layout (local_size_x = 8, local_size_y = 8, local_size_z = 1) in;

const ivec3 workGroups = ivec3(6, 6, 1);

#ifdef IS_LPV_ENABLED
    #include "/lib/items.glsl"
    #include "/lib/blocks.glsl"
    #include "/lib/entities.glsl"
    #include "/lib/lpv_blocks.glsl"

    const vec3 LightColor_Amethyst = vec3(0.464, 0.227, 0.788);
    const vec3 LightColor_Candles = vec3(1.0, 0.4, 0.1);
    const vec3 LightColor_CopperBulb = vec3(1.0, 0.7, 0.6);
    const vec3 LightColor_LightBlock = vec3(1.0);
    const vec3 LightColor_RedstoneTorch = vec3(0.939, 0.305, 0.164);
    const vec3 LightColor_SeaPickle = vec3(0.283, 0.394, 0.212);

    const vec3 LightColor_Candles_Black = vec3(0.200);
    const vec3 LightColor_Candles_Blue = vec3(0.000, 0.259, 1.000);
    const vec3 LightColor_Candles_Brown = vec3(0.459, 0.263, 0.149);
    const vec3 LightColor_Candles_Cyan = vec3(0.000, 0.839, 0.839);
    const vec3 LightColor_Candles_Gray = vec3(0.329, 0.357, 0.388);
    const vec3 LightColor_Candles_Green = vec3(0.263, 0.451, 0.000);
    const vec3 LightColor_Candles_LightBlue = vec3(0.153, 0.686, 1.000);
    const vec3 LightColor_Candles_LightGray = vec3(0.631, 0.627, 0.624);
    const vec3 LightColor_Candles_Lime = vec3(0.439, 0.890, 0.000);
    const vec3 LightColor_Candles_Magenta = vec3(0.757, 0.098, 0.812);
    const vec3 LightColor_Candles_Orange = vec3(1.000, 0.459, 0.000);
    const vec3 LightColor_Candles_Pink = vec3(1.000, 0.553, 0.718);
    const vec3 LightColor_Candles_Purple = vec3(0.569, 0.000, 1.000);
    const vec3 LightColor_Candles_Red = vec3(0.859, 0.000, 0.000);
    const vec3 LightColor_Candles_White = vec3(1.000);
    const vec3 LightColor_Candles_Yellow = vec3(1.000, 0.878, 0.000);

    uint BuildLpvMask(const in uint north, const in uint east, const in uint south, const in uint west, const in uint up, const in uint down) {
        return east | (west << 1) | (down << 2) | (up << 3) | (south << 4) | (north << 5);
    }

    mat4 GetSaturationMatrix(const in float saturation) {
        const vec3 luminance = vec3(0.3086, 0.6094, 0.0820);
        
        vec3 lumSat = luminance * (1.0 - saturation);
        vec2 satZero = vec2(saturation, 0.0);
        
        return mat4(
            vec4(lumSat.r + satZero.xyy, 0.0),
            vec4(lumSat.g + satZero.yxy, 0.0),
            vec4(lumSat.b + satZero.yyx, 0.0),
            vec4(0.0, 0.0, 0.0, 1.0));
    }
#endif


void main() {
    #ifdef IS_LPV_ENABLED
        int blockId = int(gl_GlobalInvocationID.x + gl_GlobalInvocationID.y * 48);
        if (blockId >= 2048) return;

        vec3 lightColor = vec3(0.0);
        float lightRange = 0.0;
        float mixWeight = 0.0;
        uint mixMask = 0xFFFF;
        vec3 tintColor = vec3(1.0);

        if (blockId == BLOCK_SSS_WEAK || blockId == BLOCK_SSS_WEAK_3 || blockId == BLOCK_SSS_STRONG) {
            mixWeight = 1.0;
        }

        switch (blockId) {
            case BLOCK_WATER:
                mixWeight = 0.8;
                break;

            case BLOCK_BAMBOO:
                mixWeight = 0.8;
                break;

            case BLOCK_GRASS_SHORT:
            case BLOCK_GRASS_TALL_UPPER:
            case BLOCK_GRASS_TALL_LOWER:
                mixWeight = 0.85;
                break;

            case BLOCK_GROUND_WAVING:
            case BLOCK_GROUND_WAVING_VERTICAL:
            case BLOCK_AIR_WAVING:
                mixWeight = 0.9;
                break;

            case BLOCK_SAPLING:
                mixWeight = 0.9;
                break;
        }

