Individual skill

niagara-emitters

Niagara emitter color/curve authoring (tint, hue-shift, ColorFromCurve keys), rapid-iteration parameter tuning, and Custom-HLSL scratch-pad authoring (NiagaraEmitterService + NiagaraScratchPadService). Module/renderer CRUD is owned by the engine NiagaraToolsets. Use when the user asks to recolor or hue-shift particles, edit color curves, tune emitter params, or build a scratch-pad/Custom HLSL module. For system-level lifecycle, load niagara-systems.

Content/Skills/niagara-emitters/SKILL.md

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Scanner rules are current: Yes
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Observed behavior: Local scripts
Last checked: Nov 10, 2026

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Repository stars (not skill ratings): 824
Repository last updated: Nov 10, 2026
License: MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

ai Repository topic
gamedev Repository topic
mcp Repository topic
mcp-server Repository topic
ue5 Repository topic
unreal-engine Repository topic
vibe-coding Repository topic
ai-tools Repository topic
automation Repository topic
blueprint Repository topic
engineering Derived category

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SKILL.mdcore · 8,220 bytes
SKILL.mdcore · 8,220 bytes
SKILL.mdcore · 8,220 bytes
color.mddoc · 9,308 bytes
reference.mddoc · 3,937 bytes
scratch-pad.mddoc · 11,107 bytes
scripts/build_emitter.txtdoc · 1,933 bytes
scripts/recolor_emitter.txtdoc · 1,081 bytes

Read excerpt


> 🧠 **Brains complement:** IF an `unreal-engine-skills-manager` tool (external MCP) exists in this session, call it with `{action: "load", skill: "niagara-vfx"}` for UE domain knowledge on this topic — correct APIs, architecture, best practices — and treat it as the rubric for any review / "best practices" question. If no such tool is available (e.g. running under Claude Code or Codex without that MCP), skip this line entirely and proceed with this skill alone — do NOT attempt the call.

## Niagara Emitters Skill

> **Architecture (read first):** VibeUE extends Unreal's native MCP endpoint. Emitter **module and
> renderer CRUD** (add/remove/enable/reorder modules, add/remove renderers, set module/renderer
> inputs, search module scripts) are owned by the **engine** `NiagaraToolsets.*` toolsets, called
> through `call_tool`. VibeUE's `NiagaraEmitterService` was trimmed to the **color/curve authoring**
> the engine doesn't provide, plus a rapid-iteration-parameter reader.

**VibeUE `NiagaraEmitterService` (this skill) keeps ONLY color/curve authoring + a param reader:**
- `set_color_tint` — add/set a ScaleColor tint (handles ColorFromCurve automatically)
- `get_color_curve_keys` / `set_color_curve_keys` — read/replace ColorFromCurve keyframes
- `shift_color_hue` — hue-rotate a ColorFromCurve while preserving detail (best for recolors)