material {
    name : ArrayTexture,
    parameters : [
        {
            type : sampler2dArray,
            name : image
        },
        {
            type : int,
            name : layerIndex
        },
        {
            type : bool,
            name : borderEffect
        }
    ],
    requires : [
        uv0
    ],
    shadingModel : unlit,
    culling : none
}

fragment {
    void material(inout MaterialInputs material) {
        prepareMaterial(material);
        float3 v = texture(materialParams_image, vec3(getUV0(), materialParams.layerIndex)).rgb;
        material.baseColor.rgb = v;

        // Add black border effect.
        if (materialParams.borderEffect) {
            vec2 st = getUV0();
            float minDist0 = min(st.x, st.y);
            float minDist1 = min(1.0 - st.x, 1.0 - st.y);
            float minDist = min(minDist0, minDist1);
            material.baseColor.rgb *= smoothstep(0.0, 0.1, minDist);
        }
    }
}