Re: [LCtalk] composing scenes from different queues (continued)

[Fokko van Duin]

At 11:29 +0100 13-03-2005, MisterJ wrote:
> I sometimes do this
>
>  -- cue 2
>  show 201.1 for ever, crossfading for 3s
>  -- cue3
>  show 300.1 for 0.05s, crossfading for 3s (fade out all channels)
>  show 202.1 for ever, crossfading for 3s (fade in some new channels)
>
> Here "300.1" is a total blackout. Thus not just the channels that 
> were active in 201.1, but all the channels.
>
> I currently have no dimmers attached to my lanbox, so I can only 
> look at the scene window and the dmx-output window to see the 
> effect. The above approach could sometimes mean that I fade out some 
> channel (during 0.05 seconds) and then fade it back in to its 
> previous value. So this means there is a dip for that channel during 
> 0.05 seconds.

Why so complicated? Just make scenes (cues) with your channels to the 
right values, so Off channels should be zero, others set to their 
values. your 300.1 is not needed if Off channels are set also in 
202.1. It's far more logical, and you can call such a cue at any time 
from any situation.


> Two questions on this matter:
>
> - will this dip be noticable by the audience? I assume not, but I'm 
> asking to be sure. I'm just using normal PC spots and other halogeen 
> lamps..

Probably not as there is a fade time of 3s, but with no fade you will see it.


> - sometimes a "show for 0.00s" also seems to do the trick, but not 
> always. What is the exact reason for using 0.05 and not 0.00? It 
> seams like a "0.00" is sometimes ignored, and sometimes not...

A hold of 0 means do next action within the same process slice of 
50ms. This means if next action is also a show scene your layer is 
erased and overwritten with next scene even before your scene of 0s 
made it into the mixer. A hold of 0 is only used when you want 
different actions to be processed within the same time slice.


--
Fokko van Duin,                     Creators of the LanBox-LC
CDS advanced technology bv,         DMX lighting controller.
http://www.cds.nl/                  http://www.lanbox.com/

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