Quote: "How about an addendum to the rules.. no boolene operations?
I'd guess then that z-spheres would not be accepted?"
Well technically you could create the same effect as Zspheres in another application by layering spheres. Quite counterproductive if you ask me but gains the same results. I would personally allow Zspheres as an entry, but it won't be winning anything because all it is doing is laying spheres in the shape of a human, not that impressive at all if you ask me.
If it were me and as I assumed what this competition was about, was using base primitives to mould an object. I would personally create objects to import, so no subdividing, no welding or deleting of polygons/vertices, just translate, scale and rotate should be allowed.
I'm just following this.
Quote: "Using basic shapes, assemble them into a new object. Like leggo blocks,"
You don't remove the side of a Lego block when it doesn't suit what you are doing, do you? If you do you're weird. This challenge is about tweaking existing objects to fit your needs, without destroying the properties of the original object. I think you could use zbrush if you want but there is no point seeing as you can't create or destroy polygons. I think its fairer on the whole. Think about it, if you could create or destroy polygons, theres no point in this challenge being a primitive based challenge. Also, experience Zbrushers can take a sphere and turn it into a head in a couple of hours, whereas someone in max or blender would have a much harder time doing so.
Ultimately it's up to Mr Gervais, but i believe a download with the primitives in is the best way to go, with you only being able to translate, rotate, and scale the vertices, polygons and edges. This still retains the topology of the original primitive and still gives enough freedom for creativity.