Hi Dr. Sassi,

Actually noting I try stops the black lines.

Attached are some screen captures. The first is what it looks like imported into Photoshop from Cinema4D 2025. See the black boarder?
Second screen capture is after I aggressively increased the mask layer in Photoshop.
Third screen capture shows even after doing all this black line is still there and I also noticed the texture around polygons edges are distorted (zoom in on the hair stubble on the edges).

I haven't been able to find much on the internet on using Body Paint for this kind of task and I'm starting to wonder if it's even used for this kind of task, plus Maxon hasn't made any changes to Body Paint that I can see from R17, which makes me think not many users are using the tool for this kind of task.

Before I suggest we drop this issue, is there a way I can edit the projection layer in Cinema4D as a flat image and erase the edges before applying it to the main texture?

Bruce.

Hi Dr. Sassi,
Thanks for spending the time putting the video together. Below is comments on performing the process to your video:

1. On my Cinema4D 2025 the "Freeze 3D View" button is by default already shown.

2. The process works exactly the same on both Cinema4D 2025 and Cinema4D R21.

3. Both Cinema4D versions export a Photoshop file where the layer mask allows a single pixel black line the surrounds the entire edge that gets applied when "Merging" the file back in Body Paint. This
   seams odd that I would have to manual edit the Photoshop file to get rid if this black boarder line.

4. Your comment "There is a difference in Preferences> BodyPaint between R21 and 2025.3, please check this". I see no difference in the preference options between version 2025 and R21. In addition the Maxon online documentation for both versions doesn't even cover the Body Paint preferences for some reason even so it's shown on Preferences overview. So I don't know what is new in version 2025 that you are seeing.

Over all I can make this process work but I would like to know if there is a way to stop this black boarder being created as I will have to spend a lot of time making many "freeze" images to work around a torso seams.

Thanks again,
Bruce

Hi Dr. Sassi,

Thanks for the help and no need to reply. I just tied using Cinema4D 26 with the idea to use it just for the texture painting, but found Body Paint works exactly the same as in version R21. The object I'm trying to work on is a human torso and the UV map is unwrapped perfectly "flat" and the seams go down the middle of the back and the back of the human head. This mean the edges of seams on the 8K resolution texture files are on opposite sides when loaded in a image editing application such as Photoshop so there is no practical means to "blend" part if the image that is on the right side of the image to the left side, and even more complex around fingers and arms. For this kind of editing in Body Paint it seams the best mode to use would be 3D Paint mode, but my tests looks like the brushes don't use the UV map to know that the seam is simply two polygons of the same size are connected together.

I just noticed your edited comment about Body Paint Preferences, I will look at that and see what that's about.

Bruce.

Hi Dr. Sassi,
I originally tried the project mode, but the problem is the projection layer is transparent so tools like smear don't do anything because the original texture I'm trying to clean up is part of the material. I don't see anyway to make a selection of the original view of the material and copy and paste it to the projection layer so it has some pixels to modify. Does that make sense?

Bruce.

I know Cinema4D-21 is no longer supported but I'm hoping someone will know if the issue is a limitation or some kind of setting issue.

In Body Paint (R21) where an object is already UV mapped and has an exiting texture. When in 3D paint mode, such as simply using the brush tool, when I cross the texture seam it creates a clear overlapping looking line. In addition, when I use the smear tool it won't smear across the seam so I can't blend the texture to clean-up the seams. I also noticed the brushes round cursor gets clipped when crossing over the seam.

Is this a limitation of R21, and if so, if I edit my textures using Cinema4D 2025-2026 does it have the same issue?

Hi Dr. Sassi,

I finally found it, and it did what I needed! Thanks.

Hi Dr. Sassi,
Sorry, but I can’t figure out how you got to that viewport attribute panel in the first place. I searched the online documentation for “Deformed Editing“ and yet to find how to get panel where that check box is.

Bruce.

Hi Dr. Sassi,
I must have a screw lose. I can't find how you get to "Attribute Manager>Mode>View Settings> Deformed Editing" (in R21).
I couldn't figure out how to attach a file, and I can't get a c4d file smaller than 1mb. I try describing a simpler example. I have rigged human head, and I move the mouth jaw joint so the mouth is open so I can make a polygon selection inside the mouth. When I click the polygon mode button, and the head goes back to the mouth closed which is the rigging pose, and would do if I turned off the skin tag.

Bruce,

It seems I've done this before, but I can find it in the documentation or forums.

Using R21, I have a rigged weighted character with morphs. Sometimes, such as when working on textures in the UV Editor, I want to to see and select polygons in the character's current pose. But every time I go into Polygon, Point, or Edge mode, the character goes into the initial rig pose.

Isn't there a way to make Cinema4D not go into the initial pose and just stay in the same pose it was in Model mode?

Bruce.

Thanks Dr. Sassi, that works Great!