Thanks for the input, MaverickMongoose.

Please add that to your ticket. (I can't do that, sorry)

Yes, mid project, never update if there is no urgent reason.

My best wishes for your project.

Hi kariomart,

The same size wouldn't be an option, as the UV space is normalized to the image. In short, if an image is 1024 x 2048 and the UV setup is that all are covered by it, then the UV space stays in 0-1 normalization but adapts to the image. Which subjectively appears to be a normalization to 2:1, as it is a translation from 2D information towards a 3D object. (Deformers can change the size while not affecting the UV.)

The simples way is to calculate the point where it stops, and cut there, make a selection, and fill the whole UV 0-1 space with the UV, so the selection provides a clear framing. Not simple to explain or suggest that for general use, but here is an example:
https://projectfiles.maxon.net/Cineversity_Forum_Support/2025_PROJECTS_DRS/20250921_CV4_2026_drs_25_TXrc_01.c4d.zip

I am sure some would like to point to Texels. Here I'm not sure if that would work as you need it.
https://help.maxon.net/c4d/2025/en-us/Default.htm#html/Texel_Density.html?Highlight=Texel

What I have done in the example file below:
The height was easy to explore
Then I selected the partial circle (Edge to Spline). With a quick XPresso set up measured the length.

This allowed me to calculate the needed Pixel for the horizontal Length. X = 670x401/203

Since the label would cover the polygons completely, that was the fastest way for me.
Relax the outer UV Polygons and use the Command "Fit UV to Canvas."

Now the new texture (401x1324) wraps around the full outside, while keeping the Label intact.
I colorized the extra space, but that can be just empty.

Example
https://projectfiles.maxon.net/Cineversity_Forum_Support/2025_PROJECTS_DRS/20250921_CV4_2026_drs_25_TXuv_01.zip

Enjoy your Sunday

Thank you very much, MaverickMongoose,

What a great find, and thank you for reporting it. I did not even think about this being different in 2025.3 vs 2026. So I explore this with my file from above:

Can you spot where one render stops and the other starts? Both just run to frame 32, the yellow without caching, the red one is cached first.

The 2025 is on the left, the 20026 is on the right.
I can't spot a significant difference, while each simulate will have some random results in it.

I thought I could add to the report, but I can't reproduce it.
Fingers crossed they find what makes it on your end different; it might show up in other setups more pronounced, and then we will be happy to have had your input, so again, thank you.

Have a great weekend as well.!

You're very welcome, Robert,

Yes, as Jonas showcased it.

Have a great weekend

Thank you for the reply, entry-newspaper.

I have seen it from time to time, no idea what it causes, but since I do not use double-click a lot (I work mostly from a tablet), I drag the files on the icon in the dock. So, I'm not the one with the most experience with double-clicks anymore. Besides, if the file is a fake file, it might open something else (Yes, pure neurotic, based on too much security training that I have to take.

All the best

Hi entry-newspaper,

On a Mac, use the CMD + I to get the information about the file you like to open, then set the application you like to use, and if that is needed for all, use the change all button.

If that is only wanted for a single file, use the Right-Mouse-Click to get the Open With option. If 2026 is not in teh list so far, scroll down and use "Other…". It should be in that list after this first time.

All the best

Thank you Andy,

Sorry, it wasn't discussed. Fingers crossed that it will be integrated next time.

Since I do the QA and Timestamps, etc., for the shows, I will keep an eye on it and update here when it is discussed.

Have a great weekend

Hi comfort-sense,

Thanks for the file.

Boolean might work, but it is often a question of what works best for you or the target. Ideally, there should be no visual difference.

I always avoid the "best practice idea" as it suggests a full stop in exploring other options, and it is an unfortunate label for anything inside of Cinema 4D, as we may never find all possible options. So, lots to explore and find new things (In case you wonder, I find even after 28+ years using C4D new options. In short, it is better to explore and mess around to fill the creative library. So, your question is very appreciated.

The Spline Mask might show some artifacts from time to time; often, a short adjustment is all that is needed to fix it.
However, with Splines, the adjustments later on are not that difficult; adjusting a spline point vs an Object's surface might be an easy answer. But Boole is surely powerful as well.

So, this is an alternative, not better or worse (I hope). Let me know if you have questions. I'm happy to look into it.

Example:
CV4_2026_drs_25_ANsh_01.c4d
The sphere is an extra, just for show...

Enjoy your weekend

Hi David,

Any interaction, whether it is simulation or even light, anything related to size, typically follows real-world size for many years now. Back in the days, it was just units. There are cases where large or small might challenge that idea. Here, the project scale can be useful.
To determine that before is a good idea, as changing the scale later on might not affect all settings.

Besides, if you have a super large model, perhaps explore the idea of Redshift's camera option.
The Camera Space Render.
https://help.maxon.net/c4d/2026/en-us/Default.htm#html/VPRSRENDERER-REDSHIFT_RENDERER_TAB_GLOBALS.html#REDSHIFT_RENDERER_RENDER_IN_CAMERA_SPACE

While the precision in the old days was a little bit lower, the rule was three digits before and after the period (or comma - depending on your localization) was the guidance to go with. Today, it is more of an idea to see if the scale of the Project might be in need of a change.
Project scale:
https://help.maxon.net/c4d/2026/en-us/Default.htm#html/DDOC-DOCUMENT_GROUP_PROJECTSETTINGS.html

My best wishes for your work.

Hi MaverickMongoose,

This is an interesting question, and besides a higher
Attribute Manager> Mode> Scene> Simulation> Liquids> Surface Tension Iteration
I have found no option to change that, whereby I would suggest this option, as it changes a lot of the shape.

From my perspective, Fluid Particles are not trying to collide and bounce off each other; it is a more complex interaction among all of them, which leads to an force summary while also showing viscosity as a result. Simplified, the particles surrounded by others create a balance among all of those "relations" (or forces). With only a single layer, the border's balance is not given, and border particles tend to come closer here. With many layers of particles, this force is surrounding the border particles more. Since this creates for the Fluid Mesh a nicer edge to work with, I suppose very little has been explored to define it otherwise. Hence, my suggestion is to keep it smaller.

Your example was a black heart, and following it made this a nearly invisible part. I understand that you either need the light in that way, or have placed it to put the effect into the forefront of the visuals.

I have nothing that would remedy it other than to avoid putting the spheres so clearly readable. If that is needed, you might try to use Ridid Body options and spheres.

Cheers