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Video: Light and Color
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Check it out. The colour across the top is my uber sad attempt at making day light using a nano-curve. I used a Gradient + Curves and tried to follow the general shape of actual day light data. Its damn hard and this is the closest I got before giving up. Its also a bit over-muted because I didn't bother tweaking the scale. In the middle is a nano-curve for a random colour. The violets and indigos are on the high end with a big dip through the middle in the yellow/green area. Along the bottom is what happens when I put the two together. Now that is damn sweeeeet. [img]http://tech-slop.serveit.org/wiki/images/light_surface_final01.jpg[/img] Most 3d render engines use RGB space and multiply for lighting. Makes sense. So I took the light and surface colour and multiplied them just like in such a 3d render system. Guess what? The colour it spit out was *vastly* different than the above experiment. The differences in hue between the two methods is enough to make me jump for joy. This is a big part of something that I have been after for quite some time.
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