Shine & Glint for Aseprite

Coins, gems, keys, icons and pickups feel alive when they glint. Shine & Glint generates that loop from the sprite you already drew, using only its own pixels: a highlight band that sweeps across the drawing (clipped to your opaque pixels, never wrapping) and seeded sparkle glints, tagged fx and ready to export.

• Shine sweep: six angles, band width 1-32 px, 2-48 frames, optional pause (hold) before the loop restarts
• Sparkle glints: seeded (same seed, same result), placed on the brightest pixels at least 3 px apart, or at spots you list; 4-frame life (dot, plus, plus, dot), painted only on opaque pixels
• Highlight colour: default the lightest colour in your sprite, or pick one (indexed sprites snap to the nearest palette entry)
• The first frame of the tag is your source, so it loops cleanly; the transparency mask is identical in every frame and semi-transparent pixels keep their alpha
• Active layer or all visible layers; one Ctrl+Z undoes everything; RGB, indexed and grayscale sprites, Aseprite 1.3+

Tested in real Aseprite 1.3.18 (headless) on RGB, indexed and grayscale sprites, odd and even sizes, fully opaque and semi-transparent sprites and multi-layer sprites: deterministic output, only the colours already in your sprite (plus your picked highlight), one undo step.

Honest note: this bakes the effect into frames for hard-edged pixel art; if your engine already does shine shaders you only need it for the pixel-style look. A sprite whose only colour is the highlight colour produces nothing (you are asked to pick another). Commercial use of the resulting artwork is allowed; no credit needed.

Try the free Lite version first: Shine & Glint Lite.

More Aseprite tools by the same author: Parallax Loop Studio, Appear & Vanish FX, Hit Reaction Kit, Idle Motion Maker, Smear & Squash Studio, Selective Outline Studio, Pixel Sky & Cloud Generator.

Disclosure: the code was written with an AI coding assistant; the effects are plain pixel maths, no image AI.