"Mirror" Effect on Shapes IN Titan

[kox]

Hello guys

Is there a way to do this:
I want to record a shape with, say Circle Even.
But I want the movement to start in the center of my row of fixtures and moving out.
So I the left side og the stage will be a "mirror" of the right side.

This could also be used with other shapes.
Pan saw, Tilt saw, Dimmer Spread, etc.

All the Best

Kox

[icke_siegen]

It should work like this (I havent'd tried myself yet):
- change the fixture order - either in the group before creating the shape, or once the shape is running. The fixture order should then be something like (I use 10 fixtures in my example) 5 - 4 - 3 - 2 - 1 - 1 - 2 - 3 - 4 - 5 (it would have been 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 in the beginning)
- then, when the shape is running, you might want to invert the shape for the first half of the fixtures

[niclights]

To create a symmetrical circle you need to reverse half of the fixtures and also set phase offset to 180 degrees. Note that is currently not possible to synchronise adjustments within the programmer and so it might not look correct during creation, but when you record and replay it will be fine.

[kox]

Thanx guys...

Icke_siegen:
Didn't you mean 5 - 4 - 3 - 2 - 1 - 6 - 7 - 8 - 9 - 10 ?

Nickights:
It worked as you said, but with different success depending what kind of shape...



I remember using a Martin Maxzys 6-8 years ago,
it had the feature that you could decide where the shape should start.

If you chose the middle fixture, that would be the first to be affected by the shape
and then the shape would work out to left and right from that...

But I will never want that big clumpsy Maxzys desk again

[icke_siegen]

I really meant that order: makes the last fixture move simultaneously with the first one. Then: reverse half of them. Then, as Nic has pointed out, you might wish to adjust the phase angle. It depends from what you want to achieve.

[kox]

Hi Nic

You would group them in 1, 2, 3, 4 and 5
so when you select them the two no. 1's get selected at the same time ?

[niclights]

Avolites software uses fixture order to determine the order that spreads (offsets) are applied between fixtures. This is similar to the Maxyz function. But this is a different matter to a mirror or symmetrical shape.

In my example of the mirrored circle there is no spread and so the order is irrelevant. The phase offset is pretty much a unique requirement for circle.
If you wanted a mirrored pan or tilt you can simply reverse half of the fixtures or apply a 180 degree offset. They both achieve the same result. If you applied both a reverse and 180 degree offset to the same fixtures they would essentially cancel each other out.

If you wanted some fixtures to have a mirrored pan spread then you would use Sebastians method in combination with a spread value (ie. 10 fixtures = shape fixture order 5-4-3-2-1-1-2-3-4-5 and spread 5) and a 180 degree offset on one half. Reversing fixtures will not work correctly here.
If you wanted a mirrored tilt spread then you would do the same but without the 180 degree offset.

If you want to be really awkward and have a mirrored circle and mirrored spread then unless I've missed a trick you need to manually make one with a combination of pan and tilt. The Pan needs to be as per the mirrored pan spread example above (eg. shape fixture order 5-4-3-2-1-1-2-3-4-5 + spread 5 + half fixtures at 180 degree offset). The tilt shape should have an offset of 270 degrees and no spread. Both shapes should have exactly the same size and speed. Initially the easiest way to ensure this is to enter values numerically rather than by wheel.

That last one I'm not 100% happy about but it's close...

[kox]

Thanx again

I will try it Monday...
I know that sometimes the Vis doesn't show exactly what's happening in real life

I have 20 Alpha Spot 700 Hpe plus some LEDs for a show next week.
But don't have much time for programming on the day of set up,
so I'm trying to do as much as possible in advance.

Thanx to the both of you

[niclights]

As I suspected I wasn't thinking straight about the mirrored circle with mirrored spread. The tilt also needs a spread.

The correct version is as follows:

Pan with mirrored shape fixture order (ie. with 10 fixtures 5-4-3-2-1-1-2-3-4-5), spread 5, half of fixtures phase offset 180 degrees.
+
Tilt with the same mirrored shape fixture order and spread and all fixtures at 270 degree phase offset.

OR

The same except no phase offset on the tilt, half of the pan at 90 degrees and the other half at 270 degrees.

In both cases the speed and size must be the identical for the two shapes.


Hint: A good way to view this in Vis is to move the fixtures so they are centered in a theatre and then view it from the front. Set the position origin of the fixtures so they point straight forward and adjust the shape size so that it does not exceed the boundaries of the front wall.