Afterimage - Speed with extra steps

Hey Slippers!

Every now and then, we like to crack open the cold one… and the dev toolbox. And show you something raw, straight from the craft table. Today’s treat comes courtesy of our technical artist. It’s a feature that makes our fights feel sharper, feel faster, and feel way prettier than you can dream of in your blurry dreams.

It’s called Afterimage.

Say hello to your new spiritual guide - Fairy Godmother - with afterimage effect seen on her wings

What It Is

Motion blur is everywhere in games - lot of times it’s fine… but it happens, it’s a mess. We saw hella memes asking “why”. It smears the screen, it makes you wonder if your glasses need a wipe. But staying sharp doesn’t mean cutting your finger on sharp pixels.

Afterimage doesn’t blur, but leaves echoes.
Snapshots of a character frozen mid-dash, mid-leap - still visible for a split second after they’ve already moved on. It’s not haze, nor a fuzz. More like a crisp ghost, hanging in the air just long enough to prove you’ve said: “gotta go fast.”

Bet you've seen that before, even in older classics like Mega Man or Street Fighter. 

How It Works

Here’s the clever bit for ya. Instead of blurring the whole screen, the game secretly renders the character into a tiny patch of texture with transparent background. These “ghost frames” are saved in a 4×4 atlas, meaning up to 16 echoes can linger before being overwritten.

They don’t last long - by design. Too short to notice the trick, just long enough to feel the speed. And because the frames recycle so quickly, framerate becomes part of the balancing act: the higher it runs, the faster the echoes vanish. If we want a trail to linger longer, we can deliberately slow its framerate down - trading smoothness for persistence.

And because they’re not global, we get to choose what leaves a trail: just a weapon, a cloak, or a pair of wings. That selectivity is important - sometimes you only want a blade’s ghost, sometimes the sweep of a cape, never the whole character at once.

If you flip the camera too fast, you might spot the truth: the afterimage is really a flat 2D cut-out, always facing you. But in motion, it’s seamless. It looks like magic. Whoosh.

Of course, there’s a cost. Each echo eats a slice of memory from the atlas, and we only budgeted for 16 slots per character. It’s a compromise - not infinite ghosts, but just enough to sell the speed without burning VRAM.

Why It Matters

This is one of those systems that’s technical under the hood, but loud on screen. It makes every dash and flourish movement look great without drowning you in haze. It also stands out a tad more than your everyday super epic, cinematic, ultra motion whatnot blur.

That’s our way of leaning into Swords & Slippers’ stylized DNA: built for readable motion, not cinematic fog. So next time Red Hood slices through the air, or Snow White dashes forward - watch for the phantom trace.

That’s Afterimage at work.

So, how do you like the feeling of speed?
And have you already joined our DISCORD? We've reached 3K of legend users there!

Mass Creation Team