Selective SSR on planes

[Ahlecss]

Hey here !
Hope you are doing well,

I’m trying to get a mirror-like effect on the floor for my scene.

I’m using effect composer to use the SSR effect, and so, having a floor that will mirror the lights and the objects on my scene. But the problem is, my objects also get the light. They also have the mirror effect but I don’t want it. They are planeBufferGeometry, with custom shaderMaterial.

I tried with some attributes like receiveShadows, but not working.

I’m maybe searching for a way to select only the meshes on which I want the effect to apply. I saw that in ThreeJS, there is something like “selects” for SSR Pass, is there anything like this in Three Fiber ?

For some code, here is the global Effect Composer

    <EffectComposer disableNormalPass autoClear={true} multisampling={0}>
      {hovered < 6 && <GodRays ref={god} sun={itemsRef.current[hovered]} density={0.4} weight={0.4} exposure={0.4} decay={0.8} blur />}
      <Bloom luminanceThreshold={0} mipmapBlur luminanceSmoothing={0.0} intensity={0.3} />
      <SSR />
    </EffectComposer>

here is the effect of R3F that work well to create the mirror effect

    <ContactShadows resolution={1024} frames={1} position={[0, -1, 0]} scale={15} blur={0.5} opacity={1} far={20} />

here is one of my mesh

      <mesh position={[0, 0, 0.1]}
        ref={el => itemsRef.current[i] = el}
        transparent={true}
        <planeBufferGeometry attach="geometry" args={[3.1 * 1.3, 10 * 1.3, 100, 100]}/>
        <imageFadeMaterial ref={shaderRef} attach="material" tex1={tex1} tex2={tex2} transparent={false} colorSpace={THREE.SRGBColorSpace}/>
      </mesh>

If you have the solution, any idea, or think that it's not the right way to achieve mirror effect, let me know,

Thank you all ! Have a great day !