[Opensim-users] Scripting: 10x speed boost with C#

[Henry Wills]

"... *configured all LSL scripting delays down to zero* :)"

Where do I find that, Justin? I'm not sure I did that on my sim.

On Sun, Apr 24, 2011 at 8:36 PM, Justin Clark-Casey <
jjustincc at googlemail.com> wrote:

> Very interesting, Jeff.  The scripting engine in OpenSim transforms LSL to
> C# before compiling it so there wouldn't be a time difference due to
> interpretation.
>
> Of course, I'm presuming that you had configured all LSL scripting delays
> down to zero :)
>
>
> On 23/04/11 11:20, Jeff Kelley wrote:
>
>> I like physics. And I like colors.
>>
>> I scripted a blackbody spectrum in LSL for a science sim. It was
>> reasonably
>> fast, 1.8s for a 400 points spectrum (380 to 780 nm) including Planck's
>> law
>> computation, CIE to RGB colorspace mapping with gamma correction, display
>> with osDynamicTexture.
>>
>> That was fast, but not enough in my mind. Real-time interaction should be
>> in the 1/10s range, not the second.
>>
>> So I rewrote the thing in C#. The key was to get rid of all llFunctions,
>> LSL lists and string handling functions, math functions, even building
>> manually the drawlist instead of calling osDraw routines. Execution time
>> is
>> now in the 0.1-0.2s range.
>>
>> Running Opensim 0.7.0.2 + MONO on a MacMini server, 2.53GHz Core Duo, 4GB.
>>
>> LSL code:       http://pastebin.com/MxsivsKS
>> C# code:        http://pastebin.com/UR2gsnU7
>>
>> Nice!
>>
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>>
>>
>
> --
> Justin Clark-Casey (justincc)
> http://justincc.org/blog
> http://twitter.com/justincc
>
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