The Relationship Between the Three Editing Modes in Cinema 4D
Let’s start by understanding the parametric models in Cinema 4D (C4D). These are the basic shapes included in C4D that you can modify through adjustable parameters. Common parametric models include the cube, cone, cylinder, disk, capsule, and terrain. For instance, consider the cube.
When you convert these parametric objects into editable objects, you gain the ability to edit their points, edges, and faces individually. If you want to select the entire model, you can do this while it remains in the parametric model state.
1. What is a Spline?
A spline is a two-dimensional shape made up of continuous lines without depth; it can be either open or closed, much like the pen tool in Adobe Illustrator. Creating splines is essential for building 3D models. For example, you can draw a distance shape and then define its thickness to generate a 3D box.
Splines in C4D are visually differentiated by color:
Orange: Draw Path
Blue: Parametric spline (these have adjustable parameters—experimenting with each shape’s settings is recommended to better understand their characteristics).
2. Converting Spline Anchor Points
Let’s focus on the brush tool here. Similar to the pen tool in Photoshop, you can hold the left mouse button and drag to create anchor points. When drawing splines with specific control rules, it’s best to work in a two-dimensional view.
Switch to the 2D view by clicking the middle mouse button, then draw a spline from start to finish. The spline will show a color gradient from white to blue, indicating the drawing direction.
The Parent-Child Relationship in C4D
The parent-child relationship is crucial in Cinema 4D!
You can distinguish related tools by color coding: blue tools are flexible and context-dependent; green tools represent the “parent” level and are proactive; purple tools indicate “child” or sibling levels.
For example, if you add a subdivision surface without attaching it to a child object, nothing will appear in the viewport. You must assign a child object to the subdivision surface to see the effect. To do this, select the child object, hold down the ALT key, and click on the parent object to assign the parent. Alternatively, you can drag the child object onto the parent in the Object Manager, as shown below:
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