Docs mention :
I've set out to test but indeed seems fromNDC doesn't seem to produce the same result work in COPS as in SOPS. Can anyone confirm? Are there any alternatives to convert world positions into camera projective coordinates UV.

Thank you

I believe ptransform() has “to space” as an argument, and space:camera is well defined as well as space:ndc as far as i remember.
No warranties.
Fuat

It's more tedious, but you can make your own perspective projection matrix with the “perspective()” VEX function.

Thanks guys,
Will follow those leads in my tests.