What about Z?

Vmax(x3,y3,z3)

Vmid(x2,y2,z2)

Vmin(x1,y1,z1)

Need to interpolate Z values for each fragment

zp

xa,ys,za

xb,ys,zb

Linear Interpolation:

za = z3 - (z3-z1)*[ (y3-ys)/y3-y1)]

zb = z3 - (z3-z2)*[(y3-ys)/(y3-y2)]

zp = zb - (zb - za)*[(xb - xp)/(xb - xa)]

Previous slide

Next slide

Back to first slide

View graphic version