Energy Refill: An energy refill: yellow lightning zaps into a dark bolt icon and motes rush in while it fills from the bottom up with a glowing front, then it flashes full with a ring and glitter.

Energy Refill

An energy refill: yellow lightning zaps into a dark bolt icon and motes rush in while it fills from the bottom up with a glowing front, then it flashes full with a ring and glitter. Plays once for energy and stamina refills.

Energy Refill is an HD effect that loops seamlessly every 2.4 seconds, drawn on a 512 by 512 canvas. It is built from 5 particle emitters, 5 lightning bolts and 1 glowing stroke. Most layers blend additively, so it glows on dark backgrounds.

Colour

Recolours the preview and the free downloads.

Free download with a transparent background, cropped to the effect, 72 frames at 30 fps. Use it in commercial games, no credit needed.

Licence: use it in any project, including paid commercial games such as a game sold on Steam. There is no per-project licence to buy and no credit needed. Terms.

Roblox: the download is a flipbook for a ParticleEmitter. Set FlipbookLayout to Grid8x8, FlipbookMode to OneShot and Lifetime to 2.4, then emit one particle per cycle. Roblox setup.

REMIX WITH AI

Try:

Left empty, it just opens in the agent, free. Each change is one AI build, and you start with free builds.

Engine data for Unity, Godot, GameMaker and Aseprite comes with a plan: open it in the studio.

OPEN IN THE STUDIO

Change the colours, timing or size, or export for Unity, Godot 4, GameMaker, Phaser, PixiJS and Aseprite.

Try variations: new colours, motion and shapes of this effect, free in the studio.

FRAME BY FRAME

8 evenly spaced moments across the 2.4 s loop.

Energy Refill at 8 moments, from 0 s to 2.1 s

HOW IT'S MADE

Energy Refill gets its crackle from 5 lightning bolts (a new jagged path on every strike), backed by 5 particle emitters. Techniques worth a look: glowing strokes traced along shapes, magnets, sprite modules, a sprite dissolve and post filters (bloom).

It loops seamlessly every 2.4 s, and 3 of its layers fire in bursts, so it pulses instead of flowing evenly. Start times are staggered from 0 s to 2 s, so the layers arrive one after another. To recolour the lightning, select "Zap 1" and change Core and Glow; Strike every sets how often it fires. The colour swatches by the downloads recolour every layer at once.

Layers, in draw order

  1. Halosprite / additiveA placed glow. Extras: keyframed motion.
  2. Charge Motesparticles / additiveA stream of streaks from a ring, its rate keyframed over the loop. They are swallowed by a magnet at its centre. Colours range between white and gold.
  3. Zap 1, Zap 3, Zap 5lightning / additiveA lightning bolt striking sideways every 0.18 s. It forks into branches. Each strike lands somewhere new.
  4. Zap 2lightning / additiveA lightning bolt striking downward every 0.18 s. It forks into branches. Each strike lands somewhere new.
  5. Zap 4lightning / additiveA lightning bolt striking upward every 0.18 s. It forks into branches. Each strike lands somewhere new.
  6. Empty BoltspriteA placed image.
  7. Full BoltspriteA placed image. Extras: bounce, shine sweep, glow and dissolve.
  8. Fill Sparksparticles / additiveA stream of soft glows from the sprite's dissolving edge, its rate keyframed over the loop. They shrink as they age and slow down with drag. Colours range between white and gold.
  9. Full Flashparticles / additiveA single particle at 1.25 s. It grows as it ages. Colour: pale gold.
  10. Full Ringstroke / additiveA glowing line traced along a circle.

2 more layers are in the studio.

DETAILS

Length
2.4 seconds, seamless loop
Canvas
512 x 512, HD
Layers
5 emitters, 5 lightning bolts and 1 glowing stroke
Blend
Mostly additive (glows)
Colours
whitegoldpale gold
Sprites
Kenney Particle Pack by Kenney (CC0)
Tags
energy, refill, lightning, bolt, stamina, idle, mobile, recharge

USING IT IN YOUR GAME

Phaser, PixiJS
The PNG sheet is a plain grid of frames that both can slice. A TexturePacker JSON atlas comes with a plan, from the studio.
Unity
Import the PNG sheet as a Sprite with Mode set to Multiple and slice it, or open the effect in the studio for a ready-made grid.
Godot 4, GameMaker, Aseprite
Open it in the studio and pick your engine in Export: with a plan, it writes the files that engine imports.
Web and chat
The GIF plays anywhere; the APNG keeps soft edges on any background.
Blend mode
This effect is made of light. For the same glow in your game, draw the sprite with additive blending, or export it on black from the studio for additive shaders.

Step by step: Unity, Godot 4, Roblox, GameMaker, Phaser and PixiJS, Aseprite, Web games (live runtime). Drawn with additive blending: see glow effects without a black box.

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