        // lightsources

        if (blockId == BLOCK_AMETHYST_BUD_LARGE || blockId == ITEM_AMETHYST_BUD_LARGE) {
            lightColor = LightColor_Amethyst;
            lightRange = 4.0;
            mixWeight = 0.6;
        }

        if (blockId == BLOCK_AMETHYST_BUD_MEDIUM || blockId == ITEM_AMETHYST_BUD_MEDIUM) {
            lightColor = LightColor_Amethyst;
            lightRange = 2.0;
            mixWeight = 0.8;
        }

        if (blockId == BLOCK_AMETHYST_CLUSTER || blockId == ITEM_AMETHYST_CLUSTER) {
            lightColor = LightColor_Amethyst;
            lightRange = 5.0;
            mixWeight = 0.4;
        }

        if (blockId == BLOCK_BEACON || blockId == ITEM_BEACON) {
            lightColor = vec3(1.0);
            lightRange = 15.0;
        }

        if (blockId == BLOCK_BREWING_STAND) {
            lightColor = vec3(0.636, 0.509, 0.179);
            lightRange = 1.0;
            mixWeight = 0.8;
        }

        if (blockId == BLOCK_ENCHANTING_TABLE) {
            lightColor = vec3(0.416, 0.509, 0.979);
            lightRange = 10.0;
            mixWeight = 0.1;
        }

        #ifdef LPV_COLORED_CANDLES
            if (blockId >= BLOCK_CANDLES_PLAIN_LIT_1 && blockId <= BLOCK_CANDLES_YELLOW_LIT_4) {
                switch (blockId) {
                    case BLOCK_CANDLES_PLAIN_LIT_1:
                        lightColor = LightColor_Candles;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_PLAIN_LIT_2:
                        lightColor = LightColor_Candles;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_PLAIN_LIT_3:
                        lightColor = LightColor_Candles;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_PLAIN_LIT_4:
                        lightColor = LightColor_Candles;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_BLACK_LIT_1:
                        lightColor = LightColor_Candles_Black;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_BLACK_LIT_2:
                        lightColor = LightColor_Candles_Black;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_BLACK_LIT_3:
                        lightColor = LightColor_Candles_Black;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_BLACK_LIT_4:
                        lightColor = LightColor_Candles_Black;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_BLUE_LIT_1:
                        lightColor = LightColor_Candles_Blue;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_BLUE_LIT_2:
                        lightColor = LightColor_Candles_Blue;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_BLUE_LIT_3:
                        lightColor = LightColor_Candles_Blue;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_BLUE_LIT_4:
                        lightColor = LightColor_Candles_Blue;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_BROWN_LIT_1:
                        lightColor = LightColor_Candles_Brown;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_BROWN_LIT_2:
                        lightColor = LightColor_Candles_Brown;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_BROWN_LIT_3:
                        lightColor = LightColor_Candles_Brown;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_BROWN_LIT_4:
                        lightColor = LightColor_Candles_Brown;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_CYAN_LIT_1:
                        lightColor = LightColor_Candles_Cyan;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_CYAN_LIT_2:
                        lightColor = LightColor_Candles_Cyan;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_CYAN_LIT_3:
                        lightColor = LightColor_Candles_Cyan;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_CYAN_LIT_4:
                        lightColor = LightColor_Candles_Cyan;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_GRAY_LIT_1:
                        lightColor = LightColor_Candles_Gray;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_GRAY_LIT_2:
                        lightColor = LightColor_Candles_Gray;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_GRAY_LIT_3:
                        lightColor = LightColor_Candles_Gray;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_GRAY_LIT_4:
                        lightColor = LightColor_Candles_Gray;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_GREEN_LIT_1:
                        lightColor = LightColor_Candles_Green;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_GREEN_LIT_2:
                        lightColor = LightColor_Candles_Green;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_GREEN_LIT_3:
                        lightColor = LightColor_Candles_Green;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_GREEN_LIT_4:
                        lightColor = LightColor_Candles_Green;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_LIGHT_BLUE_LIT_1:
                        lightColor = LightColor_Candles_LightBlue;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_LIGHT_BLUE_LIT_2:
                        lightColor = LightColor_Candles_LightBlue;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_LIGHT_BLUE_LIT_3:
                        lightColor = LightColor_Candles_LightBlue;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_LIGHT_BLUE_LIT_4:
                        lightColor = LightColor_Candles_LightBlue;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_LIGHT_GRAY_LIT_1:
                        lightColor = LightColor_Candles_LightGray;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_LIGHT_GRAY_LIT_2:
                        lightColor = LightColor_Candles_LightGray;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_LIGHT_GRAY_LIT_3:
                        lightColor = LightColor_Candles_LightGray;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_LIGHT_GRAY_LIT_4:
                        lightColor = LightColor_Candles_LightGray;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_LIME_LIT_1:
                        lightColor = LightColor_Candles_Lime;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_LIME_LIT_2:
                        lightColor = LightColor_Candles_Lime;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_LIME_LIT_3:
                        lightColor = LightColor_Candles_Lime;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_LIME_LIT_4:
                        lightColor = LightColor_Candles_Lime;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_MAGENTA_LIT_1:
                        lightColor = LightColor_Candles_Magenta;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_MAGENTA_LIT_2:
                        lightColor = LightColor_Candles_Magenta;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_MAGENTA_LIT_3:
                        lightColor = LightColor_Candles_Magenta;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_MAGENTA_LIT_4:
                        lightColor = LightColor_Candles_Magenta;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_ORANGE_LIT_1:
                        lightColor = LightColor_Candles_Orange;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_ORANGE_LIT_2:
                        lightColor = LightColor_Candles_Orange;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_ORANGE_LIT_3:
                        lightColor = LightColor_Candles_Orange;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_ORANGE_LIT_4:
                        lightColor = LightColor_Candles_Orange;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_PINK_LIT_1:
                        lightColor = LightColor_Candles_Pink;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_PINK_LIT_2:
                        lightColor = LightColor_Candles_Pink;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_PINK_LIT_3:
                        lightColor = LightColor_Candles_Pink;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_PINK_LIT_4:
                        lightColor = LightColor_Candles_Pink;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_PURPLE_LIT_1:
                        lightColor = LightColor_Candles_Purple;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_PURPLE_LIT_2:
                        lightColor = LightColor_Candles_Purple;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_PURPLE_LIT_3:
                        lightColor = LightColor_Candles_Purple;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_PURPLE_LIT_4:
                        lightColor = LightColor_Candles_Purple;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_RED_LIT_1:
                        lightColor = LightColor_Candles_Red;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_RED_LIT_2:
                        lightColor = LightColor_Candles_Red;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_RED_LIT_3:
                        lightColor = LightColor_Candles_Red;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_RED_LIT_4:
                        lightColor = LightColor_Candles_Red;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_WHITE_LIT_1:
                        lightColor = LightColor_Candles_White;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_WHITE_LIT_2:
                        lightColor = LightColor_Candles_White;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_WHITE_LIT_3:
                        lightColor = LightColor_Candles_White;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_WHITE_LIT_4:
                        lightColor = LightColor_Candles_White;
                        lightRange = 12.0;
                        break;

