#920: Qsound <-> openAL conversion / cleanup
---------------------------+------------------------------------------------
Reporter: Buginator | Owner:
Type: task | Status: new
Priority: major | Milestone: unspecified
Component: Engine: Sound | Version: unspecified
Keywords: | Operating_system: All/Non-Specific
Blockedby: | Blocking:
---------------------------+------------------------------------------------
Since we are not using Qsound (the original sound API that warzone used),
there really is no reason why we need to convert the sound to 'Qsound
format' for lack of a better term.
DX was left-hand coordinates, openGL is right-hand coordinates, and qsound
is ...unsure, but it looks like it is closer to R-HC, otherwise, I don't
think they would have to convert anything, but it might be a hybrid thing.
*shrug*
The issue we have now, is in r5763, Giel added routines that calculated
the forward and up vectors, and while it was "working"--as in, you could
hear sounds, the positioning of the sounds got really screwed up.
First problem is in Vector3f_EulerToForwardVector()
{{{
Vector3f dest = {
cosf(v.x) * sinf(v.y),
-sinf(v.x),
cosf(v.x) * cosf(v.y)
};
}}}
That seems to be the wrong axis from what we need?
The other issue is, the "up" vector in Vector3f_EulerToUpVector()
{{{
Vector3f dest = {
sinf(v.x) * sinf(v.y) * cosf(v.z) - sinf(v.z) * cosf(v.z),
cosf(v.x) * cosf(v.z),
sinf(v.x) * cosf(v.y) * cosf(v.z) + sinf(v.y) * sinf(v.z)
};
}}}
isn't correct either, and I am not quite sure why we need to calculate
this anyway? It isn't as if we can go below the map, so the up vector of
0,0,1 is all we need. (yes, I said 0,0,1, since we are dealing with
qsound idiosynchracies)
Anyway, in the committed code that fixes the sound orientation bugs that
we had, if whoever wants to fix the matrix routines to work correctly, be
my guest. You know, we could also get the view matrix from openGL, and
just plug that into openAL, and that would work, but that is besides the
point, and we really should be using our own matrix routines anyway, so we
can move to openGL 3 more easily. :)
Just remember to fix the qsound idiosynchracies as well, and we should be
good to go.
Note, my linux box is still down, suffering from ichabod craneitus, so I
can't test on that.
--
Ticket URL: <http://developer.wz2100.net/ticket/920>
Warzone 2100 Trac <http://developer.wz2100.net/>
The Warzone 2100 Resurrection Project
_______________________________________________
Warzone-dev mailing list
[email protected]
https://mail.gna.org/listinfo/warzone-dev
