#ifdef FRAGMENT_SHADER
    #define DAY_R 1.0f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]
    #define DAY_G 1.0f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]
    #define DAY_B 1.0f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]
    #define DAY_I 1.0f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]

    #define NIGHT_R 0.9f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]
    #define NIGHT_G 1.0f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]
    #define NIGHT_B 1.1f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]
    #define NIGHT_I 1.0f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]

    #define SUNSET_R 1.1f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]
    #define SUNSET_G 1.0f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]
    #define SUNSET_B 0.8f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]
    #define SUNSET_I 1.0f // [0.5f 0.6f 0.7f 0.8f 0.9f 1.0f 1.1f 1.2f 1.3f 1.4f 1.5f]

    #define PATH_TRACING_GI 0 // [0 1]

    #define PATH_TRACING_GI

    #define AO_WIDTH 0.1 // [0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0]

    uniform usampler3D cSampler3;

    uniform sampler2D lightmap;
    uniform sampler2D depthtex0;
    uniform sampler2D depthtex1;
    uniform float viewWidth;
    uniform float viewHeight;
    uniform vec3 fogColor;

    uniform sampler2D noiseb;

    uniform sampler2D noises;

    uniform sampler2D colortex0;
    uniform sampler2D colortex2;
    uniform sampler2D colortex6;
    uniform sampler2D colortex5;
    uniform sampler2D colortex1;
    uniform sampler2D colortex12;
    uniform sampler2D colortex15;
    uniform sampler2D colortex13;

    uniform int dhRenderDistance;

    uniform int worldTime;
    uniform int frameCounter;
    uniform float frameTime;

    uniform bool isBiomeEnd;

    uniform vec3 cameraPosition;

    uniform vec3 shadowLightPosition;

    uniform float near;
    uniform float far;
    uniform float dhNearPlane;
    uniform float dhFarPlane;

    #include "/lib/includes2.glsl"
    #include "/lib/globalDefines.glsl"
    #include "/lib/optimizationFunctions.glsl"

    /* RENDERTARGETS:0,2,6,5,1,12,15,13 */
    layout(location = 0) out vec4 outColor0;
    layout(location = 1) out vec4 outColor2;
    layout(location = 2) out vec4 fogOut;
    layout(location = 3) out vec4 isWater;
    layout(location = 4) out vec4 normal;
    layout(location = 5) out vec4 dataTex0;
    layout(location = 6) out vec4 camDist;

    layout (rgba8) uniform image2D cimage11;

    in vec4 blockColor;
    in vec2 lightmapCoords;

    in vec3 playerPos;

    in float isWaterBlock;

    in vec3 Normal;
    in vec3 Tangent;

    in vec3 block_centered_relative_pos;

    in vec3 lightmap2;

    in vec4 at_midBlock2;

    in float isFoliage;

    in float isReflective;

    in vec3 worldSpaceVertexPosition;

    in vec3 normals_face_world;

    in vec3 foot_pos;
    in vec3 view_pos;

    uniform mat4 dhProjectionInverse;
    uniform mat4 dhModelViewInverse;

    mediump float AdjustLightmapTorch(in float torch) {
        const mediump float K = 2.0f;
        const mediump float P = 5.06f;
        return K * pow2(torch, P);
    }

    mediump float AdjustLightmapSky(in float sky){
        mediump float sky_2 = sky * sky;
        return sky_2 * sky_2;
    }

    vec2 AdjustLightmap(in vec2 Lightmap){
        vec2 NewLightMap;
        NewLightMap.x = AdjustLightmapTorch(Lightmap.x);
        NewLightMap.y = AdjustLightmapSky(Lightmap.y);
        return NewLightMap;
    }

    vec3 translucentMult;

    vec3 GetLightmapColor(in vec2 Lightmap){
        Lightmap = AdjustLightmap(Lightmap);
        Lightmap.x = min(Lightmap.x, 0.25);
        const vec3 TorchColor = vec3(1.0f, 0.25f, 0.08f);
        const vec3 GlowstoneColor = vec3(1.0f, 0.85f, 0.5f);
        const vec3 LampColor = vec3(1.0f, 0.75f, 0.4f);
        const vec3 LanternColor = vec3(0.8f, 1.0f, 1.0f);
        const vec3 RedstoneColor = vec3(1.0f, 0.0f, 0.0f);
        const vec3 RodColor = vec3(1.0f, 1.0f, 1.0f);
        vec3 SkyColor = vec3(0.05f, 0.15f, 0.3f);
        //SkyColor = currentColor;
        if(worldTime%24000 > 12000) {
            Lightmap.y *= NIGHT_I * 0.05f;
        }
        vec3 TorchLighting = Lightmap.x * TorchColor;
        vec3 GlowstoneLighting = Lightmap.x * GlowstoneColor;
        vec3 LampLighting = Lightmap.x * LampColor;
        vec3 LanternLighting = Lightmap.x * LanternColor;
        vec3 RedstoneLighting = Lightmap.x * RedstoneColor;
        vec3 RodLighting = Lightmap.x * RodColor;
        vec3 SkyLighting = Lightmap.y * SkyColor;
        if(lightmap2.x > 0) {
            TorchLighting = TorchColor * lightmap2.x;
        }
        if(lightmap2.x < 0) {
            GlowstoneLighting = GlowstoneColor * -lightmap2.x;
        }
        if(lightmap2.y > 0) {
            LampLighting = LampColor * lightmap2.y;
        }
        if(lightmap2.y < 0) {
            LanternLighting = LanternColor * -lightmap2.y;
        }
        if(lightmap2.z > 0) {
            RedstoneLighting = RedstoneColor * lightmap2.z;
        }
        if(lightmap2.z < 0) {
            RodLighting = RodColor * -lightmap2.z;
        }
        vec3 LightmapLighting = TorchLighting + GlowstoneLighting + LampLighting + LanternLighting + RedstoneLighting + RodLighting + SkyLighting;
        return LightmapLighting;
    }

    float remapDHDepth(float depth, float nearPlane, float farPlaneChunks, float farPlaneDH) {
        float z_dh = linearizeDepth(depth, dhNearPlane, farPlaneDH);

        z_dh = clamp(z_dh, farPlaneChunks, farPlaneDH);

        float d_far_chunks = (farPlaneChunks - nearPlane) / (farPlaneDH - nearPlane);
        float t = (z_dh - farPlaneChunks) / (farPlaneDH - farPlaneChunks);
        return mix(d_far_chunks, 1.0, t);
    }

    #include "/lib/lighting/pathTracing.glsl"

    vec3 aces(vec3 x) {
    mediump float a = 2.51;
    mediump float b = 0.03;
    mediump float c = 2.43;
    mediump float d = 0.59;
    mediump float e = 0.14;
    return clamp((x * (a * x + b)) / (x * (c * x + d) + e), 0.0, 1.0);
    }

    vec3 unreal(vec3 x) {
    return x / (x + 0.155) * 1.019;
    }

    vec3 screenToView(vec3 screenPos) {
        vec4 ndcPos = vec4(screenPos, 1.0) * 2.0 - 1.0;
        vec4 tmp = gbufferProjectionInverse * ndcPos;
        return tmp.xyz / tmp.w;
    }

    vec3 screenToWorld(vec3 screenPos) {
        vec4 ndcPos = vec4(screenPos, 1.0) * 2.0 - 1.0;
        vec4 tmp = gbufferProjectionInverse * ndcPos;
        tmp = gbufferModelViewInverse * tmp;
        return tmp.xyz / tmp.w;
    }

    mediump float Noise3D(vec3 p) {
        p.z = fract(p.z) * 128.0;
        mediump float iz = floor(p.z);
        mediump float fz = fract(p.z);
        vec2 a_off = vec2(23.0, 29.0) * (iz) / 128.0;
        vec2 b_off = vec2(23.0, 29.0) * (iz + 1.0) / 128.0;
        mediump float a = texture2D(noises, p.xy + a_off).r;
        mediump float b = texture2D(noises, p.xy + b_off).r;
        return mix2(a, b, fz);
    }

    mediump float calcDepth(float depth, float near, float far) {
        return (near * far) / (depth * (near - far) + far);
    }

    vec4 triplanarTexture(vec3 worldPos, vec3 normal, sampler2D tex, float scale) {
        normal = abs(normal);
        normal = normal / (normal.x + normal.y + normal.z + 0.0001);

        vec2 uvXZ = fract(worldPos.xz * scale);
        vec2 uvXY = fract(worldPos.xy * scale);
        vec2 uvZY = fract(worldPos.zy * scale);

        vec4 texXZ = texture2D(tex,uvXZ) * normal.y;
        vec4 texXY = texture2D(tex,uvXY) * normal.z;
        vec4 texZY = texture2D(tex,uvZY) * normal.x;

        return texXZ + texXY + texZY;
    }

    vec3 currentColor;

    vec3 Diffuse;

    vec3 baseColor;
    vec3 baseDiffuse;

    vec3 baseDiffuseModifier;

    vec3 baseFog;

    vec3 fogAlbedo;

    float baseFogDistMin;
    float baseFogDistMax;
    float fogMin;
    float fogMax;

    float AOMask(sampler2D depth, vec2 UVs, int kernelSize) {
        float dhDepth = texture2D(depth, UVs).xyz;
        float dhDepthLinear = calcDepth(dhDepth, dhNearPlane, dhFarPlane);

        float depthDifference = 0f;
        float kernel = kernelSize;
        for(int i = 0; i < kernelSize; i++) {
            float x = (i / sqrt(kernel)) - sqrt(kernel)/2; // Integer division for x
            float y = mod((i / sqrt(kernel)), sqrt(kernel)) - sqrt(kernel)/2; // Integer division for y
            vec2 offset = vec2(x,y)/1080;
            float offsetDepth = calcLinearDepth(texture2D(depth, UVs + offset).r, dhNearPlane, dhFarPlane);
            if(abs(centerDepth - offsetDepth) > 1) continue;
            depthDifference += abs(centerDepth - offsetDepth);
        }

        return clamp(1 - pow2((depthDifference/kernel),0.5)*AO_STRENGTH, MIN_LIGHT, 1);
    }

    void noonFunc(float time, float timeFactor) {
        if(isBiomeEnd) {
            fogMin = FOG_SE_DIST_MIN;
            fogMax = FOG_SE_DIST_MAX;
        } else {
            mediump float dayNightLerp = clamp((time+250f)/timeFactor,0,1);
            fogMin = mix2(baseFogDistMin, FOG_DAY_DIST_MIN, dayNightLerp);
            fogMax = mix2(baseFogDistMax, FOG_DAY_DIST_MAX, dayNightLerp);
            fogAlbedo = mix2(baseFog, vec3(FOG_DAY_R, FOG_DAY_G, FOG_DAY_B), dayNightLerp);
        }
    }

    void sunsetFunc(float time, float timeFactor) {
        if(isBiomeEnd) {
            fogMin = FOG_SE_DIST_MIN;
            fogMax = FOG_SE_DIST_MAX;
        } else {
            mediump float sunsetLerp = clamp((time+250f)/timeFactor,0,1);
            fogMin = mix2(baseFogDistMin, FOG_SUNSET_DIST_MIN, sunsetLerp);
            fogMax = mix2(baseFogDistMax, FOG_SUNSET_DIST_MAX, sunsetLerp);
            fogAlbedo = mix2(baseFog, vec3(FOG_SUNSET_R, FOG_SUNSET_G, FOG_SUNSET_B), sunsetLerp);
        }
    }

    void nightFunc(float time, float timeFactor) {
        if(isBiomeEnd) {
            fogMin = FOG_SE_DIST_MIN;
            fogMax = FOG_SE_DIST_MAX;
        } else {
            mediump float dayNightLerp = clamp((time+250f)/timeFactor,0,1);
            fogMin = mix2(baseFogDistMin, FOG_NIGHT_DIST_MIN, dayNightLerp);
            fogMax = mix2(baseFogDistMax, FOG_NIGHT_DIST_MAX, dayNightLerp);
            fogAlbedo = mix2(baseFog, vec3(FOG_NIGHT_R, FOG_NIGHT_G, FOG_NIGHT_B), dayNightLerp);
        }
    }

