[Plib-users] Billboarding problem

[Luca M. <luc...@li...>]

Hi everyone,

I'm working on the FlightGear project and I'm trying to a=
dd a particle system to simulate the smoke. 
I've solved the main proble=
m to add it into the simulator - now the particles are visible into the =0D
=
scenery and follow the movements of the aircraft  - but I've a problem wi=
th the billboarding functionality. 
I've found that, and I don't know th=
e reason of it, the GL_MODELVIEW matrix, used to rotate the 
objects doe=
sn't change. In other words the data stored into the matrix is always the=
 same, even 
when the point of view is moved. 
There's a way to solve t=
his? I cannot use the animations (the billboard animation) that FlightGea=
r 
offers because I don't load an external object. 
There's another mat=
rix that could be used to calculate the correct rotation. 

Hi, Luca=0D
=

PS:Norman, I don't know if you remember the question I've made some tim=
e ago but now 
I understand what you have told me. I've to add the parti=
cle system to the root and not to 
the aircraft; the position of every p=
article could be taked from the position of the aircraft. =0A=0A=0A=0A___=
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