Help with chunky material/shape?

Jacob McGarry's icon

Hi everyone,

can anyone identify why I'm getting these pixelated shapes in the shaded areas of this object? Have I not enabled something in the gridshape/mesh/material? Have tried playing with every attribute I can find, to not avail. Using a similar setup in other patches I have never encountered this.

Patch is attached too

GFTERRAIN.maxpat
Max Patch

Thanks!