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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 ...
How do I implement an Objective-C singleton that is compatible with ARC?
...n;
dispatch_once(&onceToken, ^{
sharedInstance = [[MyClass alloc] init];
// Do any other initialisation stuff here
});
return sharedInstance;
}
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With arrays, why is it the case that a[5] == 5[a]?
... on here than elementary school arithmetic. The commutativity relies critically on the compiler recognizing which operand is a pointer (and to what size of object). To put it another way, (1 apple + 2 oranges) = (2 oranges + 1 apple), but (1 apple + 2 oranges) != (1 orange + 2 apples).
...
typeof !== “undefined” vs. != null
...gument, or as a global variable), I think the best way to do it is:
if (my_variable === undefined)
jQuery does it, so it's good enough for me :-)
Otherwise, you'll have to use typeof to avoid a ReferenceError.
If you expect undefined to be redefined, you could wrap your code like this:
(functi...
Sort points in clockwise order?
...ow do I sort the points of this array in clockwise order (around their overall average center point)? My goal is to pass the points to a line-creation function to end up with something looking rather "solid", as convex as possible with no lines intersecting.
...
How to create “No Activate” form in Firemonkey
...form.Caption));
if hWin <> 0 then
SetWindowLong(hWin, GWL_EXSTYLE,
GetWindowLong(hWin, GWL_EXSTYLE) or WS_EX_NOACTIVATE);
end;
{$ENDIF}
destructor TNoActivateForm.Destroy;
{$IFDEF POSIX}
begin
panel.release;
end;
{$ELSE}
begin
end;
{$ENDIF}
procedure TNoActivateFo...
Android SDK Manager Not Installing Components
Not sure what I'm doing wrong here. I installed the Android SDK Manager, and am now trying to install a platform like the Android Dev website suggests. Once I clicked install I got an error stating that the Manager could not create a temp folder within the Android directory. So I created it. Now I'm...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
...n your machine.
Here are some options that I use.
Test your web page locally on Firefox, then deploy to your host.
or: Run a local server
Test on Firefox, Deploy to Host
Firefox currently allows Cross Origin Requests from files served from your hard drive
Your web hosting site will allow requ...
Mixins vs. Traits
... answered Jan 26 '11 at 9:15
jk_jk_
4,87633 gold badges2121 silver badges2323 bronze badges
...
UITableView with fixed section headers
...ain table style but don't float buz
setting table style set to group.
[_tableView setBackgroundView:nil];
_tableView.backgroundColor = [UIColor whiteColor];
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