Corridor to forever

My entry for Apophysis Challenge #18, disc-julians. Rather than my usual polar orthogoniser (my coinage ;P), I've used the newly-discovered log as a final xform, giving an interesting hint of curvature to the perspective. Duplicating the julian xform and tidying up the xaos coefficients coupled with low gamma value provides the look of finely etched, almost screen-printed stone.