[openal] Noob questions on oepnAL
maxmaini at gmail.com
Mon Jan 11 04:22:54 EST 2016
On 10 January 2016 at 16:42, Chris Robinson <chris.kcat at gmail.com> wrote:
> On 01/08/2016 06:28 AM, Massimiliano Maini wrote:
>> Nice ! I had a look at AL_EXT_SOURCE_RADIUS.txt on GitHub: I do understand
>> the general idea (within the "volume" of the source, provide less
>> localization), but what does "The source has a raised cosine shape" mean
>> exactly ?
>> I know what a raised cosine is, but I can't figure out exactly what this
>> means for a source in a 3d space.
> I presume it has to do with the way the directionality is reduced as the
> source and listener move closer to each other within the radius. That is,
> when the distance between the source and listener is at the radius, the
> source is still directional, but at a low order. As it moves closer, the
> volume of the remaining outputs is raised using a raised cosine curve until
> the output is non-directional.
That makes sense, but not if it's summarizes as "The source has a raised
cosine shape" :)
Thanks for all the replies !
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