[Lennart Wåhlin]

Add a Compositing Tag to the object.
In the “Exclusion” tab drag the object itself into it.
Then check the first “arrow thru line” symbol in there
and it’s all fine 🙂

Cheers
Lennart

aka tcastudios

[Lennart Wåhlin]

Use the Point Cache Tag ( instead of cacheing within the Cloth tag).
Then use the PointCache Scale parameter to slow it down.

Cheers
Lennart

aka tcastudios

[Lennart Wåhlin]

Good sport! 🙂
Now (or when you are pretty sure) nail those settings by settings keyframe
for all parameters at frame 0 so you don’t slip it!

And you must link to any final result, ok?

Cheers
Lennart

aka tcastudios

[Lennart Wåhlin]

Frequency 10 = 1 sec loop
Turbulence doesn’t loop so you can do as Adam suggested
add a noise deformer for the turbulence and have
the FlagDeformer do the “waving”.

For a look with more “umpf” you can have a look
at a 8min tut I did (QT) looping Cloth.

https://www.tcastudios.com/xfiles/ClothLoop.mov

Cheers
Lennart

aka tcastudios

[Lennart Wåhlin]

I frankly can’t tell how much help I can provide until
you have figured out the projector(s).

Try make a 1×1 meter square with a cross in it from corner to
corner and a circle in it.
Make it in Cinema and tape it on the (real) wall.

Test and check until you find out the proportions of your setup.

This is the prime way we do it. The designer and contractors provide
us with messurements, we then do “Default Nulls” and they confirm it.
Once the Nulls are perfect/confirmed we can start producing the content
having the nulls as our reference.

Cheers
Lennart

aka tcastudios

[Lennart Wåhlin]

No pun, just an observation, there must be something fundamental wrong
in your settings, like scale or projector settings.

Leaving all mathematics aside, if you have modeled your subjects
to scale and placed your camera in the scene where it should be in
real life, setting it to approx values, looking thru it and render, it should
maybe not match perfectly, but be in the area of close enough.

There should be no reason why the subjects should be way to big or small.

So, two things.
Check out how the zoom really works in the projector.

Then, the offset you are talking about (projector projects asymetrically
up, (north I suppose)) is the “FilmOffset” parameters in the Cinema Camera
Object.
The tech info for the projector, if I recall, states a +-16 degrees range for this.

Still, as mentioned before, as the Cinema camera is a pinhole camera,
no lens distortion is “made”. That sort of keystoneing has to be done
in the playback program. Or be made via a post app.

Most of my work is projection and LED content, but I must confess in a
much larger scale, so the projector side is handles by the projector/LED
contractors.
Still, no matter how much preparation , things are tweaked on site, both
contentwise and hardware.

Let us know how you are progressing.

Cheers
Lennart

aka tcastudios

[Lennart Wåhlin]

A typo of mine: I meant 1024×768 of coarse, as that is 4:3.

Cheers
Lennart

aka tcastudios

[Lennart Wåhlin]

I can’t say I see much of a problem here
Model your stuff at scale, place the camera in the scene
corresponding to where you will put your projector in real life.
(Thou try to have it placed horizontally)

In SteadyDOF type in the values from earlier post of mine
(I used the same tech info as you provided in the dload.)

Have your render output set to 1024×576.
The result is as good as it could get.
You will still have to fine adjust the projectors zoom
and keystone in the end.

Have in mind that the Cinema camera is a “pinhole” camera,
it has no physical lens artifacts.

Cheers
Lennart

aka tcastudios

[Lennart Wåhlin]

Please check the install instructions.

“Load SteadyDOF and SteadyQTVRv2 from the “SteadyTOOLSObjects” folder”

That is, they load into the document as objects with their expressions attached.

Cheers
Lennart

aka tcastudios

[Lennart Wåhlin]

Looking at the specs of the projector we have:
DLT width 18mm, height should be 13.5 (4:3 ratio).
That gives an aperture of 22.5. (Your 2.5 might be a typo?).
(Aperture and focal length is always in mm.)

The “digital” equivalent of the focal length 28.4 (35mm camera) is 14.75.

You can use a dof calculator to check this, and I even made
a free one for Cinema that you’ll find at:

http://www.tcastudios.com -> xfiles -> SteadyTOOLS.

Hope this can help a bit and I’m not missing you intention.

Cheers
Lennart

aka tcastudios