NOTIFICATION: change to gravity behaviour and jump speed

rogerborg · Post by **rogerborg** » Sat Nov 22, 2008 11:46 pm

See bug https://sourceforge.net/tracker/index.p ... tid=540676

SVN 1811 (which will be in 1.5) makes a significant internal change to the way that FPS camera jump speed and collision response animator gravity interact. The behaviour is now much more realistic, but it will almost certainly require you to adjust the jump speed and gravity in your user apps.

Please see example 07 and the Demo app for suggested new values. Note the new suggestive values are "realistic", i.e. 10 units per second squared gravity, and 3 units per second jump speed.

I have fixed/changed the behaviour whereby the collision response animator would divide the provided gravity vector by 1000.f. This has been a point of contention for a long time, but we've erred on the side of backwards compatability up to now. No more.

Followup bugs, comments or suggestions are very welcome.

BlindSide · Post by **BlindSide** » Sun Nov 23, 2008 12:57 am

Let me just chime in and say that I love these posts you are doing lately, keep up the good work.

Halifax · Post by **Halifax** » Sun Nov 23, 2008 1:32 am

BlindSide wrote:Let me just chime in and say that I love these posts you are doing lately, keep up the good work.

I have to agree. It's not like things weren't being done before, but now it seems as though things are getting done at lightning speed.

Dorth · Post by **Dorth** » Sun Nov 23, 2008 3:59 am

AND they are discussed/explained, which is good ^^

MasterGod · Post by **MasterGod** » Sun Nov 23, 2008 5:15 am

Good work!

Mirror · Post by **Mirror** » Sun Nov 23, 2008 10:28 am

thanks roger!

rogerborg · Post by **rogerborg** » Sun Nov 23, 2008 10:33 am

See, this is all about corporate survival skills. hybrid wastes his time on silently making large numbers of substantial, significant changes, while I invest my time more wisely in over-promoting my occasional tinkering.

Mirror · Post by **Mirror** » Sun Nov 23, 2008 10:50 am

rogerborg wrote:See, this is all about corporate survival skills. hybrid wastes his time on silently making large numbers of substantial, significant changes, while I invest my time more wisely in over-promoting my occasional tinkering.

of course he does but you are being modest here

don't forget what napoleon said about modesty

JP · Post by JP » Mon Nov 24, 2008 9:37 am

Yeah nice one rogerborg, i like the interactive discussions about irrlicht changes and notification of changes that will affect our apps, good work!

wyrmmage · Post by **wyrmmage** » Mon Nov 24, 2008 6:22 pm

agreed....it's great to be able to discuss what's going on