Lagoons are shallow bodies of water that gets separated from larger water bodies due to the formation of reefs or barrier islands. Atoll lagoons form as coral reefs grow upwards while the islands that the reefs surround subside, until eventually only the reefs remain above sea level.
From Wikipedia, the free encyclopedia. John Knoll (born October 6, 1962) is an American visual effects supervisor and chief creative officer (CCO) at Industrial Light & Magic (ILM).
A co-developer of Photoshop along with his brother Thomas Knoll, Knoll is also the inventor of Knoll Light Factory, a lens flare generating software inspired by his work at Industrial Light and Magic.