Yes, that's how I use it.
So the current version can't achieve the effect of this example, can it?
This example can independently control to ignore projection, diffuse reflection and specular reflection.
And now the actual result is
Camera: Exclude the projection of marked objects on this material, diffuse reflection and specular reflection.
Shadow: It doesn't work.
Diffuse reflection: When calculating the indirect diffuse reflection of this material, it is assumed that the marked object is hidden. That is to say, other objects will receive more energy when receiving indirect diffuse reflection from objects of this material, because marked objects are regarded as hidden here.
Specular reflection: similar to different reflection.
That is to say, the actual effect now is that shadow has no effect. Diffuse and specular reflection actually affect indirect light, that is to say, it does not act on the surface of this material, that is to say, the control of projection, diffuse reflection and specular reflection in the example is all concentrated in the camera.
That is to say, if you want your ground not to receive the projection of the marker, and don't see the marker in the specular reflection, and the diffuse reflection of the marker don't affect the ground, these effects are all concentrated in the camera option, not Diffuse and Specular Reflection and Shadow, so you can't control it alone.