                    case BLOCK_CANDLES_YELLOW_LIT_1:
                        lightColor = LightColor_Candles_Yellow;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_YELLOW_LIT_2:
                        lightColor = LightColor_Candles_Yellow;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_YELLOW_LIT_3:
                        lightColor = LightColor_Candles_Yellow;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_YELLOW_LIT_4:
                        lightColor = LightColor_Candles_Yellow;
                        lightRange = 12.0;
                        break;
                }
        #else
            if (blockId >= BLOCK_CANDLES_LIT_1 && blockId <= BLOCK_CANDLES_LIT_4) {
                switch (blockId) {
                    case BLOCK_CANDLES_LIT_1:
                        lightColor = LightColor_Candles;
                        lightRange = 3.0;
                        break;
                    case BLOCK_CANDLES_LIT_2:
                        lightColor = LightColor_Candles;
                        lightRange = 6.0;
                        break;
                    case BLOCK_CANDLES_LIT_3:
                        lightColor = LightColor_Candles;
                        lightRange = 9.0;
                        break;
                    case BLOCK_CANDLES_LIT_4:
                        lightColor = LightColor_Candles;
                        lightRange = 12.0;
                        break;
                }
        #endif

            mixWeight = 1.0;
        }

        if (blockId == ITEM_BLAZE_ROD) {
            // TODO
        }

        if (blockId == BLOCK_CAVE_VINE_BERRIES || blockId == ITEM_GLOW_BERRIES) {
            lightColor = vec3(1.0, 1.0, 0.1);
            
            lightRange = 11.0;
            mixWeight = 1.0;
        }

        #ifdef LPV_REDSTONE_LIGHTS
            if (blockId == BLOCK_COMPARATOR_LIT) {
                lightColor = LightColor_RedstoneTorch;
                lightRange = 4.0;
            }
        #endif

        switch (blockId) {
            case BLOCK_COPPER_BULB_LIT:
                lightColor = LightColor_CopperBulb;
                lightRange = 15.0;
                break;
            case BLOCK_COPPER_BULB_EXPOSED_LIT:
                lightColor = LightColor_CopperBulb;
                lightRange = 12.0;
                break;
            case BLOCK_COPPER_BULB_OXIDIZED_LIT:
                lightColor = LightColor_CopperBulb;
                lightRange = 4.0;
                break;
            case BLOCK_COPPER_BULB_WEATHERED_LIT:
                lightColor = LightColor_CopperBulb;
                lightRange = 8.0;
                break;
            case BLOCK_CONDUIT:
                lightColor = vec3(1.0);
                lightRange = 15.0;
                break;
        }

        if (blockId == BLOCK_CRYING_OBSIDIAN) {
            lightColor = vec3(0.390, 0.065, 0.646);
            lightRange = 10.0;
        }

        if (blockId == BLOCK_END_GATEWAY) {
            lightColor = vec3(1.0);
            lightRange = 15.0;
        }

