Re: Technical question

[Urs Liska]

Am 08.04.2016 um 00:15 schrieb Simon Albrecht:
> On 07.04.2016 21:51, Philip Bergwerf wrote:
>> Hello everyone,
>>
>> in the past i have woked with blender which is a 3d open source
>> modelling,
>> animation program. And i noticed that when you have a fast video
>> card, the
>> pogram works much faster. How about lilypond? lilypond works very
>> slow in
>> grapic way. When my score becomes bigger i have to wait long to see my
>> result and this slows me down in my working proces.
>>
>> So i was wondering if lilypond could work faster if the calculations are
>> calculated by the gpu in stead if the cpu? Because that is another
>> sort of
>> processor?
>
> My understanding is quite limited, but I believe this can’t give you
> much of an advantage, since most of the calculations done in LilyPond
> are not directly about graphics. If you compile a larger score, you’ll
> see that most of the time goes by with ‘Interpreting music’,
> ‘Preprocessing graphical objects’, and ‘Fitting music onto <x> pages’.
> Most of these are heuristic algorithms trying to find the best layout,
> not actually drawing the score.

Even if it *is* drawing the score it does so by creating PostScript
commands. Everything where the graphics card might help is the *display*
of the score - and that is done exclusively in the PDF viewer - after
LilyPond has finished its job.

Urs

>
> HTH, Simon
>
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