Cinema 4D

How to Merge Polygons in Cinema 4D?

Understanding Polygon Merging in Cinema 4D

Merging polygons in Cinema 4D is a fundamental skill that can enhance your 3D modeling workflow. This technique allows for the combination of multiple polygonal objects into a single unified form, enabling smoother surfaces and more complex geometries. Here’s a step-by-step guide to help you merge polygons efficiently.

Step 1: Select Your Objects

Begin by opening your project in Cinema 4D. Use the Selection tool to click and drag around the objects you want to merge. Alternatively, you can hold down the Shift key and click each object individually to add it to your selection. Ensure that all necessary polygons are visible in your viewport for selection.

Step 2: Grouping the Selected Objects

If you are working with multiple objects, it can be useful to first group them. With your objects selected, go to the top menu and choose "Objects" followed by "Group Objects" or simply press the shortcut key Alt + G. This action will create a Null object that holds all selected items together, making it easier to manage them before merging.

Step 3: Enter the Edit Mode

To merge polygons, you need to enter Edit Mode. Select your grouped object, and then navigate to the "Object" menu and choose "Edit" > "Edit Mode". This switches your interface to allow direct manipulation of the polygons.

Step 4: Merge the Polygons

With the polygonal mesh selected, access the "Mesh" menu at the top of the interface. From there, scroll to "Commands" and select "Connect Objects + Delete". This will merge all the selected polygons into a single object and remove any intermediate nulls.

If you want to preserve your original objects while merging, consider using "Connect Objects" without the delete option. This keeps your original objects intact for any future adjustments.

Step 5: Merge Points

After merging the polygons, you may find some overlapping points or vertices. To resolve this, activate the Point Selection mode. From the “Mesh” menu, select “Align” followed by “Merge Points.” This will combine all coincident points into a single vertex, creating a clean geometry.

Step 6: Cleaning Up the Geometry

Finally, it’s important to check for any artifacts or inconsistencies in your new mesh. You can utilize the “Polygon” selection tool to inspect any problematic areas, and employ operations such as the "Select Non-Quads" or "Optimize" feature to clean the geometry and ensure that it is manifold.

Frequently Asked Questions

1. What are the benefits of merging polygons in Cinema 4D?
Merging polygons creates a single, cohesive object that simplifies modeling. It helps eliminate unnecessary complexity, reduces the number of polygons, and improves the performance of your scene.

2. Can I merge different types of objects?
Yes, you can merge different polygonal objects, provided they aren’t Intersecting. Merging non-intersecting objects allows for the creation of more complex unified shapes.

3. Is there an undo option if I make a mistake?
Definitely. Cinema 4D has an undo function that can be accessed by pressing Ctrl + Z (Windows) or Cmd + Z (Mac). This allows you to revert any unwanted changes you make while merging polygons.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.