        if (blockId == BLOCK_END_ROD || blockId == ITEM_END_ROD) {
            lightColor = vec3(0.957, 0.929, 0.875);
            // lightColor = vec3(0.8, 0.3, 1.0);
            lightRange = 14.0;
        }

        if (blockId == BLOCK_FIRE) {
            lightColor = vec3(0.864, 0.598, 0.348);
            lightRange = 15.0;
            mixWeight = 1.0;
        }

        if (blockId == BLOCK_FIRE_FLIES) {
            lightColor = vec3(0.729, 0.639, 0.31);
            lightRange = 2.0;
            mixWeight = 1.0;
        }

        if (blockId == BLOCK_FROGLIGHT_OCHRE || blockId == ITEM_FROGLIGHT_OCHRE) {
            lightColor = vec3(0.768, 0.648, 0.108);
            lightRange = 15.0;
        }

        if (blockId == BLOCK_FROGLIGHT_PEARLESCENT || blockId == ITEM_FROGLIGHT_PEARLESCENT) {
            lightColor = vec3(0.737, 0.435, 0.658);
            lightRange = 15.0;
        }

        if (blockId == BLOCK_FROGLIGHT_VERDANT || blockId == ITEM_FROGLIGHT_VERDANT) {
            lightColor = vec3(0.463, 0.763, 0.409);
            lightRange = 15.0;
        }

        if (blockId == BLOCK_FURNACE_LIT) {
            lightColor = vec3(0.8, 0.7, 0.1);
            lightRange = 13.0;
        }

        if (blockId == BLOCK_GLOW_LICHEN || blockId == ITEM_GLOW_LICHEN) {
            lightColor = vec3(0.1, 0.2, 0.12);
            lightRange = 7.0;
        }

        if (blockId == BLOCK_GLOWSTONE || blockId == ITEM_GLOWSTONE) {
            lightColor = vec3(0.747, 0.594, 0.326);
            lightRange = 15.0;
        }

        if (blockId == ITEM_GLOWSTONE_DUST) {
            lightColor = vec3(0.747, 0.594, 0.326);
            lightRange = 8.0;
        }

        if (blockId == BLOCK_JACK_O_LANTERN || blockId == ITEM_JACK_O_LANTERN) {
            lightColor = vec3(0.864, 0.598, 0.348);
            lightRange = 15.0;
        }

        if (blockId == BLOCK_LANTERN || blockId == ITEM_LANTERN) {
            lightColor = vec3(0.839, 0.541, 0.2);
            lightRange = 15.0;
            mixWeight = 0.8;
        }

        if (blockId == BLOCK_LAVA) {
            lightColor = vec3(0.959, 0.302, 0.106);
            lightRange = 15.0;
        }
        else if (blockId == ITEM_LAVA_BUCKET) {
            lightColor = vec3(0.759, 0.302, 0.106);
            lightRange = 8.0;
        }

        if (blockId >= BLOCK_LIGHT_1 && blockId <= BLOCK_LIGHT_15) {
            lightColor = LightColor_LightBlock;
            mixWeight = 1.0;

            switch (blockId) {
                case BLOCK_LIGHT_1:
                    lightRange = 1;
                    break;
                case BLOCK_LIGHT_2:
                    lightRange = 2;
                    break;
                case BLOCK_LIGHT_3:
                    lightRange = 3;
                    break;
                case BLOCK_LIGHT_4:
                    lightRange = 4;
                    break;
                case BLOCK_LIGHT_5:
                    lightRange = 5;
                    break;
                case BLOCK_LIGHT_6:
                    lightRange = 6;
                    break;
                case BLOCK_LIGHT_7:
                    lightRange = 7;
                    break;
                case BLOCK_LIGHT_8:
                    lightRange = 8;
                    break;
                case BLOCK_LIGHT_9:
                    lightRange = 9;
                    break;
                case BLOCK_LIGHT_10:
                    lightRange = 10;
                    break;
                case BLOCK_LIGHT_11:
                    lightRange = 11;
                    break;
                case BLOCK_LIGHT_12:
                    lightRange = 12;
                    break;
                case BLOCK_LIGHT_13:
                    lightRange = 13;
                    break;
                case BLOCK_LIGHT_14:
                    lightRange = 14;
                    break;
                case BLOCK_LIGHT_15:
                    lightRange = 15;
                    break;
            }
        }

        if (blockId == BLOCK_MAGMA || blockId == ITEM_MAGMA) {
            lightColor = vec3(0.747, 0.323, 0.110);
            lightRange = 3.0;
            mixWeight = 0.0;
        }

        if (blockId == BLOCK_RAIL_POWERED_ON) {
            lightColor = LightColor_RedstoneTorch;
            lightRange = 7.0;
            mixWeight = 0.9;
        }

        if (blockId == BLOCK_REDSTONE_LAMP_LIT) {
            lightColor = vec3(0.953, 0.796, 0.496);
            lightRange = 15.0;
            mixWeight = 0.0;
        }

