<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>zakary</author><text>It just so happens that one of my colleagues just finished a PhD creating materials which pretty much do exactly this; converting a relatively broad spectrum of light into a much narrower band of light. I’ve seen them in the lab where it’s colourless and clear to start with, and then it will convert any incident light in the blue range into a much narrower band of a specific blue colour. He has recipes for just about any colour, even into UV and IR bands. 
Not sure what the real world applications are though, maybe something to do with coatings for photovoltaic cells to increase efficiency</text><parent_chain><item><author>rbanffy</author><text>In order to be properly 8-bit it’d also need to round the colours to some quantised palette. The physics of that would be much, much more interesting.&lt;p&gt;I’m guessing that Atari 8-bit computers would be the easiest, followed by pure 8 and 16-colour RGB and RGBi palettes. To do the Commodore 64 palette would be a very interesting materials science project.&lt;p&gt;And then do that with variable ones, like the Commodore 16, where you have an arbitrary subset of a quantised color space.&lt;p&gt;Try that without a power supply.</text></item></parent_chain></comment><story><title>Crystal Fragment Turns Everything You See into 8-Bit Pixel Art</title><url>https://www.yankodesign.com/2024/07/04/this-crystal-fragment-turns-everything-you-see-into-8-bit-pixel-art-and-its-fascinating/</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>kaba0</author><text>Resolution and color depth are two different “dimensions”, and 8-bit may refer to either.</text><parent_chain><item><author>rbanffy</author><text>In order to be properly 8-bit it’d also need to round the colours to some quantised palette. The physics of that would be much, much more interesting.&lt;p&gt;I’m guessing that Atari 8-bit computers would be the easiest, followed by pure 8 and 16-colour RGB and RGBi palettes. To do the Commodore 64 palette would be a very interesting materials science project.&lt;p&gt;And then do that with variable ones, like the Commodore 16, where you have an arbitrary subset of a quantised color space.&lt;p&gt;Try that without a power supply.</text></item></parent_chain></comment><story><title>Crystal Fragment Turns Everything You See into 8-Bit Pixel Art</title><url>https://www.yankodesign.com/2024/07/04/this-crystal-fragment-turns-everything-you-see-into-8-bit-pixel-art-and-its-fascinating/</url></story>