struct VertexOut {
    float4 outPosition : SV_Position;
    float4 screenPosition : ScreenPosition;
    float4 vertexColor : CoarseColor;
    float2 texCoord0   : TexCoord0;
};

struct CameraData {
    float4x4 view;
    float4x4 proj;
};

struct PerFrameData {
}

[vk::binding(0, 0)] uniform ConstantBuffer<CameraData> camera;
[vk::binding(0, 1)] uniform Sampler2D texture;

struct PerInstanceData {
    float4x4 transform;
}

[[vk::push_constant]]
uniform ConstantBuffer<PerInstanceData> pcb;

[shader("vertex")]
VertexOut VertexMain(
    uint vertexId: SV_VertexID,
    float3 position,
    float3 color,
    float2 texCoord0,
) {
    VertexOut output;
    output.outPosition = mul(camera.proj, mul(camera.view, mul(pcb.transform, float4(position, 1.0f))));
    output.screenPosition = mul(camera.proj, mul(camera.view, mul(pcb.transform, float4(position, 1.0f))));
    output.vertexColor = float4(color, 1.0f);
    output.texCoord0 = texCoord0 * 2.0f;
    return output;
}

[shader("fragment")]
float4 FragmentMain(
    float4 interpolatePosition  : ScreenPosition,
    float4 interpolatedColors   : CoarseColor,
    float2 uv0                  : TexCoord0,
) : SV_Target0 {
    return float4(texture.Sample(uv0).rgb, 1.0f) * interpolatedColors;
}