material {
    name : unlit,
    requires : [ uv0 ],
    parameters : [
        {
            type : sampler2d,
            name : baseColorMap
        },
        { 
            type : float4, 
            name : baseColorFactor 
        },
        { 
            type : int, 
            name : baseColorIndex 
        },
        {
            type: float2,
            name: uvScale
        },
        {
            type: float,
            name: vertexScale
        }
    ],
    depthWrite : true,
    depthCulling : true,
    shadingModel : unlit,
    blending: opaque,
    culling: none,
    instanced: false,
    vertexDomain: object,
}
   
fragment {
    void material(inout MaterialInputs material) {
        prepareMaterial(material);           
        material.baseColor = materialParams.baseColorFactor;
        
        if (materialParams.baseColorIndex > -1) {
            highp float2 uv = getUV0();
            uv.y = 1.0 - uv.y;
            uv *= materialParams.uvScale;
            material.baseColor *= texture(materialParams_baseColorMap, uv);
        }
    }
}

vertex { 
    void materialVertex(inout MaterialVertexInputs material) {
        float4 position = getPosition();
        position.xyz *= materialParams.vertexScale;
        material.worldPosition = getWorldFromModelMatrix() * position;
    }
}