> Hi guys, is there no null object in Povray?
> Something as close as possible to object{}  that could be used in a scene, and
> applied a matrix to with no apparent result?
>
> I need to keep some point transformations, without anything actually being
> rendered in the scene.
>
> I tried #declare DATAEmpty =mesh {triangle{<0, 0, 0>,<0, 0, 0>,<0, 0, 0>}}
> but it does not work
>
>

That's not a null object but a degenerate triangle.

You may try a zero radius sphere:
sphere{Center, 0}

An invisible object:
sphere{Center, Radius pigment{rgbt 1} no_image no_shadow no_reflection 
no_radiosity photons{pass_through collect off} hollow }

You can also use vector operations as previously suggested.

Also as previously suggested, you can #declare your transformation.

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