        if (blockId == BLOCK_REDSTONE_ORE_LIT || blockId == BLOCK_DEEPSLATE_REDSTONE_ORE_LIT) {
            lightColor = LightColor_RedstoneTorch;
            lightRange = 7.0;
            mixWeight = 0.0;
        }

        if (blockId == BLOCK_REDSTONE_TORCH_LIT || blockId == ITEM_REDSTONE_TORCH) {
            lightColor = LightColor_RedstoneTorch;
            lightRange = 7.0;
            mixWeight = 0.9;
        }

        switch (blockId) {
        #ifdef LPV_REDSTONE_LIGHTS
            case BLOCK_REDSTONE_WIRE_1:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 0.5;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_2:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 1.0;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_3:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 1.5;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_4:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 2.0;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_5:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 2.5;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_6:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 3.0;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_7:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 3.5;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_8:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 4.0;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_9:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 4.5;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_10:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 5.0;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_11:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 5.5;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_12:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 6.0;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_13:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 6.5;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_14:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 7.0;
                mixWeight = 1.0;
                break;
            case BLOCK_REDSTONE_WIRE_15:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 7.5;
                mixWeight = 1.0;
                break;

            case BLOCK_REPEATER_LIT:
                lightColor = LightColor_RedstoneTorch;
                lightRange = 4.0;
                mixWeight = 1.0;
                break;
        #endif

            case BLOCK_RESPAWN_ANCHOR_4:
                lightColor = vec3(1.0, 0.2, 1.0);
                lightRange = 15.0;
                break;
            case BLOCK_SCULK_SENSOR_ACTIVE:
                lightColor = vec3(0.1, 0.4, 1.0);
                lightRange = 1.0;
                break;
            case BLOCK_SEA_PICKLE_WET_1:
                lightColor = LightColor_SeaPickle;
                lightRange = 6.0;
                mixWeight = 1.0;
                break;
            case BLOCK_SEA_PICKLE_WET_2:
                lightColor = LightColor_SeaPickle;
                lightRange = 9.0;
                mixWeight = 1.0;
                break;
            case BLOCK_SEA_PICKLE_WET_3:
                lightColor = LightColor_SeaPickle;
                lightRange = 12.0;
                mixWeight = 1.0;
                break;
            case BLOCK_SEA_PICKLE_WET_4:
                lightColor = LightColor_SeaPickle;
                lightRange = 15.0;
                mixWeight = 1.0;
                break;
        }
        
        if (blockId == BLOCK_SEA_LANTERN || blockId == ITEM_SEA_LANTERN) {
            lightColor = vec3(0.553, 0.748, 0.859);
            lightRange = 15.0;
        }

        if (blockId == BLOCK_SHROOMLIGHT || blockId == ITEM_SHROOMLIGHT) {
            lightColor = vec3(0.848, 0.469, 0.205);
            lightRange = 15.0;
        }

        if (blockId == BLOCK_SOUL_FIRE) {
            lightColor = vec3(0.1, 0.6, 1.0);
            lightRange = 10.0;
            mixWeight = 1.0;
        }

        if (
            blockId == BLOCK_SOUL_TORCH || blockId == ITEM_SOUL_TORCH ||
            blockId == BLOCK_SOUL_LANTERN || blockId == ITEM_SOUL_LANTERN
        ) {
            lightColor = vec3(0.1, 0.6, 1.0);
            lightRange = 10.0;
            mixWeight = 0.8;
        }

        if (
            blockId == BLOCK_COPPER_LANTERN || blockId == ITEM_COPPER_LANTERN
        ) {
            lightColor = vec3(0.1, 0.8, 0.3);
            lightRange = 10.0;
            mixWeight = 0.8;
        }

        if (blockId == BLOCK_TORCH || blockId == ITEM_TORCH ||
            blockId == BLOCK_LANTERN || blockId == ITEM_LANTERN
        ) {
            lightColor = vec3(TORCH_R, TORCH_G, TORCH_B);
            lightRange = 14.0;
            mixWeight = 0.8;
        }

        if (
            blockId == WISPJELLY
        ) {
            lightColor = vec3(0.1, 0.1, 0.1);
            lightRange = 2.0;
            mixWeight = 0.2;
        }

        if (blockId >= BLOCK_LAMP_LIT_BLACK && blockId <= BLOCK_LAMP_LIT_YELLOW) {
            lightRange = 15.0;
            mixWeight = 0.25;

