyz;
|
|
}
|
|
vec3 worldToView(vec3 worldPos) {
|
|
vec4 pos = vec4(worldPos, 0.0);
|
|
pos = gbufferModelView * pos;
|
|
return pos.xyz;
|
|
}
|
|
vec4 encode (vec3 n, vec2 lightmaps){
|
|
n.xy = n.xy / dot(abs(n), vec3(1.0));
|
|
n.xy = n.z <= 0.0 ? (1.0 - abs(n.yx)) * sign(n.xy) : n.xy;
|
|
vec2 encn = clamp(n.xy * 0.5 + 0.5,-1.0,1.0);
|
|
|
|
return vec4(encn,vec2(lightmaps.x,lightmaps.y));
|
|
}
|
|
|
|
//encoding by jodie
|
|
float encodeVec2(vec2 a){
|
|
const vec2 constant1 = vec2( 1., 256.) / 65535.;
|
|
vec2 temp = floor( a * 255. );
|
|
return temp.x*constant1.x+temp.y*constant1.y;
|
|
}
|
|
float encodeVec2(float x,float y){
|
|
return encodeVec2(vec2(x,y));
|
|
}
|
|
vec3 applyBump(mat3 tbnMatrix, vec3 bump, float puddle_values){
|
|
float bumpmult = puddle_values;
|
|
bump = bump * vec3(bumpmult, bumpmult, bumpmult) + vec3(0.0f, 0.0f, 1.0f - bumpmult);
|
|
//
|
|
return normalize(bump*tbnMatrix);
|
|
}
|
|
|
|
|
|
/* RENDERTARGETS:2,7 */
|
|
void main() {
|
|
if (gl_FragCoord.x * texelSize.x < 1.0 && gl_FragCoord.y * texelSize.y < 1.0 ) {
|
|
|
|
bool iswater = isWater > 0;
|
|
|
|
float material = 0.7;
|
|
if(iswater) material = 1.0;
|
|
|
|
vec3 normals = normals_and_materials.xyz;
|
|
vec3 viewPos = pos.xyz;
|
|
vec3 playerPos = mat3(gbufferModelViewInverse) * viewPos + gbufferModelViewInverse[3].xyz;
|
|
float transition = exp(-25* pow(clamp(1.0 - length(playerPos)/(far-8),0.0,1.0),2));
|
|
|
|
#ifdef DH_OVERDRAW_PREVENTION
|
|
#if OVERDRAW_MAX_DISTANCE == 0
|
|
float maxOverdrawDistance = far;
|
|
#else
|
|
float maxOverdrawDistance = OVERDRAW_MAX_DISTANCE;
|
|
#endif
|
|
|
|
if(length(playerPos) < clamp(far-16*4, 16, maxOverdrawDistance) ){ discard; return;}
|
|
#endif
|
|
|
|
if(iswater && abs(normals.y) > 0.0){
|
|
vec3 posxz = playerPos+cameraPosition;
|
|
|
|
vec3 bump = normalize(getWaveNormal(posxz, true));
|
|
|
|
float bumpmult = 10.0 * WATER_WAVE_STRENGTH;
|
|
bump = bump * vec3(bumpmult, bumpmult, bumpmult) + vec3(0.0f, 0.0f, 1.0f - bumpmult);
|
|
|
|
normals.xz = bump.xy;
|
|
}
|
|
|
|
normals = worldToView(normals);
|
|
|
|
gl_FragData[0] = gcolor;
|
|
// float UnchangedAlpha = gl_FragData[0].a;
|
|
|
|
#ifdef WhiteWorld
|
|
gl_FragData[0].rgb = vec3(0.5);
|
|
gl_FragData[0].a = 1.0;
|
|
#endif
|
|
|
|
vec3 Albedo = toLinear(gl_FragData[0].rgb);
|
|
|
|
#ifndef WhiteWorld
|
|
#ifndef Vanilla_like_water
|
|
if (iswater){
|
|
Albedo = vec3(0.0);
|
|
gl_FragData[0].a = 1.0/255.0;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
// diffuse
|
|
vec3 Indirect_lighting = vec3(0.0);
