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This is so fascinating to learn. Here is was just thinking Pantone colours were some fancy standardised names… Also, TIL “fresnel” is the name for that colour

This is so fascinating to learn. Here is was just thinking Pantone colours were some fancy standardised names… Also, TIL “fresnel” is the name for that colour/pattern!

laserlight 4y ago
I'm not sure fresnel is the right term. What GP referred to is probably iridescence [0]. [0] https://en.wikipedia.org/wiki/Iridescence https://en.wikipedia.org/wiki/Iridescence
- mcdonje 4y ago
  Yeah, he didn't call the color effect fresnel. He called the reflections fresnel. You're right that the color effect is called iridescence. https://en.wikipedia.org/wiki/Fresnel_equations https://en.wikipedia.org/wiki/Fresnel_equations https://en.wikipedia.org/wiki/Fresnel_lens https://en.wikipedia.org/wiki/Fresnel_lens
- hrnnnnnn 4y ago
  If you want to know lots about how materials interact with light to look the way they do, including how the Fresnel effect contributes, there was a great talk at the Blender conference this morning about it. https://youtu.be/DQeP363Xmn4 https://youtu.be/DQeP363Xmn4
RHSeeger 4y ago
The fresnel lens/effect is used in a number of places - Those "invisibility shields" you see videos of - In (vision) glasses, to correct for double vision (you can get prism in the glasses or, if the double vision is too much for that, a sticky "fresnel" lens that gets attached to the glass. I have one setting on my desk that I was using before my corrective surgery, actually... woo, tangents)
GuB-42 4y ago
Augustin-Jean Fresnel was an engineer and physicist who made major contributions to the field of optics. As a result, many different things are named after him. I am more familiar with "Fresnel" being a shading technique responsible for "rim lighting" in computer graphics, that's because this is an application of Fresnel equations, discovered by Fresnel. But in other fields, "Fresnel" can mean something else entirely, with the only thing in common being that it can be traced back to the work of Fresnel.

This is so fascinating to learn. Here is was just thinking Pantone colours were some fancy standardised names… Also, TIL “fresnel” is the name for that colour/pattern!

laserlight 4y ago

I'm not sure fresnel is the right term. What GP referred to is probably iridescence [0]. [0] https://en.wikipedia.org/wiki/Iridescence https://en.wikipedia.org/wiki/Iridescence

mcdonje 4y ago
Yeah, he didn't call the color effect fresnel. He called the reflections fresnel. You're right that the color effect is called iridescence. https://en.wikipedia.org/wiki/Fresnel_equations https://en.wikipedia.org/wiki/Fresnel_equations https://en.wikipedia.org/wiki/Fresnel_lens https://en.wikipedia.org/wiki/Fresnel_lens
hrnnnnnn 4y ago
If you want to know lots about how materials interact with light to look the way they do, including how the Fresnel effect contributes, there was a great talk at the Blender conference this morning about it. https://youtu.be/DQeP363Xmn4 https://youtu.be/DQeP363Xmn4

RHSeeger 4y ago

The fresnel lens/effect is used in a number of places - Those "invisibility shields" you see videos of - In (vision) glasses, to correct for double vision (you can get prism in the glasses or, if the double vision is too much for that, a sticky "fresnel" lens that gets attached to the glass. I have one setting on my desk that I was using before my corrective surgery, actually... woo, tangents)

GuB-42 4y ago

Augustin-Jean Fresnel was an engineer and physicist who made major contributions to the field of optics. As a result, many different things are named after him. I am more familiar with "Fresnel" being a shading technique responsible for "rim lighting" in computer graphics, that's because this is an application of Fresnel equations, discovered by Fresnel. But in other fields, "Fresnel" can mean something else entirely, with the only thing in common being that it can be traced back to the work of Fresnel.