            switch (blockId) {
                case BLOCK_LAMP_LIT_BLACK:
                    lightColor = LightColor_Candles_Black;
                    break;
                case BLOCK_LAMP_LIT_BLUE:
                    lightColor = LightColor_Candles_Blue;
                    break;
                case BLOCK_LAMP_LIT_BROWN:
                    lightColor = LightColor_Candles_Brown;
                    break;
                case BLOCK_LAMP_LIT_CYAN:
                    lightColor = LightColor_Candles_Cyan;
                    break;
                case BLOCK_LAMP_LIT_GRAY:
                    lightColor = LightColor_Candles_Gray;
                    break;
                case BLOCK_LAMP_LIT_GREEN:
                    lightColor = LightColor_Candles_Green;
                    break;
                case BLOCK_LAMP_LIT_LIGHT_BLUE:
                    lightColor = LightColor_Candles_LightBlue;
                    break;
                case BLOCK_LAMP_LIT_LIGHT_GRAY:
                    lightColor = LightColor_Candles_LightGray;
                    break;
                case BLOCK_LAMP_LIT_LIME:
                    lightColor = LightColor_Candles_Lime;
                    break;
                case BLOCK_LAMP_LIT_MAGENTA:
                    lightColor = LightColor_Candles_Magenta;
                    break;
                case BLOCK_LAMP_LIT_ORANGE:
                    lightColor = LightColor_Candles_Orange;
                    break;
                case BLOCK_LAMP_LIT_PINK:
                    lightColor = LightColor_Candles_Pink;
                    break;
                case BLOCK_LAMP_LIT_PURPLE:
                    lightColor = LightColor_Candles_Purple;
                    break;
                case BLOCK_LAMP_LIT_RED:
                    lightColor = LightColor_Candles_Red;
                    break;
                case BLOCK_LAMP_LIT_WHITE:
                    lightColor = LightColor_Candles_White;
                    break;
                case BLOCK_LAMP_LIT_YELLOW:
                    lightColor = LightColor_Candles_Yellow;
                    break;
            }
        }

        // reflective translucents / glass

        switch (blockId) {
            case BLOCK_GLASS:
                tintColor = vec3(1.0);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_BLACK:
                tintColor = vec3(0.3);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_BLUE:
                tintColor = vec3(0.1, 0.1, 0.98);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_BROWN:
                tintColor = vec3(0.566, 0.388, 0.148);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_CYAN:
                tintColor = vec3(0.082, 0.533, 0.763);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_GRAY:
                tintColor = vec3(0.4, 0.4, 0.4);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_GREEN:
                tintColor = vec3(0.125, 0.808, 0.081);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_LIGHT_BLUE:
                tintColor = vec3(0.320, 0.685, 0.955);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_LIGHT_GRAY:
                tintColor = vec3(0.7);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_LIME:
                tintColor = vec3(0.633, 0.924, 0.124);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_MAGENTA:
                tintColor = vec3(0.698, 0.298, 0.847);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_ORANGE:
                tintColor = vec3(0.919, 0.586, 0.185);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_PINK:
                tintColor = vec3(0.949, 0.274, 0.497);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_PURPLE:
                tintColor = vec3(0.578, 0.170, 0.904);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_RED:
                tintColor = vec3(0.999, 0.188, 0.188);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_WHITE:
                tintColor = vec3(0.96, 0.96, 0.96);
                mixWeight = 1.0;
                break;
            case BLOCK_GLASS_YELLOW:
                tintColor = vec3(0.965, 0.965, 0.123);
                mixWeight = 1.0;
                break;
            case BLOCK_HONEY:
                tintColor = vec3(0.984, 0.733, 0.251);
                mixWeight = 1.0;
                break;
            case BLOCK_NETHER_PORTAL:
                lightColor = vec3(0.502, 0.165, 0.831);
                tintColor = vec3(0.502, 0.165, 0.831);
                lightRange = 11.0;
                mixWeight = 1.0;
                break;
            case BLOCK_SLIME:
                tintColor = vec3(0.408, 0.725, 0.329);
                mixWeight = 1.0;
                break;
            case WISPJELLY:
                tintColor = vec3(0.27, 0.32, 0.39);
                mixWeight = 1.0;
                break;

        // LPV shapes

            case BLOCK_LPV_IGNORE:
                mixWeight = 1.00;
                break;
            case BLOCK_LPV_MIN:
                mixWeight = 0.75;
                break;
            case BLOCK_LPV_MED:
                mixWeight = 0.50;
                break;
            case BLOCK_LPV_MAX:
                mixWeight = 0.25;
                break;

            case BLOCK_CARPET:
                mixMask = BuildLpvMask(1u, 1u, 1u, 1u, 1u, 0u);
                mixWeight = 0.9;
                break;
            case BLOCK_SCULK_VEIN:
                mixMask = BuildLpvMask(1u, 1u, 1u, 1u, 1u, 0u);
                mixWeight = 0.9;
                break;
            case BLOCK_GLOW_LICHEN:
                mixWeight = 1.00;
                break;
            case BLOCK_VINE:
                mixWeight = 1.00;
                break;
            case BLOCK_VINE_OTHER:
                mixWeight = 0.5;
                break;

