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What does glLoadIdentity() do in OpenGL?
...m the matrix's current 'position', not from the origin. But if you want to start over at the origin, that's when you call glLoadIdentity(), and then you can glTranslate from the matrix which is now located at the origin, or glRotate from the matrix which is now oriented in the default direction.
I ...
JavaScript global event mechanism
...to after exploring this now (iframes, stack overflow, etc.).
Here is the start of a script that catches many of these errors, so that you may add more robust debugging to your app during development.
(function(){
/**
* Capture error data for debugging in web console.
*/
var captures = [];
/*...
Git fast forward VS no fast forward merge
...nk you're going to, you don't always branch from the best place. Maybe you start a couple features from one place, start working on one of them, realize it's generic, and fast-forward the other one to it before diverging.
– Cascabel
Jul 15 '11 at 1:02
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What is the meaning and difference between subject, user and principal?
...principals of type 'service account' may not even have a password. When we start categorizing types of principal we create subsets. Does that help? Or did I just stir up more mud?
– T.Rob
Dec 29 '17 at 4:19
...
Looping in a spiral
...ing a spiral which can be expressed concisely using induction.
Base case: Start at (0, 0), move forward 1 square, turn left, move forward 1 square, turn left.
Inductive step: Move forward n+1 squares, turn left, move forward n+1 squares, turn left.
The mathematical elegance of expressing this prob...
With bash, how can I pipe standard error into another process?
...| proc2
Provided stdout and stderr both pointed to the same place at the start, this will give you what you need.
What the x>y bit does is to change file handle x so it now sends its information to where file handle y currently points. For our specific case:
3>&1 creates a new handle ...
OAuth with Verification in .NET
...ere doing this in an external browser you'd use System.Diagnostics.Process.Start(url).)
Setting the Url property causes the WebBrowser control to navigate to that page automatically.
When the user clicks the "Allow" button a new page will be loaded. It's an HTML form and it works the same as in ...
Difference between dispatch_async and dispatch_sync on serial queue?
...1: dispatch_async a time consuming task (task 1) to serial queue
Thread 2: start executing task 1
Thread 1: dispatch_async another task (task 2) to serial queue
Thread 2: task 1 finished. start executing task 2
Thread 2: task 2 finished.
and you always see 12
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Technically, why are processes in Erlang more efficient than OS threads?
...e mapping, etc.).
Erlang processes use dynamically allocated stacks, which start very small and grow as necessary. This permits the spawning of many thousands — even millions — of Erlang processes without sucking up all available RAM.
Erlang used to be single-threaded, meaning that there was no ...
Symbolicating iPhone App Crash Reports
...ess shown in the stack trace, the address has to be normalized against the start memory address the app is loaded into. More details see this answer: stackoverflow.com/questions/13574933/…
– Kerni
Feb 21 '13 at 16:53
...