LIGHT - a detailed tutorial - par itchy animation (ENG)

LIGHT - a detailed tutorial Throughout this article I will be using a diagram of a white ball on white card to demonstrate how light behaves in different everyday situations: Here it illustrates a sunny afternoon. The main source of light is the sun, whilst the blue sky supplies a second source of light with very different characteristics. Some light is also bouncing between the white base and the ball and supplies a third source of light. The brightest light is coming from the sun and is white light emanating from a small source, which causes it to cast sharp edged shadows. The light coming from the blue sky has a very strong colour cast which affects everything in this scene. Finally the light that is reflected between the card and the ball is also predominantly blue (even though the card and ball are white) since it is blue skylight that is being reflected by the white objects. Why is the terminator the darkest area on the ball? Why is the light from the sky blue? Light bounces High key

PSG Art tutorial Foreword I believe there is logic behind why a picture works or not. I also believe that humans are meat machines, and that one day computers will be able to emulate humans and what we do. Since logic can be formulated into rules, guidelines and theories, these can be shared. I will attempt to do so here. Note that I have just empirically deduced the theories I present here, and that I'm a highly fallible meat machine. Many rules also play against each other and may cancel each other out, or become invalidated because of a stylistic approach . The far most useful critique I can give developing artist is: Practice. Updates 2012 May02: Clarified stuff in the Terminology section. Table of contents Licence This tutorial is, in its current form, free to translate and 'mirror' in that form. Because I may be updating it and new versions are generally better, I'd rather not have it mirrored too much. I guess this licence comes pretty close: Terminology (Upd. 2012) Seeing (Upd. 2012) Light stuff Exposure