Color User Data

Color User Data is a custom attribute system in Cinema 4D that lets you create, store, and use color-based data directly on objects. This data becomes accessible in fields, shaders, and XPresso, enabling flexible control for shaders, MoGraph, and granular object manipulation without coding.

What It Is

• User Data colors: RGB fields added to objects allow artists to define custom values.
• Integrates into shaders, variation setups, MoGraph, and XPresso.
• Enables per-object distinctions like randomized color, texture variation, or control flags.

How It Works

1. Add User Data: Right-click an object, choose User Data > Add User Data, select color type, and create a color picker field.
2. Populate Attributes: Assign unique colors to each object manually or via MoGraph/randomizer.
3. Shader & XPresso Integration:
   • In the Material field (e.g., Color, Roughness), drag a User Data node and select your parameter.
   • Use in XPresso or Simple Nodes to control value-driven behavior like visibility, scale, or transformation.

Use Cases

• Material variation: Drive color, reflection, or bump intensity based on object color picker.
• Procedural effects: Control explosion timing, clone scale, or emitter strength through shader-driven color data.
• Debug and control: Store and view custom flags—e.g., render layers, visibility toggles, or group IDs—as color-coded metadata.

Benefits

• No reliance on UVs or textures for control data
• Visual and straightforward to assign and edit
• Works with Redshift, standard Cinema 4D materials, and node systems
• Enables non-destructive, animator-friendly variation workflows

Alternative Workflow – MoGraph Integration

• Use MoGraph Color Shader with Color User Data to automatically assign color values in multi-clone setups.
• Feed object color into shaders for randomization or control over cloned object variations.

Read more in the manual.

Video Credit: Greyscalegorilla
Description: This video demonstrates the ultimate guide to random color clones in Cinema 4D Redshift, including how to use Color User Data in practical shading workflows.