Re: fastest way to get results from scripted op onto shapes.

[Alan Jones <skyphyr(at)gmail.com>]

I'd go for a UserDataBlob. It would be much nicer to work with in C++
though and make it really easy - just throw together a struct for your
data and pump that straight into the userdatablob and pull it back out
again. 

Hope this helps,

Alan.

On 9/1/05, Sam Hodge <sam.hodge(at)rsp.com.au> wrote:

Hi Guys,

I have produced a scripted op that from an input of 7 sliders outputs
the following info, 7 integers and 7 floats.

It runs very quickly from my tests in python it updates at a rate of 600fps.

The problem is connecting it up to control the scene.

The integer represent the position in a very long array (2187 long), and
the float represents the value of that position in the array, all other
values in the array are zero.

So I can explode this out to an array of 2180 zeros and 7 non zero
floats, but it seems wasteful.

or I can do what im doing now and use a conditional _expression_
<_expression_>cond(obj.parm.index0 == 17, obj.parm.value0,0)</_expression_>

but this means that a few hundred params will be looking at the result
of the 7 integers, to see how the _expression_ is evaluated.

in the long run the value of the float will control a shape in the mixer.


So here are my questions:

What is the most efficient data structure that can hold 2187 floats,
that is accessible through an _expression_?

Can you instantiate scripted ops so the same code is evalated on the few
hundred shapes,  overcoming the need to used an _expression_ for each shape

Sam

--
sam hodge
technical director - sam.hodge(at)rsp.com.au
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