            case BLOCK_DOOR_N:
                mixMask = BuildLpvMask(0u, 1u, 1u, 1u, 1u, 1u);
                mixWeight = 0.8;
                break;
            case BLOCK_DOOR_E:
                mixMask = BuildLpvMask(1u, 0u, 1u, 1u, 1u, 1u);
                mixWeight = 0.8;
                break;
            case BLOCK_DOOR_S:
                mixMask = BuildLpvMask(1u, 1u, 0u, 1u, 1u, 1u);
                mixWeight = 0.8;
                break;
            case BLOCK_DOOR_W:
                mixMask = BuildLpvMask(1u, 1u, 1u, 0u, 1u, 1u);
                mixWeight = 0.8;
                break;

            case BLOCK_PRESSURE_PLATE:
                mixMask = BuildLpvMask(1u, 1u, 1u, 1u, 1u, 0u);
                mixWeight = 0.9;
                break;

            case BLOCK_SLAB_TOP:
                mixMask = BuildLpvMask(1u, 1u, 1u, 1u, 0u, 1u);
                mixWeight = 0.5;
                break;
            case BLOCK_SLAB_BOTTOM:
            case BLOCK_SNOW_LAYERS:
                mixMask = BuildLpvMask(1u, 1u, 1u, 1u, 1u, 0u);
                mixWeight = 0.5;
                break;

            case BLOCK_TRAPDOOR_BOTTOM:
                mixMask = BuildLpvMask(1u, 1u, 1u, 1u, 1u, 0u);
                mixWeight = 0.8;
                break;
            case BLOCK_TRAPDOOR_TOP:
                mixMask = BuildLpvMask(1u, 1u, 1u, 1u, 0u, 1u);
                mixWeight = 0.8;
                break;
            case BLOCK_TRAPDOOR_N:
                mixMask = BuildLpvMask(0u, 1u, 1u, 1u, 1u, 1u);
                mixWeight = 0.8;
                break;
            case BLOCK_TRAPDOOR_E:
                mixMask = BuildLpvMask(1u, 0u, 1u, 1u, 1u, 1u);
                mixWeight = 0.8;
                break;
            case BLOCK_TRAPDOOR_S:
                mixMask = BuildLpvMask(1u, 1u, 0u, 1u, 1u, 1u);
                mixWeight = 0.8;
                break;
            case BLOCK_TRAPDOOR_W:
                mixMask = BuildLpvMask(1u, 1u, 1u, 0u, 1u, 1u);
                mixWeight = 0.8;
                break;
        }

        // STAIRS
        if (blockId >= BLOCK_STAIRS_BOTTOM_N && blockId <= BLOCK_STAIRS_TOP_OUTER_S_W) {
            mixWeight = 0.25;

            switch (blockId) {
                case BLOCK_STAIRS_BOTTOM_N:
                    mixMask = BuildLpvMask(1u, 1u, 0u, 1u, 1u, 0u);
                    break;
                case BLOCK_STAIRS_BOTTOM_E:
                    mixMask = BuildLpvMask(1u, 1u, 1u, 0u, 1u, 0u);
                    break;
                case BLOCK_STAIRS_BOTTOM_S:
                    mixMask = BuildLpvMask(0u, 1u, 1u, 1u, 1u, 0u);
                    break;
                case BLOCK_STAIRS_BOTTOM_W:
                    mixMask = BuildLpvMask(1u, 0u, 1u, 1u, 1u, 0u);
                    break;
                case BLOCK_STAIRS_BOTTOM_INNER_S_E:
                    mixMask = BuildLpvMask(0u, 1u, 1u, 0u, 0u, 1u);
                    break;
                case BLOCK_STAIRS_BOTTOM_INNER_S_W:
                    mixMask = BuildLpvMask(0u, 0u, 1u, 1u, 0u, 1u);
                    break;
                case BLOCK_STAIRS_BOTTOM_INNER_N_W:
                    mixMask = BuildLpvMask(1u, 0u, 0u, 1u, 0u, 1u);
                    break;
                case BLOCK_STAIRS_BOTTOM_INNER_N_E:
                    mixMask = BuildLpvMask(1u, 1u, 0u, 0u, 0u, 1u);
                    break;
            }

            if (blockId >= BLOCK_STAIRS_BOTTOM_OUTER_N_W && blockId <= BLOCK_STAIRS_BOTTOM_OUTER_S_W) {
                mixMask = BuildLpvMask(1u, 1u, 1u, 1u, 0u, 1u);
            }

