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Random / noise functions for GLSL

As the GPU driver vendors don't usually bother to implement noiseX in GLSL, I'm looking for a "graphics randomization swiss army knife" utility function set, preferably optimised to use within GPU shaders. I prefer GLSL, but code any language will do for me, I'm ok with translating it on my own ...
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PHP and Enumerations

... Depending upon use case, I would normally use something simple like the following: abstract class DaysOfWeek { const Sunday = 0; const Monday = 1; // etc. } $today = DaysOfWeek::Sunday; However, other use cases may require more validation of cons...
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Sharing a result queue among several processes

The documentation for the multiprocessing module shows how to pass a queue to a process started with multiprocessing.Process . But how can I share a queue with asynchronous worker processes started with apply_async ? I don't need dynamic joining or anything else, just a way for the workers to (r...
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mkdir -p functionality in Python [duplicate]

...hell from within Python. I am looking for a solution other than a system call. I am sure the code is less than 20 lines, and I am wondering if someone has already written it? ...
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Android adding simple animations while setvisibility(view.Gone)

...yout like changing view visibility or view positions android will automatically create fade/transition animations. To use that set android:animateLayoutChanges="true" on the root node in your layout. Your second option would be to manually add animations. For this I suggest you use the new anim...
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Greedy vs. Reluctant vs. Possessive Quantifiers

...leaving the "foo" at the end of the string unmatched). Now, the matcher finally matches the f in the regex, and the o and the next o are matched too. Success! A reluctant or "non-greedy" quantifier first matches as little as possible. So the .* matches nothing at first, leaving the entire string un...
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How to check that an object is empty in PHP?

... empty doesn't actually check if an array is empty, empty($var) equivalent to (!isset($var) || !$var). You can replace your empty($arr)s with !$arr since array() == FALSE – Timothy Zorn Aug 20 '15 at 18:35...
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Javascript sort array by two fields

...iot proof - but doesn't seem necessary. function getSortMethod(){ var _args = Array.prototype.slice.call(arguments); return function(a, b){ for(var x in _args){ var ax = a[_args[x].substring(1)]; var bx = b[_args[x].substring(1)]; var cx; ...
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How to create a database from shell command?

...for something like createdb in PostgreSQL or any other solution that would allow me to create database with a help of a shell command. Any hints? ...
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How do I hide the status bar in a Swift iOS app?

... You really should implement prefersStatusBarHidden on your view controller(s): Swift 3 and later override var prefersStatusBarHidden: Bool { return true } ...