mirror of
https://github.com/scratchfoundation/bgfx.git
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64 lines
1.8 KiB
Text
64 lines
1.8 KiB
Text
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#include <metal_stdlib>
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using namespace metal;
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struct xlatMtlShaderInput {
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float4 var_uv;
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};
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struct xlatMtlShaderOutput {
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half4 out_data [[color(0)]];
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};
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struct xlatMtlShaderUniform {
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float uni1;
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half4 uni4;
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half _AtmosphereThickness;
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};
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fragment xlatMtlShaderOutput xlatMtlMain (xlatMtlShaderInput _mtl_i [[stage_in]], constant xlatMtlShaderUniform& _mtl_u [[buffer(0)]]
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, texture2d<half> tex1 [[texture(0)]], sampler _mtlsmp_tex1 [[sampler(0)]])
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{
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xlatMtlShaderOutput _mtl_o;
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float mut_uni1_1;
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half4 mut_uni4_2;
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float kKrESun_3;
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float kKr4PI_4;
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mut_uni4_2.zw = _mtl_u.uni4.zw;
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half tmpvar_5_5;
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half tmpvar_3_6;
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half4 c_7;
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c_7.yzw = half3(float3(0.0, 0.0, 0.0));
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c_7.x = _mtl_u.uni4.x;
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float3 tmpvar_8;
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float2 uv_9;
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uv_9 = _mtl_i.var_uv.xy;
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mut_uni4_2.xy = half2(uv_9);
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half3 tmpvar_10;
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tmpvar_10 = tex1.sample(_mtlsmp_tex1, (float2)(mut_uni4_2.xy)).xyz;
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tmpvar_8 = float3(tmpvar_10);
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c_7.xyz = half3(((float3)c_7.xyz + tmpvar_8));
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c_7.z = half(((float)c_7.z + _mtl_u.uni1));
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mut_uni1_1 = (_mtl_u.uni1 + 2.0);
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c_7.w = half(mut_uni1_1);
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half tmpvar_11;
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tmpvar_11 = pow (_mtl_u._AtmosphereThickness, (half)2.5);
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tmpvar_3_6 = ((half)0.05 * tmpvar_11);
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kKrESun_3 = float(tmpvar_3_6);
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tmpvar_5_5 = (tmpvar_11 * (half)0.031416);
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kKr4PI_4 = float(tmpvar_5_5);
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if ((_mtl_i.var_uv.x > 0.5)) {
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float tmpvar_12;
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tmpvar_12 = pow (kKrESun_3, kKr4PI_4);
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c_7.x = half(((float)c_7.x + tmpvar_12));
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};
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_mtl_o.out_data = c_7;
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return _mtl_o;
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}
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// stats: 10 alu 1 tex 1 flow
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// inputs: 1
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// #0: var_uv (high float) 4x1 [-1]
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// uniforms: 3 (total size: 18)
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// #0: uni1 (high float) 1x1 [-1] loc 0
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// #1: uni4 (medium float) 4x1 [-1] loc 8
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// #2: _AtmosphereThickness (medium float) 1x1 [-1] loc 16
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// textures: 1
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// #0: tex1 (low 2d) 0x0 [-1] loc 0
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