The Prism

[joey5605]

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[ToshTheWolf]

lol o.o

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[buddy39914]

dsom

[ThoGunArm]

I want a prism.

and one of those vibration forks.

[TOOVOOT]

pause at 0:11 and you got the pink floyd album "Dark side of The moon"

[flameking97]

this video is okay

[sheetal96]

PINK FLOYD xD

[lamemo123456789]

i get it. white light reflects all the colors of a rainbow and to get white light back, all the 7 colors must combine back together

[Roncace]

Isaac Newton discovered what we see here!

[Ishman2k8]

Yeah the colours we can't see are infrared (before red) and ultraviolet (after purple)

[pihis]

Actually there is a bit more to that... Some long time ago I had a chance to have a look into a spectrometer, ant what was surprising that above the actulal colors there is an equally wide range of violets, that the human eye simply detectets as "violet" (assumimg that the radiation is strong enough). --> It would be possible to arrange a full coloursystem inside the violetrange only 8-/...

[Ryandri0d]

Would it be possible to mount a prism to my bicycle light and have it shine a rainbow while I ride down the road? Thanks.

[pihis]

Hehe... Good plan, but I doubt, if it would ever be as impressive as you'd wish it to be :D

[Telepothead]

isn't there colors we can't see?

[pihis]

That depends on what you choose to call a color.

A color is usually understood to be a combination of radiation frequencies that human eye can detect. So from the human point of view the colors, that we can see, are all the 'colors' there are....

However for example many insects have their vision system most actively working in the ultraviolet zone, that to us is just pale violet and not very useful for seeing. So in that sense they see colours, where we don't.

[loopydabomb]

is there a specific angle to get the light to split up?

[pihis]

On a real life prism the light gets split, when it a kind of "cuts a corner" (enters one side at an agle and exits the next with the opposite angle). But light can also find a way through a prism where it won't get split.

The above then is constructed of 5 light beams in different colours and the Index of Refraction value on the prism material was set different to all the five colors. So it simulates the real life effect, but somewhat exaggerated.

[Ale905212]

There's no dark side of the Moon,matter of fact it's all dark :D

[pihis]

Hehe... Thanks. :D

Having seen the result myself I did think of the connection :)

[xXMajiqXx]

i need some tutorials i have storyine for a game and i just got ths programm and it is very difficult

[pihis]

Well, AoI does not have a game-engine so far, but for animaton it shold work after you get familiar with it. :)

YT won't allow web adresses, but I'll try to be creative;)

To get help with the first steps, there's a manual in the "documentation" section in the artofillusion homepage (org).

Discussion and more tutorials, produced by users, can be found at "aoiforum" that you can find on Marc Carson's homepages. Google should bring you there.

[pihis]

Be sure to install the plugins and scripts. The best modelling tool of AoI is actually implemented as plugin. (Go "Scripts and Plugins Manager" in the "Tools"-menu.)

[danthorpe2002]

oh, ok what is the software?

[pihis]

It's called "Art of Illusion". For more you can check the W**ipedia. (Sorry for the way I wrote it You Tube seems to be filtering any messages with real words in it)

[danthorpe2002]

What happens if you spin the prism really fast?

[pihis]

Basically it just spins faster. It's a good question though. :)

First, the sofware does not handle time shorter that 1/30 s and the IoR of the prism is changing 5 times for every frame -- and next, as the prism was spinning also the white reflections turned "rainbows".

What I did was to render every frame 1 second long and change the spinning into step-by-step instead of continuous. For the final piece I then changed the frame rate into 15/s (as I recall) and made it loop a few times.