Show HN: A particle-animation Christmas greeting card

Re:Show HN: A particle-animation Christmas greeting card by Kagerjay on Monday December 24, 2018 @07:56PM (#18755182)

ahhh right just get `fillStyle` or `strokeStyle` or `fill` or `stroke` to nothing.

What about making the mask though? Is it kind of like in photoshop where you write some text → create outline / curves off of it? Or do you keep it as text?

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Re:Show HN: A particle-animation Christmas greeting card by goldenkey on Tuesday December 25, 2018 @04:57AM (#18756780)

Depends what you want to do. If you want the mask as a bunch of pixel locations you can loop through the image and make a JS Set of x,y coords which arent blank. I am not sure what representations the above app used for their masks. It's all isomorphic. Important step is just to generate the masks using either fillText or strokeText.

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