I have time and you have my attention sir Manuel! I'm looking forward for this :)
I think adding this feature to C4D will be a good improvement... at least, for those who are interested in.

Thank you again

thank you very much @zipit !! your answer gave me a lot of ideas :)

Thank you @PluginStudent for your answer ! very instructive :)
I found this video showing a kind of real-time boolean shader (Geo clip shader)
So, since C4D allow only pixel/fragment shaders, I wonder how this one was done ?

Hi,
Is it possible to create a shader plugin (ShaderData) that modify the object structure ? I saw an example like this using a different software few years ago but I can’t remember where…
For instance, if I have a cube and apply a material using this shader it will change all quad polygons into triangles only during the render (... + maybe inside the viewport if possible)

Thank you