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speed

Started by derjerg Jun 27, 2009 at 9:39 AM 3 replies 2.3k views

Original Post

Jun 27, 2009 at 9:39 AM

i really enjoy learning open gl through this amazing tutorial and i get along with it really great. theres just one problem. the programs run much to fast. is there a general way to reduce speed? i think its not the best way just reducing rotation-values, right? thank you in advance, jerg

deadstar

Jun 27, 2009 at 9:44 AM

You should update your rotation using Delta time. You need a function to return the time elapsed since the last frame, and use it something like:

Rotation += 0.1f * GetDeltaTime();

That will give you a constant rotation speed regardless of the FPS.

derjerg

Jun 27, 2009 at 11:33 AM

thank you for your quick answer. this idea sounds great.
eeehm, my skills just aint good enough to implement it, though i tried doing it on my own, after i found some information about getdeltatime().

could someone please be so kind to modify lesson 9's source?

Caste

Jun 28, 2009 at 1:33 AM

I'm still working on completely new lessons and there everything will take account of the elapsed time. Thus I hope I'll finish the lessons in the next time and show how to do time based animations.

derjerg

Jun 29, 2009 at 7:37 AM

that would be awesome!
i'm a little stucked..

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