|
|
// vec3 MinimumLightColor = vec3(1.0);
|
|
// if(isEyeInWater == 1) MinimumLightColor = vec3(10.0);
|
|
vec3 Direct_lighting = vec3(0.0);
|
|
|
|
#ifdef OVERWORLD_SHADER
|
|
vec3 DirectLightColor = lightCol.rgb/80.0;
|
|
|
|
float NdotL = clamp(dot(normals, normalize(WsunVec2)),0.0,1.0);
|
|
NdotL = clamp((-15 + NdotL*255.0) / 240.0 ,0.0,1.0);
|
|
|
|
float Shadows = 1.0;
|
|
|
|
#ifdef DISTANT_HORIZONS_SHADOWMAP
|
|
vec3 feetPlayerPos_shadow = mat3(gbufferModelViewInverse) * pos.xyz + gbufferModelViewInverse[3].xyz;
|
|
|
|
vec3 projectedShadowPosition = mat3(shadowModelView) * feetPlayerPos_shadow + shadowModelView[3].xyz;
|
|
projectedShadowPosition = diagonal3(shadowProjection) * projectedShadowPosition + shadowProjection[3].xyz;
|
|
|
|
//apply distortion
|
|
#ifdef DISTORT_SHADOWMAP
|
|
float distortFactor = calcDistort(projectedShadowPosition.xy);
|
|
projectedShadowPosition.xy *= distortFactor;
|
|
#else
|
|
float distortFactor = 1.0;
|
|
#endif
|
|
|
|
float smallbias = -0.0035;
|
|
|
|
bool ShadowBounds = abs(projectedShadowPosition.x) < 1.0-1.5/shadowMapResolution && abs(projectedShadowPosition.y) < 1.0-1.5/shadowMapResolution && abs(projectedShadowPosition.z) < 6.0;
|
|
|
|
if(ShadowBounds){
|
|
Shadows = 0.0;
|
|
projectedShadowPosition = projectedShadowPosition * vec3(0.5,0.5,0.5/6.0) + vec3(0.5);
|
|
|
|
Shadows = shadow2D(shadow, projectedShadowPosition + vec3(0.0,0.0, smallbias)).x;
|
|
}
|
|
#endif
|
|
#ifdef CLOUDS_SHADOWS
|
|
Shadows *= pow(GetCloudShadow(playerPos),3);
|
|
#endif
|
|
|
|
Direct_lighting = DirectLightColor * NdotL * Shadows;
|
|
|
|
vec3 AmbientLightColor = averageSkyCol_Clouds/30.0;
|
|
|
|
vec3 ambientcoefs = normals_and_materials.xyz / dot(abs(normals_and_materials.xyz), vec3(1.0));
|
|
float SkylightDir = ambientcoefs.y*1.5;
|
|
|
|
float skylight = max(pow(viewToWorld(normals_and_materials.xyz).y*0.5+0.5,0.1) + SkylightDir, 0.2);
|
|
AmbientLightColor *= skylight;
|
|
#endif
|
|
|
|
#ifndef OVERWORLD_SHADER
|
|
vec3 AmbientLightColor = vec3(0.5);
|
|
#endif
|
|
|
|
Indirect_lighting = AmbientLightColor;
|
|
|
|
vec3 FinalColor = (Indirect_lighting + Direct_lighting) * Albedo;
|
|
|
|
// specular
|
|
#ifdef WATER_REFLECTIONS
|
|
vec3 Reflections_Final = vec3(0.0);
|
|
vec4 Reflections = vec4(0.0);
|
|
vec3 BackgroundReflection = FinalColor;
|
|
vec3 SunReflection = vec3(0.0);
|
|
|
|
float roughness = 0.035;
|
|
float f0 = 0.02;
|
|
// f0 = 0.9;
|
|
|
|
vec3 reflectedVector = reflect(normalize(viewPos), normals);
|
|
float normalDotEye = dot(normals, normalize(viewPos));
