Here's my pyramid with my formula shader experiment (not really right along the edges). This is the formula I used for the Blender channel under Color, which was also copied under the Bump channel, in case anyone wants to play with it. w=5; h=5; b=5; g=0.1; r=b*2+1; d=h/r; e=w/(b+0.5); f=(z/d)-floor(z/d); j=(f<=y))?1:0; r=(m/e)-floor(m/e); s=((r<=x))?1:0; value=j||s||q;