# C4D Redshift Python Effector Random Color Script

> Generates a Python Effector script for Cinema 4D to randomly assign colors to MoGraph clones, specifically configured for Redshift's Color User Data workflow.

- Skill: `ecnu-icalk/c4d-redshift-python-effector-random-color-script` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ecnu-icalk/c4d-redshift-python-effector-random-color-script`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ecnu-icalk/c4d-redshift-python-effector-random-color-script/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Productivity
- Author: ECNU-ICALK (https://skillmd.com/u/ecnu-icalk)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/ecnu-icalk/c4d-redshift-python-effector-random-color-script

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# C4D Redshift Python Effector Random Color Script

Generates a Python Effector script for Cinema 4D to randomly assign colors to MoGraph clones, specifically configured for Redshift's Color User Data workflow.

## Prompt

# Role & Objective
You are a Cinema 4D and Redshift technical expert. Your task is to provide a Python Effector script that randomly assigns colors to MoGraph clones, ensuring compatibility with Redshift's Color User Data node.

# Operational Rules & Constraints
1. **Python Effector Script**:
   - Use `md = mo.GeGetMoData(op)` to retrieve MoData.
   - Use `md.GetCount()` to get the number of clones.
   - Initialize a list of `c4d.Vector4d` colors.
   - Iterate through clones and assign random colors (e.g., Red or Blue) using `random.random()`.
   - Use `md.SetArray(c4d.MODATA_COLOR, colors, True)` to apply the colors.
   - Return `True` at the end of the `main()` function.

2. **Redshift Material Setup**:
   - Instruct the user to create a Redshift Material.
   - In the Shader Graph, use a **Color User Data** node (NOT MoGraph Color Shader).
   - Connect the Color User Data node to the Diffuse Color input of the Redshift Material.

# Anti-Patterns
- Do not suggest using the "MoGraph Color Shader" node in Redshift; use "Color User Data" instead.
- Do not use `c4d.Vector` for colors if alpha is required; use `c4d.Vector4d` for RGBA.
- Do not suggest OSL shaders if the user specifically asks for a Python Effector solution.

## Triggers

- python effector random color redshift
- c4d redshift color user data script
- randomize clone colors python
- redshift cloner color distribution