Lee Griggs makes colorful 3-D renderings like this.

The renderings are abstract — almost oceanic.

The effect makes the viewer feel as if tiny cities are rising out of the floor.

Griggs uses Maya Xgen and Arnold to create the renderings.

He tried initial versions in black and white before using the psychedelic colors.

Many of the images could be Martian landscapes.

Griggs created a tutorial of the process on his site