The lecture today touches on some of the more relevant topic to animation ,or in art in general , as a start to a whole new part of the lecture program which focuses on the theoretical and practical development of visual language, as well as going in deeper into the previous topics. Colour theory is probably a knowledge that is considered common sense within the art community, whether you actually know it or not. Its sometime is a skill that you just picked up along the way through many many practices, but actually learning about it is quite interesting and different from what you think.
To quote Fred : " Colour surrounded by other colour which affect the way we see that colour ". This is a response to the fact that in practice, we would often deal with independent colour , ( we choose a colour to put in ) .
The first part start out as a scientific insight on what is colour, as well as how our brain turn what we see into the colour that we perceive. Colour is linked to light ( FACT ) , hence our perception of colour is based on light. Each colour is a different wavelength, some we cannot perceive hence we see it as the same colour. Fred also demonstrate on the fact that the reflective ability of light and the importance of the surface it is bouncing off through the multi-colour paper experiment, in which , different colour paper will bounce light in a different way hence changing the colour we see from the actual colour of the paper.
Our eyes have 2 kind of receptors, rods pick up shades of black and white, cones allow the brain to perceive colour. Type 1 cone is sensitive to red-orange, type 2 green and type 3 blue. With that comes an interesting fact that , it is a combination of these types that we can perceive intermediate colours like purple through a combination of red and blue, hence , those types of colour may not exist at all and the only colours that we actually SEE is red, green and blue! This is really a blow-your-mind fact to me.
Fred also touch on the fact that everyone perceives colours differently and logically nothing can be identified exactly ( the Dress story comes to mind )
After this came a brief introduction on the colour wheels , primaries , and complementaries. Complementaries are chromological opposites , that when you mix those 2 colours together you get a grey colour. These is because the the wavelengths of these 2 colours cancel each other out, creating a colour that has a neutral tone with a pigment of grey. This how we see most of our world, a set of neutral colour with high-points.
This bring us to colour modes : RGB and CYMK , 2 of the most prevalent aspects in digital media. Interestingly enough , they are entirely separate modes but RGB serves as a secondaries to cyan , magenta and yellow. This is more clear in the difference of colour system , subtractive and additives. in which , RGB and CMYK switches roles as primaries and secondaries according to the system in use.
Some important terms:
-Chromatic value : Hue + Tone + Saturation
Hue : referring to the colour itself
Luminance : within each hue, how bright the colour it is or how vivid. - Shad ,Tint and Sint
Saturation : the amount of colour we can see and how pure the colour is . Effective saturation can be done through changing the shads ( making it darker ) or the hue ( changing the colour entirely )
To round it of , a little examples by Fred , using just red demonstrating how a surrounding colour can change our perception of colour ,like is a red is surrounded by a brighter red it becomes darker. Much like the same way how in my illustration , having a white background always make the figure darker than it seems which explain why most painting start out with putting some kind of colour on to cancel out the white
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