How Can I Set depthTest and depthWrite on material of troika-3d-text

[YuZhang-steven]

Hello I am trying to add my own material on troika-3d-text. Everything works fine, but the depthTest and depthWrite not works. Changing both prop on the material has no any effect. Anyone knows how to set those correct?

<shaderMaterial vertexShader={vertexShader} fragmentShader={fragmentShader} side={THREE.DoubleSide} depthTest={true} depthWrite={false} />