    void dawnFunc(float time, float timeFactor) {
        if(isBiomeEnd) {
            fogMin = FOG_SE_DIST_MIN;
            fogMax = FOG_SE_DIST_MAX;
        } else {
            mediump float sunsetLerp = clamp((time+250f)/timeFactor,0,1);
            baseDiffuseModifier = vec3(SUNSET_I);
            fogAlbedo = mix2(baseFog, vec3(FOG_SUNSET_R, FOG_SUNSET_G, FOG_SUNSET_B), sunsetLerp);
        }
    }

    #include "/lib/world/timeCycle.glsl"

    void main() {
        vec3 shadowLightDirection = normalize(mat3(gbufferModelViewInverse) * shadowLightPosition);

        vec3 worldNormal = mat3(gbufferModelViewInverse) * Normal;

        mediump float lightBrightness = 0.0;

        if(isBiomeEnd) {
            lightBrightness = clamp(dot(shadowLightDirection, worldNormal),max(0.2, SE_MIN_LIGHT),SE_MAX_LIGHT);
        } else {
            lightBrightness = clamp(dot(shadowLightDirection, worldNormal),max(0.2, MIN_LIGHT),MAX_LIGHT);
        }

        vec4 outputColorData = blockColor;
        vec3 outputColor = pow2(outputColorData.rgb,vec3(GAMMA));
        
        mediump float alpha = outputColorData.a;

        vec2 texCoord = gl_FragCoord.xy / vec2(viewWidth, viewHeight);

        mediump float depth = texture2D(depthtex0, texCoord).r;
        mediump float dhDepth = gl_FragCoord.z;
        mediump float depthLinear = calcDepth(depth, near, far*4);
        mediump float dhDepthLinear = calcDepth(dhDepth, dhNearPlane, dhFarPlane);
        
        vec2 dh_ndc = texCoord * 2.0 + 1.0;
        vec4 dh_clip_pos = vec4(dh_ndc, dhDepth, 1.0);
        vec4 dh_view_pos = dhProjectionInverse * dh_clip_pos;
        dh_view_pos /= dh_view_pos.w;
        vec3 dh_foot_pos = (gbufferModelViewInverse * dh_view_pos).xyz;

        mediump float dhDepth2 = length(dh_foot_pos);

        fogMin = FOG_DAY_DIST_MIN;
        fogMax = FOG_DAY_DIST_MAX;

        baseFogDistMin = fogMin;
        baseFogDistMax = fogMax;

        if(worldTime/(timePhase + 1) < 500f) {
            baseFogDistMin = fogMin;
            baseFogDistMax = fogMax;
        }

        mediump float fogStart = fogMin;
        mediump float fogEnd = fogMax;

        vec3 dhWorldPos = dh_foot_pos;
        vec3 finalLight = triplanarTexture(dhWorldPos, worldNormal, noiseb, 0.05).xyz;

        mediump float fogAmount = (length(viewSpaceFragPosition)*(far/dhRenderDistance) - fogStart)/(fogEnd - fogStart);

        mediump float fogBlend = pow2(smoothstep(0.9,1.0,fogAmount),4.2);

        float distanceFromCamera = distance(viewSpaceFragPosition, vec3(0.0));

        fogOut = vec4(0.0, distanceFromCamera/dhFarPlane, dhDepth, 1.0);

        if(alpha >= 0.1 && depth >= dhDepth && depth == 1) {

            if(clamp(1.0-length(viewSpaceFragPosition)/clamp(far - 32.0,32.0,far),0.0,1.0) > 0.1) {
                discard;
            }

            isWater = vec4(0.0);

            outColor0 = vec4(pow2(outputColor.xyz,vec3(1/GAMMA)), alpha);

            normal = vec4(worldNormal * 0.5 + 0.5, 1.0);
            dataTex0 = vec4(1 - lightmapCoords.g, 0.0, 1.0, 1.0);
            camDist = vec4(distanceFromCamera, dhDepth, far/dhFarPlane, 1.0);

