[Openal] OpenAL Basics

[Daniel PEACOCK]

Hi Samuel,

As you've noticed you are just retrieving the Source's Gain parameter level
(which is always the same value as you set).  There is no way to retrieve
the *post-attenuation* gain level from OpenAL.   If you need this
information, you will have to compute it yourself (formulas are in the AL
Spec.).

Dan
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             SamuelSmith                                                   
             <samuel_smith2000                                             
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                                       Re: [Openal] OpenAL Basics          
                                                                           
             04/10/2007 02:50                                              
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How do I go about returning the result of the distance model calculation
(the
gain)?

What I have done (in the display function of my C++/OpenGL/OpenAL project):

ALfloat gain = 0;
alGetSourcef(Source[0], AL_GAIN, &gain);
cout<<"GAIN "<<gain<<endl;

(Source[0] is the source in the array of sources, such as: alSourcef
(Source[i], AL_GAIN,     0.5      );)

For some reason my result is always 0.5 (the value originally given to the
source in the LoadALData function) and this value never changes no matter
what the difference in distance is between the listener and source and I
can
clearly hear the change of volume in the sound.
--
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