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Title	Masking Tutorial
ID	6140159178915840
Created	Unknown
Updated	4 years ago, 1620000922488
Code	//You can use masking for soooo many things it's great, and I wanted to make a tutorial and hopefully you'll learn masking and can use it in your own programs!! //Check out my other tutorial about using get(); for images, https://www.khanacademy.org/computer-programming/image-method-tutorial/5365471268978688 /* So what we're going to be doing is making two separate image, then use the one image and apply it to the other one and mask it. Also if/after you understand this, PLEASE write your own code and make something using masking, the more you practice the better you'll get at it and understand it */ //Don't mind these, these aren't important randomSeed(3498244); // this is for if you use firefox, it basically doesn't round values/numbers smooth(); //be sure to set the background to a solid black color, that way it will look smoother once you mask background(0, 0, 0); //be sure to have the fill of the shapes to be white otherwise the color will be messed up later when masking. Try changing the color and see what happens. fill(255); //the shape of the masked image ellipse(200, 200, 200, 200); //you can even use multiple shapes! ellipse(116, 112, 40, 40); ellipse(98, 145, 30, 30); ellipse(88, 177, 20, 20); //gets a pic of the whole canvas and stores it into a variable called exampleShape, we can use this variable later for a image when masking var exampleShape = get(); //just the texture here vv //main color of the object thing background(0, 25, 186); for(var i = 0; i < 1543; i++) { //random size strokeWeight(random(5, 30)); //random color stroke(random(0, 255), random(0, 255), random(0, 255), random(0, 255)); //the dots point(random(0, 400), random(0, 400)); } //filter blur is also something that is used with masking a lot, so you can have a blurred texture, but the shape doesn't get blurred, actually REALLY really useful for a lot of things, uncomment this line underneath to see how it works. filter(BLUR, 2); will blur everything up from this point. // filter(BLUR, 3); //takes a pic of the texture and stores it as an image called exampleTexture var exampleTexture = get(); //So from here on we have just been using get to take images of the canvases, so it's pretty simple, if you're having trouble with learning get(); you can check out this other tutorial made by me, https://www.khanacademy.org/computer-programming/image-method-tutorial/5365471268978688 //VERY IMPORTANT, this masks the two shapes. So explained by KWC masking is a process where grayscale values of one image are applied to another image as transparency values. I don't completly understand masking and how exactly it works yet. //IMPORTANT, so there is a new glitch in Khan academy where masking won't work with a draw function, unless you have it in a if statement like so if (exampleTexture) { exampleTexture.mask(exampleShape); } // so if you're doing it with a draw function be sure to add that if statment otherwise oh noes will get after you! //resets the background so you don't see the other stuff for the image we used. Remove this and see what happenes, you'll see what we previously drew background(97, 59, 23); //now we can use this as an image image(exampleTexture, 0, 0); //I hope you've read and understand all of the code and comments. Also if you feel like masking is too big of a step perhaps just learn how to use images first, if you haven't learned it yet. If you have any questions just ask, I'll get back to you. //if you understand this now, start making some programs using masking, the more you make the better you'll get at it and the more you'll understand it!
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Key	ag5zfmtoYW4tYWNhZGVteXIXCxIKU2NyYXRjaHBhZBiAgOW1k470Cgw
Votes	192
Spin-Offs	32
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Height	400
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Author Nick	NitOwl007 [INACTIVE]
Author Name	OnlyOwl1
Author ID	kaid_607413902639112014082643
Author Profile Access	PUBLIC

Archive Data

Added	1 years ago, 1707881093493
Updated	10 months ago, 1739453906237
Source Deleted	unknown