            #if LIGHTING_MODE == 0
                outColor2 = vec4(lightmapCoords.x, lightmapCoords.x, lightmapCoords.y, 1.0f);
            #else
                ivec3 voxel_pos = ivec3(block_centered_relative_pos+VOXEL_RADIUS);
                vec3 light_color = vec3(0.0);
                /*if(clamp(voxel_pos,0,VOXEL_AREA) == voxel_pos) {
                    vec4 bytes = unpackUnorm4x8(texture3D(cSampler3,vec3(voxel_pos)/vec3(VOXEL_AREA)).r);
                    light_color = bytes.xyz;
                }*/

                outColor2 = vec4(light_color, 1.0);
            #endif

            imageStore(cimage11, ivec2(gl_FragCoord.xy/vec2(viewWidth, viewHeight) * imageSize(cimage11)), vec4(vec3(remapDHDepth(dhDepth, near, far, dhFarPlane)),1.0));
        } else {
            camDist = vec4(0.0, dhDepth, dhFarPlane, 1.0);
            imageStore(cimage11, ivec2(gl_FragCoord.xy/vec2(viewWidth, viewHeight) * imageSize(cimage11)), vec4(vec3(0.0),1.0));
        }

        gl_FragData[7] = vec4(lightmapCoords.xy, 0.0, 1.0);
    }
#endif

#ifdef VERTEX_SHADER
    #include "/lib/includes2.glsl"
    #include "/lib/globalDefines.glsl"

    #define PATH_TRACING_GI 0 // [0 1]

    uniform mat4 dhProjection;

    out vec4 blockColor;
    out vec2 lightmapCoords;

    out vec3 playerPos;

    out float isWaterBlock;

    out vec3 Normal;
    out vec3 Tangent;

    varying float timePhase;
    varying float quadTime;
    uniform int worldTime;
    uniform int frameCounter;
    uniform float frameTime;

    in vec4 mc_Entity;

    in vec3 at_tangent;

    out vec3 block_centered_relative_pos;

    out vec3 lightmap2;

    out vec4 at_midBlock2;

    out float isFoliage;

    out float isReflective;

    out vec3 worldSpaceVertexPosition;

    out vec3 normals_face_world;

    out vec3 foot_pos;

    out vec3 view_pos;

    in vec3 at_midBlock;

    in vec3 cameraPosition;

    #include "/lib/lighting/pathTracing.glsl"

    void main() {
        Normal = (gl_NormalMatrix * gl_Normal);

        Tangent = at_tangent.xyz;

        blockColor = gl_Color;

        #if PATH_TRACING_GI == 1
                lightmap2 = GenerateLightmap(0f,1f);
        #endif
        lightmapCoords = (gl_TextureMatrix[1] * gl_MultiTexCoord1).xy;

        viewSpaceFragPosition = (gl_ModelViewMatrix * gl_Vertex).xyz;

        float timeOfDay = mod(worldTime,24000);
        quadTime = timeOfDay;
        if(timeOfDay < 250) {
            timePhase = 3;
            quadTime += 250;
        } else if(timeOfDay < 11750) {
            timePhase = 0;
            quadTime -= 250;
        } else if(timeOfDay < 12250) {
            timePhase = 1;
            quadTime -= 11750;
        } else if(timeOfDay < 23750) {
            timePhase = 2;
            quadTime -= 12250;
        } else if(timeOfDay < 24000) {
            timePhase = 3;
            quadTime -= 23250;
        }

        isWaterBlock = 0f;
        
        if(mc_Entity.x == 8.0 && mc_Entity.x != 10002) {
            isWaterBlock = 1f;
        }

        playerPos = (gbufferModelViewInverse * gl_ModelViewMatrix * gl_Vertex).xyz;

        gl_Position = ftransform();

        #ifdef WORLD_CURVATURE
            float d = length(playerPos);
            float R = 63710.0;

            float drop = (d * d) / (2.0 * R);

            gl_Position.y -= drop;
        #endif
    }
#endif