o3de-azslc/tests/Advanced/srg-layouts.azsl

ShaderResourceGroupSemantic ExampleBinding { FrequencyId = 0; };

ShaderResourceGroup ExampleSRG : ExampleBinding
{
    // This sample structure used to test packing rules is taken from here:
    // https://github.com/Microsoft/DirectXShaderCompiler/blob/master/docs/SPIR-V.rst
    struct S {
        float3 f;
    };

    // Packing offsets can be veryfied here:
    // http://shader-playground.timjones.io/e61c324359d57bc5914a090be821bee4
    // Packing  offset                        // ConstantBuffer         StructuredBuffer       RelaxedStd140
    struct T {
                  float    a_float;           // 0                      0                      0
                  float3   b_float3;          // 4                      4                      4
                  S        c_S_float3;        // 16                     16                     16
                  float2x3 d_float2x3;        // 32                     28                     32
        row_major float2x3 e_float2x3;        // 80                     52                     80
                  int      f_int_3[3];        // 112                    76                     112
                  float2   g_float2_2[2];     // 160                    88                     160
                  S        h_S_float3[2];     // 192                    104                    192
                  float    i_float[3][3];     // 224                    128                    224
                  S        j_S_float3[2][2];  // 368                    164                    368
    };                                        // Size is 428            Size is 212            Size is 432
    
     struct Light {     // 144 bytes  Source : https://developer.nvidia.com/content/how-about-constant-buffers
        float3 Position;
        float Radius;
        float4 Color;
        float3 AttenuationParams;
        uint Type;
        float4 SpotDirectionAndAngle;
        float4 ShadowRect;
        float4x4 ShadowMatrix;
    };

    T m_T;
    ConstantBuffer<T> m_CB_a;           // stride = 272 (relaxed) or 428 (strict)
    ConstantBuffer<T> m_CB_b[2];        // stride = 272 (relaxed) or 428 (strict)
    ConstantBuffer<Light> m_CB_c;       // stride = 144
    Buffer<float4> m_B_d;               // stride =  16
    StructuredBuffer<S> m_SB_e;         // stride =  12
    Buffer<float2> m_B_f[2];            // stride =   8
    StructuredBuffer<S> m_SB_g[2];      // stride =  12

    TextureCube m_texCube1;             // stride =  16 (default)
    Texture2D<float3> m_tex2d1;         // stride =  12
};