struct VSInput // vertex shader bemeneti struktúra
{
    float3 position_D : POSITION;
    float3 normal : NORMAL;
};

struct VSOutput // vertex shader kimeneti struktúra
{
    float4 position_H : SV_Position;
    float3 color : COLOR;
    float3 worldPosition : WORLDPOS;
};

cbuffer CFrame : register(b0)
{
    float4x4 transformMatrix;
    float4x4 viewMatrix;
    float4x4 projMatrix;
    float4 camPosition;
};
cbuffer CEntity : register(b1)
{
    float4x4 worldMatrix;
    float4 color;
}

VSOutput vs_main(VSInput input)
{
    VSOutput output; // vertex shader kimenete
    
    float4 worldCoords = mul(float4(input.position_D, 1.0), worldMatrix);
    output.position_H = mul(worldCoords, mul(viewMatrix, projMatrix));
    
    // TODO fények
    float3 L = normalize(float3(1.0, 1.0, 0.5));
    float3 I = float3(1.0, 1.0, 0.8);
    float3 md = float3(1.0, 0.1, 0.1);
    
    //float3 p = float3(1440, 370, -1365);
    output.color = (I * color.xyz) * max(dot(input.normal, L), 0);
    
    output.worldPosition = worldCoords;
    
    return output;
}

struct PSOutput
{
    float4 color : SV_Target;
};

PSOutput ps_main(VSOutput input)
{
    PSOutput output;
    
    //output.color = float4(0.0f, 1.0f, 0.0f, 1.0f);
    output.color = float4(input.color, 1.0f) / length(input.worldPosition -
        camPosition.xyz) * 200;
    
    return output;
}