InvMass or InverseMass?

Summary:

InvMass is used but doesn't exist?

InvMass or InverseMass?

sickbattery 13 Jun 2009 11:16

Hi,

I'm changing my copy of JigLibX from XNA to SlimDX and I just found something strange(?) … in line 1359 in JigLibX.Physics.PhysicsSystem there is this line:

#region INLINE: ptInfo.Denominator += body1.InvMass + Vector3.Dot(N, Vector3.Cross(body1.WorldInvInertia * (Vector3.Cross(ptInfo.R1, N)), ptInf1.R0));

Well, Body doesn't have InvMass, it has InverseMass and CollPointInfo doesn't have R0.

I mean, the engine works … *confused* … …
Am I missing something?

Best Regards.

Re: InvMass or InverseMass?

sickbattery 13 Jun 2009 12:41

It's because it's in "#region" right -.-?

I missinterpreted the line. I thought it was an inline compiler command.
… I should stop drinking that much coke.

Re: InvMass or InverseMass?

blup (guest) 13 Jun 2009 15:12

#region Why does this work?! ;)
#endregion

Yep, you are right. Would be nice to hear from you when you get something working with SlimDx.

Re: InvMass or InverseMass?

sickbattery 13 Jun 2009 16:02

I'm very new to SlimDX and I can't use it yet oO.

This sounds pretty stupid, right ^^ ?

However, I guess I've changed everything right to get it running with SlimDX. The compiler doesn't throw errors anymore. I wrote some classes to work around the Vector3 amd Matrix addons from XNA and since I was kinda very active in Farseer I know that they had a MathHelper. So I took that class (it's Ms-PL, right ^^ ?).

Now I'm trying to get some stuff rendered -.- …

I'm simply not ok with XNA's license (it's unclear and I' afraid they are going to add more stuff to the framework that one can't use for commercial games, so ..) and I'm kinda still searching for a good mix of physics / graphics framework … I already did DirectX and Managed DirectX but it's a long time ago and I'm used to XNA … well my situation is very complex xD … all I'm trying to say is: My posts might sound stupid sometimes, but I'm actually not quite :).