Backlog/projects/content/_shaders/msl/lit_mesh.frag.msl

#include <metal_stdlib>
#include <simd/simd.h>

using namespace metal;

struct type_Uniforms
{
    float4 viewPos;
    float4 lightPosition;
    float4 directionalLight;
    float4 directionalLightColor;
    float2 screenSize;
    float lightPower;
    float time;
};

struct Scene
{
    float4x4 Model;
    uint textureMode;
    uint pad0;
    uint pad1;
    uint pad2;
};

struct type_StructuredBuffer_Scene
{
    Scene _m0[1];
};

constant float4 _88 = {};
constant float3 _90 = {};

struct main0_out
{
    float4 out_var_SV_Target0 [[color(0)]];
    float4 out_var_SV_Target1 [[color(1)]];
};

struct main0_in
{
    float2 in_var_TEXCOORD0 [[user(locn0)]];
    float3 in_var_TEXCOORD1 [[user(locn1)]];
    float3 in_var_TEXCOORD2 [[user(locn2)]];
    float4 in_var_TEXCOORD3 [[user(locn3)]];
    uint in_var_TEXCOORD4 [[user(locn4)]];
};

fragment main0_out main0(main0_in in [[stage_in]], constant type_Uniforms& Uniforms [[buffer(0)]], const device type_StructuredBuffer_Scene& scene [[buffer(1)]], texture2d<float> Texture0 [[texture(0)]], texture2d<float> Texture1 [[texture(1)]], texture2d<float> Texture2 [[texture(2)]], texture2d<float> DirectionalShadowDepthMap [[texture(3)]], sampler Sampler0 [[sampler(0)]], sampler Sampler1 [[sampler(1)]], sampler Sampler2 [[sampler(2)]], sampler DirectionalShadowSampler [[sampler(3)]])
{
    main0_out out = {};
    int _99 = int(scene._m0[in.in_var_TEXCOORD4].textureMode);
    int _100 = _99 & 240;
    float4 _134;
    if (_100 == 16)
    {
        float3 _121 = float3(Texture0.sample(Sampler0, in.in_var_TEXCOORD0).x, Texture1.sample(Sampler1, in.in_var_TEXCOORD0).x, Texture2.sample(Sampler2, in.in_var_TEXCOORD0).x) + float3(-0.0625, -0.5, -0.5);
        _134 = float4(dot(_121, float3(1.164000034332275390625, 0.0, 1.7929999828338623046875)), dot(_121, float3(1.164000034332275390625, -0.212999999523162841796875, -0.53299999237060546875)), dot(_121, float3(1.164000034332275390625, 2.111999988555908203125, 0.0)), 1.0);
    }
    else
    {
        float4 _133;
        if (_100 == 0)
        {
            _133 = Texture0.sample(Sampler0, in.in_var_TEXCOORD0);
        }
        else
        {
            _133 = _88;
        }
        _134 = _133;
    }
    float4 _140;
    if ((_99 & 1) == 1)
    {
        _140 = powr(_134, float4(2.2000000476837158203125));
    }
    else
    {
        _140 = _134;
    }
    if (_140.w < 0.00999999977648258209228515625)
    {
        discard_fragment();
    }
    float3 _150 = float3(0.800000011920928955078125, 0.800000011920928955078125, 0.5) * Uniforms.lightPower;
    float3 _197;
    do
    {
        float3 _154 = Uniforms.lightPosition.xyz - in.in_var_TEXCOORD1;
        float _155 = length(_154);
        float _156 = _155 * _155;
        float _162;
        if (_155 > 2.0)
        {
            _162 = 0.5 / _156;
        }
        else
        {
            _162 = 1.0 / _156;
        }
        float _167;
        if (_155 > 4.0)
        {
            _167 = _162 * 0.5;
        }
        else
        {
            _167 = _162;
        }
        float _169 = (_155 > 15.0) ? 0.0 : _167;
        float _171 = (_169 > 1.0) ? 1.0 : _169;
        if (length(in.in_var_TEXCOORD2) < 0.100000001490116119384765625)
        {
            _197 = (in.in_var_TEXCOORD1 * _150) * _171;
            break;
        }
        float3 _178 = fast::normalize(_154);
        _197 = ((_150 * precise::max(dot(_178, in.in_var_TEXCOORD2), 0.0)) * _171) + (((_150 * powr(precise::max(dot(in.in_var_TEXCOORD2, fast::normalize(_178 + fast::normalize(in.in_var_TEXCOORD1 - Uniforms.viewPos.xyz))), 0.0), 30.0)) * 2.0) * _171);
        break;
    } while(false);
    float3 _214 = ((in.in_var_TEXCOORD3.xyz / float3(in.in_var_TEXCOORD3.w)) * 0.5) + float3(0.5);
    float3 _216;
    _216.x = _214.x;
    float2 _217 = _216.xy;
    _217.y = -_214.y;
    float _224;
    int _227;
    int _229;
    _224 = 0.0;
    _227 = 0;
    _229 = -4;
    float _225;
    int _228;
    for (; _229 <= 4; _224 = _225, _227 = _228, _229++)
    {
        _228 = _227;
        _225 = _224;
        for (int _238 = -4; _238 <= 4; )
        {
            _228++;
            _225 += float((in.in_var_TEXCOORD3.z - 0.004999999888241291046142578125) > DirectionalShadowDepthMap.sample(DirectionalShadowSampler, (_217 + float2(float(_238) * 0.000244140625, float(_229) * 0.000244140625))).x);
            _238++;
            continue;
        }
    }
    float3 _267;
    if ((_99 & 2) > 0)
    {
        _267 = _140.xyz * 2.0;
    }
    else
    {
        _267 = _140.xyz * ((float3(0.100000001490116119384765625) + _197) + ((Uniforms.directionalLightColor.xyz * precise::max(dot(Uniforms.directionalLight.xyz, in.in_var_TEXCOORD2), 0.0)) * (1.0 - (_224 / float(_227)))));
    }
    float4 _276;
    if (_267.x > 1.0)
    {
        float4 _275 = float4(0.0, 0.0, 0.0, 1.0);
        _275.x = _267.x;
        _276 = _275;
    }
    else
    {
        _276 = float4(0.0, 0.0, 0.0, 1.0);
    }
    float4 _281;
    if (_267.y > 1.0)
    {
        float4 _280 = _276;
        _280.y = _267.y;
        _281 = _280;
    }
    else
    {
        _281 = _276;
    }
    float4 _286;
    if (_267.z > 1.0)
    {
        float4 _285 = _281;
        _285.z = _267.z;
        _286 = _285;
    }
    else
    {
        _286 = _281;
    }
    out.out_var_SV_Target0 = float4(_267, _140.w);
    out.out_var_SV_Target1 = _286;
    return out;
}