For full control over size over lifetime, open the Curves tab.
Colour & Opacity
These are the first and last stops of the colour gradient , add more stops in the Curves tab.
Shape & Blend
Trail effect
Texture Sprite
Picks up when Shape is set to “Sprite / Texture”. Built-ins are generated here , uploads stay on this device.
Emitter Shape
Size × Lifetime
Multiplies the start→end size. Drag points · click empty space to add · drag off or double-click to remove.
Alpha × Lifetime
Multiplies the start→end alpha fade.
Colour Gradient
Click the bar to add a stop · drag stops sideways · double-click a stop to delete (ends are locked).
Your current session auto-saves on this device.
No saved effects yet.
Import
Engine export
Godot 4 downloads a ParticlesMaterial + scene; Godot 3 downloads a ParticleMaterial + Particles2D scene. Unity downloads an editor script , drop it in an Editor folder and use Tools --- JVDesign Studio. Generic JSON is engine-neutral, and Phaser 3 exports a ready emitter config.
Share / Copy
Capture
✨ Particle Designer
Design a particle effect , fire, smoke, sparks, magic , then export it for Godot, Unity or as raw JSON.
Pick a Preset to start from, and click the preview to move the emitter.
Open Params to change speed, gravity, size, colour and shape.
Curves shapes how size and alpha change over each particle's life.
Export gives you a Godot .tres, a Unity importer, JSON, a PNG or a WebM.
