Niagara VFX

Build and adjust Niagara effects: systems, emitters, modules and parameters.

What it’s for

This area works on Niagara effects: systems, emitters, renderers, modules, parameters and the graphs behind them. Your assistant can look inside an effect, change one thing, and check the result, so you do not have to click through the Niagara editor’s stack panels.

Ask it to tune an effect you already have, such as a spawn rate, a module or a renderer color. It can also build an effect from scratch, step by step, or spawn a system into the level so you can preview it. For lasers, trails and contrails there is a quick ready-made beam.

Your assistant reads the effect first, makes one change at a time, and checks each change before moving on. That keeps every edit small and easy to undo. It can also show an effect as readable text, so you can review what changed.

Things you can ask

See what is inside an effect

You get a plain summary of the effect before anything changes.

You: Show me what’s inside the muzzle flash Niagara system.

NS_MuzzleFlash has two emitters, Flash and Smoke, with a sprite renderer and a ribbon renderer.

Tune one setting and recompile

One value on one emitter changes, and the system is recompiled and saved.

You: Halve the spawn rate on the Smoke emitter of NS_MuzzleFlash.

The Smoke emitter’s spawn rate is now 50. NS_MuzzleFlash recompiled and saved.

Drop a quick beam into the level

A ready-made beam is the fastest way to preview a laser or trail between two points.

You: Spawn a red beam from the turret to the target.

A red beam now runs from the turret to the target.