// ExampleShader.usf

// Include common material functions
#include "Common.usf"

// Vertex shader input structure
struct VertexInput
{
    float4 Position : ATTRIBUTE0; // Vertex position
    float2 UV : ATTRIBUTE1;       // Texture coordinates
};

// Vertex shader output structure
struct VertexOutput
{
    float4 Position : SV_POSITION; // Clip-space position
    float2 UV : TEXCOORD0;         // Texture coordinates passed to the pixel shader
};

// Vertex shader function
VertexOutput MainVS(VertexInput In)
{
    VertexOutput Out;
    
    // Transform the vertex position to clip space
    Out.Position = mul(In.Position, View.WorldToClip);
    
    // Pass the UV coordinates to the pixel shader
    Out.UV = In.UV;
    
    return Out;
}

// Pixel shader function
float4 MainPS(VertexOutput In) : SV_Target
{
    // Define a constant color (e.g., blue)
    float3 BaseColor = float3(0.0, 0.0, 1.0);
    
    // Return the color with full opacity
    return float4(BaseColor, 1.0);
}

// Register the shaders
VS_Main(MainVS); // Register the vertex shader
PS_Main(MainPS); // Register the pixel shader