Hi,
This is just out of curiosity after reading Grey's thread. What actually is it?
I searched Google but it didn't appear to have anything on it that looked as though it related to programming, although that may just be because I'm not actually sure what I'm looking for.
I could have my definitions messed up, but I think Delta Time is a frame limiter which compensates for lost or gained frames by making animation more or less smooth.
If the app is going above the anticipated frame rate, movements are smaller. If the app is going below anticipated frame rate, movements are bigger.
This way, everything happens in the same amount of time without skipping frames and without delays between frames.
I use that technique here:
http://www.codersworkshop.com/viewshowcase.php?id=947(Source included).
Delta is the symbol that you use for "Change of" in maths. (its that sort of triangle thing)) So for example delta distance traveled over delta time, is speed (velocity) ie MPH.
When people use it in computing terms, they mean "Something that happens over time/ The time change"
So if you have (say), a sprite moving accross the screen, it could move one pixel a second, or one pixel a frame. The delta time being a second or a frame respectivly.
Now if something goes wrong with your game logic, (Or whatever), and it spends too much time doing somthing, you might "miss" a frame.
You now have the choose of just draw the frame that I missed, or you could find out how late it is, and draw the correct frame.
Imagine a sprite needs to go from the left to the right of the screen in one second. The change in time (Delta time) is one second. The change in position is Screen width. When you come to draw the frame, you find out how much of the second has passed. And draw the sprite at that percentage of the ditance accross the screen.
Delta Time just means "change in time". In other words, the number of seconds or milliseconds which the last frame took to render, and the amount of time by which you must step your physics simulation forward for the current frame.
Ie, if your last frame took 16 milliseconds, then 16/1000 = 0.016 seconds, which is what you multiply "100 meters per second" (or pixels, or arbitrary units) by to calculate how far to move your object that frame.
It is also the time when you watch chuck norris killing rebel soldiers in a rouge state:
Remember, They don't negotiate with terrorists... they blow them away!
It is also the time when you watch chuck norris killing rebel soldiers in a rouge state:
A red state? the soviet union?
It is a beer!!! OK it is a BEER MUG!
see!
Instead of Miller Time it is Delta Time.
Allegedly there is also something called the Delta Beer Festival. AND if I google correctly Delta Air Lines is offering FREE BEER!!!
Actually delta time could mean many things. In the case of game development, it's the changing of time of the frames and delta time is a way to control it...sorta.
Also. according to this web site its states : "Delta Time is a photographic journey through the poorest communities of the Mississippi Delta."
http://www.kenlight.com/publications/deltatime/index.htmlBut you can't go wrong with Chuck Norris from DELTA Force :
And of course the real DELTA guys doing their thang (BTW, you did NOT see these guys):
And play some war games (actually this is Marine Force Recon....just thought it was cool to stick in)
Is there anything that can't be linked to Chuck Norris?
(BTW, you did NOT see these guys)
They could do with changing their camo.
killing rebel soldiers in a rouge state
Arnt rebel soldiers in rouge states on our side? He sould either kill state soldiers in rouge states, Or rebel soldiers in not-rouge states