hello, i was wondering what the propper way to do mouse look was?
right now every frame im getting the position of the mouse,
subtracting the midpoint of the screen from the mouse position,
multiplying X and Y by a constant, rotating my camera by those
numbers, then warping the mouse back to the middle of the screen.
Ive had reports from high end systems that mouse look is acting as
though they are getting really low fps - that its really jumpy
instead of smooth, but they are reporting 60fps so this doesnt make
sense to me since thats the same fps i get.
That might be a result of an event handling problem, or simply that
the mouse has a very low frame rate. Serial mice and even some PS/2
mice can be limited to anything from ~15 through 50 fps, which means
you just won’t get smooth mouselook without some tricks.
Try interpolating or filtering the mouse events before you feed them
to the 3D engine. That’s what the “smooth mouse” option found in many
3D games does. That should give you smooth animation, but the bad
news is that it adds control latency.
Basically, if the mouse frame rate is the problem, the only real
solution is to replace the mouse and/or configure it properly. Most
drivers have some way of setting the frame rate, and many PS/2 and
USB mice (at least the Logitech ones) can be configured to at least
100 Hz.
Is there a better way to do mouse look?
Only if you’re on a platform that supports relative mouse move events
without screen clamping. Doesn’t help the mouse frame rate, though.
//David Olofson - Programmer, Composer, Open Source Advocate
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— http://olofson.net — http://www.reologica.se —On Friday 20 February 2004 19.46, Alan Wolfe wrote: