The way your polygons are arranged must be a complete mess.

Poser smooths polygons. Because of this, it takes into account the way they are arranged, the way your wires point to, the ammount of polygons in a place as opposed to another place with less polygons. C4d is bad at handling how to create the polygons when you make a boolean operation. It creates a lot of thin and long triangles, and Poser hates those. Move vertices around, and things will get even worse.

- - - - - - 

Feel free to call me Ohki!

Poser Pro 11, Poser 12 and Poser 13, Windows 10, Superfly junkie. My units are milimeters.

Persephone (the computer): AMD Ryzen 9 5900x, RTX 3070 GPU, 96gb ram.