#include "bindless_structs.hlsli"

struct FS_Input
{
    float2 inUV : TEXCOORD0;
};

struct FS_Output
{
    float4 outColor : SV_Target0;
};

struct Float4
{
    float4 value;
};

float4 GetAlbedo(uint materialBufferId, int materialId, float2 uv0)
{
    if (materialId < 0)
    {
        return float4(1.0f, 0.0f, 1.0f, 1.0f); // Magenta
    }
    else
    {
        float4 albedoFactor = materialsBuffer[materialBufferId][materialId].m_AlbedoFactor;
        uint albedoTexId = materialsBuffer[materialBufferId][materialId].m_AlbedoTex;
        if (albedoTexId == INVALID_HANDLE)
        {
            return albedoFactor;
        }
        else
        {
            return textures[albedoTexId].Sample(immutableSamplers[albedoTexId], uv0);
        }
    }
}

FS_Output main(FS_Input stage_input)
{
    FS_Output stage_output;
    stage_output.outColor = GetAlbedo(pcb.materialBufferHandle, pcb.m_MaterialIdx, stage_input.inUV);
    return stage_output;
}