o3de-atom-sampleviewer/Shaders/RHI/VariableRateShading.azsl

/*
 * Copyright (c) Contributors to the Open 3D Engine Project.
 * For complete copyright and license terms please see the LICENSE at the root of this distribution.
 *
 * SPDX-License-Identifier: Apache-2.0 OR MIT
 *
 */

#include <Atom/Features/SrgSemantics.azsli>
ShaderResourceGroup InstanceSrg : SRG_PerObject
{
    Texture2D m_texture;
    Sampler m_sampler
    {
        MaxAnisotropy = 16;
        AddressU = Wrap;
        AddressV = Wrap;
        AddressW = Wrap;
    };
}

struct VSInput
{
    float3 m_position : POSITION;
    float2 m_uv : UV0;
};

struct VSOutput
{
    float4 m_position : SV_POSITION;
    float2 m_uv : UV0;
};

VSOutput MainVS(VSInput vsInput)
{
    VSOutput OUT;
    OUT.m_uv = vsInput.m_uv;
    OUT.m_position = float4(vsInput.m_position.x, vsInput.m_position.y, vsInput.m_position.z, 1);
    return OUT;
}


struct PSOutput
{
    float4 m_color : SV_Target0;
};

PSOutput MainPS(VSOutput vsOutput)
{
    PSOutput OUT;
    OUT.m_color = InstanceSrg::m_texture.Sample(InstanceSrg::m_sampler, vsOutput.m_uv);
    return OUT;
}