Cecropia leaf atop lobster claw petals, Mexico (© Gerry Ellis/Minden Pictures)
An olive tree in front of the Temple of Concordia on the island of Sicily, Italy (© Alfio Finocchiaro/Shutterstock)
How to create photo-realistic graphics using Pov-Ray and associated programs.
00: Adventures in Ray Tracing: 13: Virtual Telescope II: Cassegrain