HLSL/GLSL Example 1

//These HLSL/GLSL pastes is "HLSL" that Diligent Engine "converts" into GLSL (it's actually GLSL with a bunch of defines and includes on top).
cbuffer Constants
{
    float4x4 g_WorldViewProj;
    float4x4 g_JointModels[255];
    float4x4 g_LinkMatrix;
    //int boneIndex;
};

struct PSInput
{
    float4 Pos : SV_POSITION;
    float4 Normal : NORMAL0;
    float4 Color : COLOR0;
    float2 Uv : TEXCOORD0;
};

// Vertex shader takes two inputs: vertex position and color.
// By convention, Diligent Engine expects vertex shader inputs to
// be labeled as ATTRIBn, where n is the attribute number
PSInput main(   float3 pos : ATTRIB0, float3 normal : ATTRIB1,uint color : ATTRIB2,float2 uv : ATTRIB3, //Vertex
                int vertexNumDummy : ATTRIB4, int index0 : ATTRIB5, float boneWeight : ATTRIB6, int index1 : ATTRIB7, float3 weldPos : ATTRIB8, float3 weldNormal : ATTRIB9) //Welding
{
    /*CONST FLOAT f = 1.0f / 255.0f;
    r = f * (FLOAT)(unsigned char) (dw >> 16);
    g = f * (FLOAT)(unsigned char) (dw >> 8);
    b = f * (FLOAT)(unsigned char) (dw >> 0);
    a = f * (FLOAT)(unsigned char) (dw >> 24);*/
    PSInput ps;
    //TODO: Remove conditional and optimize everything
    if (index0 != -1)
    {
        ps.Pos = mul(mul(float4(pos, 1.0), mul(g_LinkMatrix, g_JointModels[index0])), boneWeight);
        ps.Normal = mul(mul(float4(normal, 1.0), mul(g_LinkMatrix, g_JointModels[index0])), boneWeight);
        ps.Pos += mul(mul(float4(weldPos, 1.0), g_JointModels[index1]), 1.0f - boneWeight);
        //else ps.Pos += mul(mul(float4(pos, 1.0), mul(g_LinkMatrix, g_JointModels[index0])), 1.0f - boneWeight);
        ps.Normal += mul(mul(float4(weldNormal, 1.0), g_JointModels[index1]), 1.0f - boneWeight);
        ps.Pos = mul(ps.Pos, g_WorldViewProj);
        ps.Normal = mul(ps.Normal, g_WorldViewProj);
        /*if (vertexNumDummy == -1)
        {
            ps.Color = float4(1.0, 0.0, 0.0, 1.0);

        }
        else
        {
            ps.Color = float4(boneWeight, boneWeight, boneWeight, 1.0);
            if (index0 == index1)
            {
                ps.Color = float4(0.0, 0.0, 1.0, 1.0);
            }
        }*/
    }
    else
    {
        ps.Pos = mul(float4(pos, 1.0), g_WorldViewProj);
        ps.Normal = mul(float4(normal, 1.0), g_WorldViewProj);
        ps.Color = float4(float3(0.0, 1.0, 0.0), 1.0);
    }
    float a = ((color & 0xff000000) >> 24);
    float r = ((color & 0xff0000) >> 16);
    float g = ((color & 0xff00) >> 8);
    float b = ((color & 0xff));
    /*if(vertexNumDummy == -1) */ps.Color = float4(r, g, b, a) / 255.0;
    //else ps.Color = float4(float3(boneWeight, 0.0, 0.0), 1.0);

    ps.Uv = uv;
    return ps;
}