            switch (blockId) {
                case BLOCK_STAIRS_TOP_N:
                    mixMask = BuildLpvMask(1u, 1u, 0u, 1u, 0u, 1u);
                    break;
                case BLOCK_STAIRS_TOP_E:
                    mixMask = BuildLpvMask(1u, 1u, 1u, 0u, 0u, 1u);
                    break;
                case BLOCK_STAIRS_TOP_S:
                    mixMask = BuildLpvMask(0u, 1u, 1u, 1u, 0u, 1u);
                    break;
                case BLOCK_STAIRS_TOP_W:
                    mixMask = BuildLpvMask(1u, 0u, 1u, 1u, 0u, 1u);
                    break;
                case BLOCK_STAIRS_TOP_INNER_S_E:
                    mixMask = BuildLpvMask(0u, 1u, 1u, 0u, 0u, 1u);
                    break;
                case BLOCK_STAIRS_TOP_INNER_S_W:
                    mixMask = BuildLpvMask(0u, 0u, 1u, 1u, 0u, 1u);
                    break;
                case BLOCK_STAIRS_TOP_INNER_N_W:
                    mixMask = BuildLpvMask(1u, 0u, 0u, 1u, 0u, 1u);
                    break;
                case BLOCK_STAIRS_TOP_INNER_N_E:
                    mixMask = BuildLpvMask(1u, 1u, 0u, 0u, 0u, 1u);
                    break;
            }

            if (blockId >= BLOCK_STAIRS_TOP_OUTER_N_W && blockId <= BLOCK_STAIRS_TOP_OUTER_S_W) {
                mixMask = BuildLpvMask(1u, 1u, 1u, 1u, 0u, 1u);
            }
        }

        // WALL
        if (blockId >= BLOCK_WALL_MIN && blockId <= BLOCK_WALL_MAX) {
            mixWeight = 0.25;

            if (blockId == BLOCK_WALL_POST_TALL_ALL || blockId == BLOCK_WALL_TALL_ALL
                  || blockId == BLOCK_WALL_POST_TALL_N_W_S
                  || blockId == BLOCK_WALL_POST_TALL_N_E_S
                  || blockId == BLOCK_WALL_POST_TALL_W_N_E
                  || blockId == BLOCK_WALL_POST_TALL_W_S_E) {
                mixMask = BuildLpvMask(0u, 0u, 0u, 0u, 1u, 1u);
                mixWeight = 0.125;
            }
            else if (blockId == BLOCK_WALL_POST_TALL_N_S || blockId == BLOCK_WALL_TALL_N_S) {
                mixMask = BuildLpvMask(1u, 0u, 1u, 0u, 1u, 1u);
            }
            else if (blockId == BLOCK_WALL_POST_TALL_W_E || blockId == BLOCK_WALL_TALL_W_E) {
                mixMask = BuildLpvMask(0u, 1u, 0u, 1u, 1u, 1u);
            }
            // TODO: more walls
        }

        // Misc

        if (blockId == BLOCK_SIGN) {
            mixWeight = 0.9;
        }

        // Entities

        if (blockId == ENTITY_BLAZE) {
            lightColor = vec3(1.000, 0.592, 0.000);
            lightRange = 8.0;
        }

        if (blockId == ENTITY_END_CRYSTAL) {
            lightColor = vec3(1.000, 0.000, 1.000);
            lightRange = 10.0;
        }

        if (blockId == ENTITY_FIREBALL_SMALL) {
            lightColor = vec3(0.000, 1.000, 0.000);
            lightRange = 8.0;
            mixWeight = 1.0;
        }

        if (blockId == ENTITY_GLOW_SQUID) {
            lightColor = vec3(0.180, 0.675, 0.761);
            lightRange = 6.0;
            mixWeight = 0.5;
        }

        if (blockId == ENTITY_MAGMA_CUBE) {
            lightColor = vec3(0.747, 0.323, 0.110);
            lightRange = 9.0;
        }

        if (blockId == ENTITY_TNT) {
            lightColor = vec3(1.0);
            lightRange = 8.0;
        }

        if (blockId == ENTITY_SPECTRAL_ARROW) {
            lightColor = vec3(0.839, 0.541, 0.2);
            lightRange = 8.0;
            mixWeight = 1.0;
        }


        // hack to increase light (if set)
        if (lightRange > 0.0) lightRange += 1.0;

        // apply saturation changes to light color
        const float saturationF = LPV_SATURATION / 100.0;
        mat4 matSaturation = GetSaturationMatrix(saturationF);
        lightColor = (matSaturation * vec4(lightColor, 1.0)).rgb;

        // apply saturation changes to tint color
        const float tintSaturationF = LPV_TINT_SATURATION / 100.0;
        mat4 matTintSaturation = GetSaturationMatrix(tintSaturationF);
        tintColor = (matTintSaturation * vec4(tintColor, 1.0)).rgb;

        // lazy fix for migrating from mixWeight to tintColor
        tintColor *= mixWeight;

        uint lightColorRange = packUnorm4x8(vec4(lightColor, lightRange/255.0));
        uint tintColorMask = packUnorm4x8(vec4(tintColor, 0.0));
        tintColorMask |= mixMask << 24;

        imageStore(imgBlockData, blockId, uvec4(lightColorRange, tintColorMask, 0u, 0u));
    #endif
}
