o3de-azslc/tests/Advanced/input-assembler.azsl

//////////////////////////////////////////////////////////////////////////////////////
struct VertexInput1  { 
    float3 m_position : POSITION;
    float  m_color[4] : COLOR;
};

struct VertexOutput1 { float4 m_position : SV_Position; };

// MainVS1 should appear as a possible vs entry
VertexOutput1 MainVS1(VertexInput1 input, uint vtxIndex : SV_VertexID)
{
    VertexOutput1 output;
    output.m_position = float4(input.m_position, 1.0);
    return output;
}

//////////////////////////////////////////////////////////////////////////////////////
struct VertexInput2  { 
    float3 m_position : POSITION0;
    float  m_color[4] : COLOR;
    uint   m_bIndex   : BLENDINDICES;
    float  m_bWeight  : BLENDWEIGHT;
    float3 m_normal   : NORMAL3;
    float3 m_tangent  : TANGENT6;
    float3 m_bitangent: BINORMAL7;
    uint   m_primId : SV_PrimitiveID;
};

struct VertexOutput2 { float4 m_position : SV_Position; };

// MainVS2 should appear as a possible vs entry
VertexOutput2 MainVS2(VertexInput2 input, uint vtxIndex : SV_VertexID, uint instId : SV_InstanceID)
{
    VertexOutput2 output;
    output.m_position = float4(input.m_position, 1.0);
    return output;
}

//////////////////////////////////////////////////////////////////////////////////////
struct VertexInput3  { 
    float3 m_position : POSITION;
    float  m_color[4] : COLOR;
};

struct VertexOutput3 { float4 m_position : SV_Position; };

// float4 doesntHaveSemantic doesn't have a semantic so MainVS3 won't appear as a possible vs entry
VertexOutput3 MainVS3(VertexInput3 input, uint vtxIndex : SV_VertexID, float4 doesntHaveSemantic)
{
    VertexOutput3 output;
    output.m_position = float4(input.m_position, 1.0);
    return output;
}

/*
 * Error: This shader is invalid, but AZSLc shouldn't crash trying to process it
 */
 
void MainVSInvalid(InvalidInputType input)
{
}

//////////////////////////////////////////////////////////////////////////////////////
struct IALayoutPart1
{
 float3 position : POSITION;
};

struct IALayoutPart2
{
 float4 color : COLOR;
};

struct VertexOutput4 { float4 m_position : SV_Position; };

// MainVS4 uses distinct valid structs as parameters
VertexOutput4 MainVS4(IALayoutPart1 input1, IALayoutPart2 input2)
{
    VertexOutput4 output;
    output.m_position = float4(input1.position, 1.0);
    return output;
}

//////////////////////////////////////////////////////////////////////////////////////
struct VertexInput5
{
 IALayoutPart1 iaPart1;
 IALayoutPart2 iaPart2;
};

struct VertexOutput5 { float4 m_position : SV_Position; };

// VertexInput5 is a struct of structs, which is not allowed so MainVS5 won't appear as a possible vs entry
VertexOutput5 MainVS5(VertexInput5 input)
{
    VertexOutput5 output;
    output.m_position = float4(input.iaPart1.position, 1.0);
    return output;
}