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[02:46:35] <KittyCat> code was updated. now it keeps the playback time of the file..
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[19:02:34] <juanmabc> hello, I have problems with using double instead of float (my first attempt for accuracy), the spec says "Any 3-tuple of valid float/double values is allowed" but of course the compiler warns about double instead of float, I miss alListener3d(v),... in the spec, what is the openal position about it?
[19:33:22] <angasule> juanmabc: yes, that is a problem, OpenAL currently works with float
[19:53:39] * KittyCat is back.
[19:53:41] <juanmabc> the only place where I find something about it is: http://opensource.creative.com/pipermail/openal-devel/2004-February/002410.html
[19:55:28] <juanmabc> I switched ode and opengl from float to double, and the difference seems notable
[19:58:02] <KittyCat> hmm...
[19:58:40] <KittyCat> would it be much of a problem if the API could take in doubles, but still only used floats for internal calculations?
[20:01:06] <KittyCat> note that passing around doubles can actually worsen performance a bit for 32-bit systems. any struct or >32-bit type passed by value is automatically passed by reference instead
[20:01:42] <juanmabc> I don't know how opengl implement it, but it does implement it, using float for internal calculations isn't missing the accuracy?
[20:02:27] <KittyCat> right. but using doubles for calculations can reduce execution speed
[20:03:58] <juanmabc> accuracy at the cost of performance is the point of using (better selecting to use) double
[20:05:55] <KittyCat> yes, but unfortunately, you can't pick between them at run-time. if you do doubles internally, then even if the app only uses the float functions, they'll get the speed hit of doubles
[20:06:22] <KittyCat> at most it could be a compile-time option, but that doesn't seem like a good solution
[20:14:20] <juanmabc> I have seen ode implement it at compile time, and mesa3d seems to use float for internal computations
[20:27:37] <juanmabc> I think openal won't change it, but personally I prefer the ode way, define a "real" type which is configurable at compile time and use it instead of float/double
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