Help creating opening fan frame

[norty303]

Hiya, I'm trying to create a fan (15 or so points) that opens from a single point.

Easy you might say.... but I want it to open from one end rather than the middle. This is so I can have it on 2 mirrored projectors that open up a fan from each side of the stage.

I'm using FB3 so have LivePro, LiveQuick and Quickshow at my disposal.

At the moment the best I've found is an X axis oscillator, but that only seems to work from the centre.

[-bart-]

In QS create a fan in the abstract gen size +100
then apply
key x position effect +100
osc x size effect (once?) 0 to 100
key x position effect -100

surely there is another way, but haven't found a simpler one yet.

[gottaluvlasers]

Im sure you have thought of this, but why not just make a beam sequence with multiple beam frames?

frame 1- beam on R
frame 2- 2nd beam on R
frame 3- 3rd beam on R
.
.
.
.
Frame 15- Final beam

So, a total of 15 frames.

Does that work for you?

-Marc

[norty303]

Not quite Marc because I want the fan to open from a single point of origin, rather than just step add new beams in succession.

So it will start with all 15 points at the point of origin, and then the gap between them will increase equally for all points until they are fanned out, but with point 1 remaining at the point of origin.

I think bart has nailed it with the 'key X position' actually, as I couldn't work out last night how to shift the origin point to one edge of the frame, but that looks like the trick.

I'll try it when i get home.

[gottaluvlasers]

Aaaah. ok. i gotcha. sorry, i misunderstood the effect you were looking for. seems like a cool one though. take some pics/video when you get it figured out. i would like to see it.

-Marc

[norty303]

Hopefully, here's a QS abstract file of what I was trying to achieve.

Now if only there was a way to get that into a format so I could use it in LivePro....

[soforene]

I had a play with Showtime and created a frame with a single dot then created several pan effects that moved the dot from its original position across to the right by 12 degrees at a time.
Do it 15 times and I think this is what you were trying to achieve.

[norty303]

Yep, thats the one!
It's interesting the number of different approaches to this. Rob Stanwax did one for me as well, but just use a rotation on the Y axis, with the 'hub' at one end.

[hobbybob]

Yup that's how Rob taught me once in Mamba.
Creating a line, with accents and then rotate in Z.
Placing the pivot point the left and then rotate the line in.
In my case i wanted it to start in the middle, so then you leave the pivot in the middle.

But interesting to see how it's done in QS, because i was looking for this particular effect also.
So tonight i will check it out. Funny to see the different approaches indeed.

[-bart-]

I purposely didn't go for the rotation-version. The size-version remains 'flat' in 3d.
When perspective is used for some reason, a flat animation remains unaffected.