Cineversity

Hi, I needed to set up the stadium crowd flip cards trick. So using mograph and building many planes arranged in a square using grid mode and the cloner. All is working fine for the mograph, but not sure what projection to use. All of the planes (cards) need to form an image, or display the provided artwork over the assembled planes or cards. Then when they flip, that cards images is still attached to it. Here is an example. https://www.pond5.com/stock-footage/item/000109248-patriot-stadium-crowd-flip-cards-england
Any ideas would be appreciated.
Thanks, Jon Lewis

Hi Jon Lewis,

Typically the answer would be in the Fix Texture for the Cloner and the Texture Projection set to Flat.
More about this here (Scroll down)
https://help.maxon.net/us/index.html#OMOGRAPH_CLONER-ID_OBJECTPROPERTIES

Flat, will have, more often than not, unwanted side effects. Besides that, the set up is fragile. The simplest hint for the limitation is the X or Y Texture fix (no Z), the workaround would be rotating the Cloner. Please have a look here:
https://www.amazon.com/clouddrive/share/Otk6MVyUPGt7lABjTAUk6O1bQTYEeRJJHpOldolqiXy
Use the two “spy-cameras” to see the problem. Rendering shows another.

I have checked the r21 setup, as I don’t use the suggested way of doing these things anymore. With some patience, you get what is in the file …_01.c4d (However, when it works, its fine.)

If you make the Cloner Editable (as well as Connect the clones) and produce UVW coordinates for each image/material, you can use the Fracture Object. This is rock solid, production-ready from my point of view.
You will find an example in the file (…_11.c4d)

A little bit more tricky to set up, but very powerful is the set up in file …_21.c4d, please have a look.

If you have a favorite one of the three, please let me know, and I will record a screen capture to detail the workflow a little bit more.

Project files:
https://www.amazon.com/clouddrive/share/aDBo4jjySkPmmHAS4JjyQQoe0pbQN8OmEP4BRySIc5G

All the best

Thanks much will try them out. And of course I had the material on the clone and not the object, so that helps. Duh.
Thanks much
Jon

You’re very welcome, Jon, thanks or the reply.

If you could give me the number of squares (e.g., 36x64) and the size of the square itself, I could set up a demo file.

I had a small error in …_11.c4d, here is the update
https://www.amazon.com/clouddrive/share/Vo5q6iGbSbxm0khjBpPVELSs4TqWKFY0XOoqeFP5bek

Cheers

Cool, will look at, 36 x 36 will work for now. I’m not sure of the final size yet. I was looking to be able to add a random effector to give it some randomness. But it looks like a couple of your examples are with polygons that have segments.
For flat It was working, but trying to find the best position for the texture. And when it went straight up the image is distorted.
The Fractor version I’ll re look at the updated one. I enclosed a file that we are using as a reference. Although it was done in Maya not C4D..
Thanks,
Jon

Jon, I just finished a 30x20 example.

Thanks for the update:
I will provide after lunch a 36x36.

All the best

that size is fine, I have no clue what the final will be. Just looking to get a good rig together.
Thxs
Jon

If you have the 30x20 example, that would be great. Also how are you building the polygons. I was using a plane and dividing it into segments and then make it editable, CC. I’m missing something to get it to work.
Thxs
Jon

Jon,

Please have a look at the file below and the screen capture: (36x36)
https://www.amazon.com/clouddrive/share/G4jx5CJBvkOCbAVimEI978DrACOExvlYoOAhSK5qlAc
(Please connect two of your images to the scene.)

In short, I produce this “one” polygon with a Cloner.
It needs two UV tags to work. One for the front and another one for the back.

Holding the sign with both hands, I assume that the flip works in the direction I have used. To get the second images to flip correctly, each line of the UV needs to be scaled to a negative one (-1). This is the only hard work on the whole thing, but then it is 100% stable.

The resulting polygon can be scaled, as shown.

All the best

Thanks for that, very helpful! Still working at it, working on getting and understanding the sequence to get the UV tags right. Got one working, but not completely sure how. Back at it tomorrow or later tonight.
Thanks much,
Jon

You’re very welcome, Jon, thanks for the reply.

Yes, the UV stuff is not explained in one line adequately. Let me know if there is any question, I’m happy to look into it. Keep in mind that this is a theme others might have, and any discussion about might be useful.

Enjoy

Thanks, sure if you can that would be great, would be good to understand what I’m doing better. Mainly how you get the UV tages to work right. And I guess that the Original clone needs to be turned into a Fracture Object too yeah?
Thxs!
Jon

Hi Jon,

Here is a short little run down. I used only a 3x3 object, as any greater number requires only to repeat the select UVs and scale them to -1.

Scene file and screen capture:
https://www.amazon.com/clouddrive/share/pf4giLKnyJnPHHg77m4vRhM1MnHlLKxL1QarSbQJu0F

Any other step show in this clip is independent of the number of “cards”, except of course setting up the Plane initially.

This is the fastest way I have found so far. This is for the way cards rotate around a horizontal axis. For a vertical, the selection and the scale must be different, of course.

Let me know if that gives you all the information to set up your own Crowd-Card-Flip scene.

All the best

Thanks that helps. Still having issues now with editing the back side in the UV editor. They are not changing like in your example. My test is enclosed. I didnt realize this was going to be so tricky…
Thanks,

Jon

Thanks for the file, Jon.

I checked, and the rows were not flipped or did you clicked twice (which turns them to their initial state). Each row has to be done by itself, not all at once, (But I’m guessing here, so I stop!)

Here is your file back.
https://www.amazon.com/clouddrive/share/hGJvfF7bq3enVQDXLzsR360mCsHizmr7xS28FmSwZCK

All the best

Thanks, yep no shortcuts here. I sent back and built it again from scratch and now it works. Also with your videos, hard to tell, are you changing the <convert to profile> before you edit the UV mesh? Is there a good tut on the UV mesh, never really paid attention to that little tag before.

Thxs
Jon