February 28th, 2014, 11:48 AM  #1 
Newbie Joined: Feb 2014 Posts: 8 Thanks: 0  RGB Colors
Hey guys, I'm not sure if this is the right forum to post in, but I hope you can help me anyway. For a game I'm working on I'm looking to generate all colors in the RGB spectrum (see the image below). Just in case you don't know what RGB colors are, here's a brief explanation: The colors you see on your screen are made up of three base colors, red, green and blue. The brightness of each color varies between 0 and 255. By mixing the three colors in various brightness a lot of colors can be achieved. I want three functions, one for each color: red, green and blue. The function should take a decimal from 0 to 1 and return a new number between 0 and 255. I've made this beautiful graph to showcase the returnvalues of each function: http://gyazo.com/1cdb384844472e636ebb1d07c64f6ac3.png I'd really appreciate some help Thanks! 
March 1st, 2014, 09:10 AM  #2 
Newbie Joined: Feb 2014 Posts: 8 Thanks: 0  Re: RGB Colors
I solved this in a somewhat sloppy way, but it works If you're from the future and have the some problem as I did, here's how I solved it: I made this function Code: function rainbow(x) { x = x  Math.floor(x); if (x >= 0 && x <= (1/6)) { return Math.round(x*6*256); } else if (x >= (1/6) && x <= (1/6)*3) { return 256; } else if (x >= (1/6)*3 && x <= (1/6)*4) { return 256Math.round((x(1/6)*3)*6*256); } else { return 0; } } Code: r: rainbow(x+(1/6)*2) g: rainbow(x) b: rainbow(x(1/6)*2) 

Tags 
colors, rgb 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
A Group Structure for Unlabeled Necklaces 8beads 8 colors?  Henriette  Abstract Algebra  0  March 15th, 2014 09:57 AM 
How many sequences of colors are possible...  sivela  Math Events  1  February 22nd, 2011 06:41 PM 
Probability of seeing k different colors in sample of size m  duffy  Advanced Statistics  3  December 30th, 2010 09:40 PM 