Hi Dr. Sassi,
Thanks so much for the suggestions and project. I'm picking it apart, trying to understand everything and have a couple questions.

• Why is the Plane inside a Connect object? I see that the Linear Fields don't work when it's turned off, but what is the Connect object's purpose?
• I see the function of both the Linear Fields, but I'm trying to understand the setup. The Vertex Map only has the Linear Field_Vertex (the gradient one) in its Fields and the Correction has the Linear FieldCorrection (the animated one) and Vertex Map in its Fields. Is the reason that the Vertex Map is defined only by the gradient of values, while the Correction Deformer is defined by both?

There's several new things I learned your response I'm trying to understand, but I also came up with a different solution that's way more time consuming but got me a decent result:

• Bake out the pillow case animation
• Use Edge to Spline on the opening of the pillow case (where the zipper will be) every 4 frames
• Use Pose Morph to animate between the Splines
• Use a Cloner Object for the zipper teeth and use the animating Spline as its path

Thanks again for the help!

I have a cloth animation of a pillow case that has the inner pillow being removed from the case. I'm trying to add a zipper, made up of a cloner and spline, to the seam where the pillow emerges. When I merge the zipper geometry to the pillow case, the zipper becomes distorted by the cloth physics.

Is there a way to attach the zipper so that it retains its geometry, while its spline follows the animating edge of the cloth?

Cloner bend problem.c4d

I have cloner objects cloned to the vertices of a spline. I'm trying to animate a Bend modifier on the spline, but when the Bend Strength goes above 12 degrees, the clones flip 90 degrees. How can I prevent this?

@Dr-Sassi Thank you so much for everything. It's taught me new and valuable techniques I'll continue to use. One last question: does the organization of the topology (straight rows and columns) or density matter when it comes to RS displacement, or is it just a matter of eliminating n-gons?

@Dr-Sassi Hi Dr. Sassi,
Thank you so much for this, it's exactly what I was looking for. My technique for the cutout was inspired by a previous post you helped me with.

And yes, I'm very interested to know how you remodeled everything, particularly the corners. As far as rendering, do triangles need to be avoided as well?

I am having difficulty adding displacement to a mesh I created from an extruded spline. I have an RS material I've created that has a displacement map. I've turned on Geometry Override, Tessellation, and Displacement.

Turning on Tessellation and Displacement gives me distorted geometry, as seen on the left in the screenshot.

Another approach I've tried is to use Volume Builder/Mesher/Remesher to get better geometry, but I could never get a suitable result. The edges were always uneven.

Are there any other options to try or is there a better approach altogether?

Here is the project:
https://drive.google.com/drive/folders/1B_vW1mxtGR6jTfqV12RZPsBq1yC8ErbW?usp=sharing

I want to adjust this spline handle to flat and not angled, so the line between this point and the next is perfectly straight along the x axis. I thought the shortcut was holding shift while adjusting but it doesn't work. I've tried every combination of Shift, Alt, and Ctrl, but nothing makes the handle snap to zero angle. How do I do this?

Hi Dr. Sassi,
Thanks as always for the help! Is this workaround what needs to be done whenever rendering motion blur with an alpha?

egg_test_v002.c4d
When I turn on Vector Motion Blur, my render does not have a fully transparent alpha. When I turn it off, this issue goes away. How can I render it with motion blur but without this problem? I've also tried rendering with straight alpha turned on and off.

Thank you so much for your help on this problem and the two others you answered today! I'll be sure to check out this project and the others.