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How to use glOrtho() in OpenGL?
...use OpenGL coordinates start from the bottom left corner of the window. So by flipping, I get a more conventional (0,0) starting at the top left corner of the window rather.
Note that the Z values are clipped from 0 to 1. So be careful when you specify a Z value for your vertex's position, it will ...
IntelliJ 13 - Add Navigate Back/Forward to toolbar?
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For some reason the toolbar is not visible by default.
In the View menu, select Toolbar. That should fix it.
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Using Transactions or SaveChanges(false) and AcceptAllChanges()?
... means if the transaction actually throws an exception you can compensate, by either re-trying or logging state of each contexts ObjectStateManager somewhere.
See my blog post for more.
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node.js child process - difference between spawn & fork
...s the need for many processes/core. You can actually decrease performance by spawning too many workers for your machine/scenario.
Ultimately you could use spawn in a way that did the above, by sending spawn a Node command. But this would be silly, because fork does some things to optimize the pro...
PostgreSQL return result set as JSON array?
...SON array when the inner select (from t) returns zero rows. This is caused by aggregate functions always returning NULL when the selecting over no rows and solvable by coalesce: array_to_json(coalesce(array_agg(t), array[]::record[])).
– Hannes Landeholm
Mar 3 ...
Rails Model, View, Controller, and Helper: what goes where?
In Ruby on Rails Development (or MVC in general), what quick rule should I follow as to where to put logic.
10 Answers
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Accessing the logged-in user in a template
...example, filter function default('') should be nice when user is NOT login by just avoid annoying error message.
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Why does a function with no parameters (compared to the actual function definition) compile?
...parameter-list is the list of parameters that the function takes separated by commas. If no parameters are given, then the function
does not take any and should be defined with an empty set of
parenthesis or with the keyword void. If no variable type is in front
of a variable in the paramater ...
How Can I Set the Default Value of a Timestamp Column to the Current Timestamp with Laravel Migratio
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Can this also be used for PARTITION BY statements in your tests?
– Glenn Plas
Jan 2 '14 at 17:15
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How many system resources will be held for keeping 1,000,000 websocket open? [closed]
...ns and what server resources would this consume? The answer is complicated by several factors, but 1,000,000 simultaneous active socket connections is possible for a properly sized system (lots of CPU, RAM and fast networking) and with a tuned server system and optimized server software.
The number...