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Placing the texture in the right way
Posted: 09 December 2017 06:50 PM   [ Ignore ]  
Total Posts:  38
Joined  2016-04-18

Dear reader,

I have made an animation of the calendar I have made. On the front of the pages I placed the artwork of each month.
When I see the render (image 01) the texture is not in the right way when the page is faling down. When the page is stoped moving we see the right placement of the texture (image 02).
Can you tell me what I do wrong and how I get the image rendered in the right way on the moving page? The picture has to bend as well with the page…

Thanks in advance for your answer.

Kind Regards,
Michiel van der Velden
The Netherlands

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Posted: 09 December 2017 07:40 PM   [ Ignore ]   [ # 1 ]  
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Hi Michiel,

It looks like a Flat projection. A UV(W) would be nicer.

Can you share your set up, no images needed, just the scene file. If you like to keep it non-public, let me know, I will set up an upload link then.

All the best

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Posted: 09 December 2017 08:29 PM   [ Ignore ]   [ # 2 ]  
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P.S.:

Here are some files and two clips (each a minute long), demoing a fix of the problem.

If that isn’t helping, I’m happy to check your file.

Clip and scene file:

https://www.amazon.com/clouddrive/share/Yh5GVALHhYLH6uCm7xeW3xZ5EPBQAaffaGeakZUEtM4

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Dr. Sassi V. Sassmannshausen Ph.D.
Cinema 4D Mentor since 2004
Maxon Master Trainer, VES, DCS

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Posted: 10 December 2017 10:50 AM   [ Ignore ]   [ # 3 ]  
Total Posts:  38
Joined  2016-04-18

Hello Dr. Sassi,

Thanks for your answer.
I tried to place a image on a plane and it worked out fine.
The papers of my calendar however are made from a cube and have a thickness. For me it’s not clear how to get the image right on the paper with UV mapping.
I made a selection for the image on the front.

Attached a file of my artwork

Can you also tell me how to rotate the image in UVW mapping. When I place an image it’s turned up side down.

Kind regards,
Michiel

File Attachments
Kalender_sample.c4d.zip  (File Size: 1760KB - Downloads: 102)
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Posted: 10 December 2017 03:10 PM   [ Ignore ]   [ # 4 ]  
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You’re very welcome, Michiel.

Here is another one minute clip, using your file and showcasing the one option to rotate the texture (note that I start rotating and then hold the shift key down, snap!). Your adjusted file is linked as well.

Files:
https://www.amazon.com/clouddrive/share/rknN0agv7CRSYpQD1awedT4hri7bsbsPFKsnwz4et5R

The link contains as well your scene file. Note that you could also, use a Layer shader, and there go to Effect>Transform, to get an option to rotate. Personally, I tend to rotate it in Photoshop and have it directly as I needed it, if the UV(W) is already set.

Nearly every project can be turned into UV(W) projection.  UV(W) stands for a similar space than XYZ, except it is “normalized, from 0-1, so the image resolution will not matter, e.g., if you exchange it for a lower or higher resolution. The W is for shaders, the Z value, but for images the texture space is just a flat square. UV(W) has a set of “polygons” as the model has, and each of those act like a picture frame for the given polygon. The part of the image get filled (stretched) with it. So, have an eye of the needed mesh resolution, it can be easily too high or too low. Since it adds data to the scene, the processing time changes.

To go from an projection (like a slide projector) to a more sticker/label, UV(W), texture method, it is the same if it is cube or flat or spherical: the only thing that matters, in the moment you create the UV(W) tag, the projection must be proper, as it stays that way then in UV(W) settings.

UV(W) is typically a little stopper in each hands on course, but when it is clear, it is a great tool to work with, especially if you can familiarize yourself with the UV Editor.

All the best

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Dr. Sassi V. Sassmannshausen Ph.D.
Cinema 4D Mentor since 2004
Maxon Master Trainer, VES, DCS

Photography For C4D Artists: 200 Free Tutorials.
https://www.youtube.com/user/DrSassiLA/playlists

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Posted: 16 December 2017 08:15 AM   [ Ignore ]   [ # 5 ]  
Total Posts:  38
Joined  2016-04-18

Thank you for your answer. It worked out very well.

Can you also tell me were I can see the length of a helix?
I drew one and want to know the exact length of it.

Thanks in advance.
Michiel van der Velden

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Posted: 16 December 2017 05:44 PM   [ Ignore ]   [ # 6 ]  
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You’re very welcome, Michiel.

If the helix is a spline, then please have a look at the file below. Wherever you drag the XPresso Tag to a single segment spline object, the name will change to the length. You can store the Xpresso tag in the Object Manger>>File>Save Tag Preset…, from there you can get always a new and fresh copy.

Scene file:
https://www.amazon.com/clouddrive/share/zhsBPHz4gsrEVVcaipXOyJqtejkSDV2GRm4aCxCsRZt

My best wishes for your project

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Dr. Sassi V. Sassmannshausen Ph.D.
Cinema 4D Mentor since 2004
Maxon Master Trainer, VES, DCS

Photography For C4D Artists: 200 Free Tutorials.
https://www.youtube.com/user/DrSassiLA/playlists

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