|
|
|
|
float fresnel = pow(clamp(1.0 + normalDotEye, 0.0, 1.0),5.0);
|
|
|
|
fresnel = mix(f0, 1.0, fresnel);
|
|
|
|
#ifdef SNELLS_WINDOW
|
|
if(isEyeInWater == 1) fresnel = pow(clamp(1.5 + normalDotEye,0.0,1.0), 25.0);
|
|
#endif
|
|
#if defined SCREENSPACE_REFLECTIONS && defined DH_SCREENSPACE_REFLECTIONS
|
|
vec3 rtPos = rayTrace(reflectedVector, viewPos, interleaved_gradientNoise(), fresnel, false);
|
|
if (rtPos.z < 1.){
|
|
vec3 previousPosition = mat3(gbufferModelViewInverse) * DH_toScreenSpace(rtPos) + gbufferModelViewInverse[3].xyz + cameraPosition-previousCameraPosition;
|
|
previousPosition = mat3(gbufferPreviousModelView) * previousPosition + gbufferPreviousModelView[3].xyz;
|
|
previousPosition.xy = projMAD(dhPreviousProjection, previousPosition).xy / -previousPosition.z * 0.5 + 0.5;
|
|
if (previousPosition.x > 0.0 && previousPosition.y > 0.0 && previousPosition.x < 1.0 && previousPosition.x < 1.0) {
|
|
Reflections.a = 1.0;
|
|
Reflections.rgb = texture2D(colortex5, previousPosition.xy).rgb;
|
|
}
|
|
}
|
|
#endif
|
|
#ifdef WATER_BACKGROUND_SPECULAR
|
|
BackgroundReflection = skyCloudsFromTex(mat3(gbufferModelViewInverse) * reflectedVector, colortex4).rgb / 30.0;
|
|
#endif
|
|
#ifdef WATER_SUN_SPECULAR
|
|
SunReflection = Direct_lighting * GGX(normalize(normals), -normalize(viewPos), normalize(WsunVec2), roughness, f0) * (1.0-Reflections.a);
|
|
#endif
|
|
|
|
Reflections_Final = mix(BackgroundReflection, Reflections.rgb, Reflections.a) * fresnel;
|
|
Reflections_Final += SunReflection;
|
|
|
|
//correct alpha channel with fresnel
|
|
float alpha0 = gl_FragData[0].a;
|
|
|
|
gl_FragData[0].a = -gl_FragData[0].a * fresnel + gl_FragData[0].a + fresnel;
|
|
|
|
// prevent reflections from being darkened by buffer blending
|
|
gl_FragData[0].rgb = clamp(FinalColor / gl_FragData[0].a*alpha0*(1.0-fresnel) * 0.1 + Reflections_Final / gl_FragData[0].a * 0.1,0.0,65100.0);
|
|
|
|
if (gl_FragData[0].r > 65000.) gl_FragData[0].rgba = vec4(0.0);
|
|
#else
|
|
gl_FragData[0].rgb = FinalColor*0.1;
|
|
#endif
|
|
|
|
#ifdef DH_OVERDRAW_PREVENTION
|
|
float distancefade = min(max(1.0 - length(playerPos)/clamp(far-16*4, 16, maxOverdrawDistance),0.0)*5,1.0);
|
|
|
|
if(texture2D(depthtex0, gl_FragCoord.xy*texelSize).x < 1.0 || distancefade > 0.0){
|
|
gl_FragData[0].a = 0.0;
|
|
material = 0.0;
|
|
}
|
|
#endif
|
|
|
|
#if DEBUG_VIEW == debug_DH_WATER_BLENDING
|
|
if(gl_FragCoord.x*texelSize.x > 0.53) gl_FragData[0] = vec4(0.0);
|
|
#endif
|
|
|
|
gl_FragData[1] = vec4(Albedo, material);
|
|
}
|
|
} |