Lerpa
Blender → Web · Vector Animation
One file · renders anywhere · animates on cue

Conjure a 3D move into a single SVG.

Bake any Blender camera move into one .svg. Put it in an <img> and it renders like a picture. Load the player and the same file animates — sharp at every zoom, recoloured on the fly, and still clickable while it moves.

Measured — 1,654-element scene, 12 frames, 1280×720
One clip259 KBgzipped
Frame cost4–11 msflat 640p → 1080p
Runtime~6 KBshared, no deps
Fallback100%renders without JS

Cost follows element count, not resolution — the work is path setup, not filling pixels. A 4K panel costs what a thumbnail costs.

What it's for

Any scene you'd otherwise export as video.

Product reveals

Spin, open, explode a model — then hand off to a still that stays crisp on any display and matches your palette exactly.

Interface transitions

Move between two views of the same object. The animation ends on a frame computed from the same data as the state you cut to, so the swap is seamless.

Diagrams that respond

Parts stay real objects mid-motion. Recolour a group when data changes, or hit-test a click while the camera is still moving.

Anywhere video is too heavy

No pixelation when scaled, no re-encode to change a colour, no second file for the poster image.

The trick

All the 3D happens once, before the page ever loads.

Hidden-line removal and occlusion order are worked out at bake time and checked by an audit that reports violations, cycle breaks and order flips. What ships is sparse 2D keyframes — no camera, no projection, no depth buffer at runtime.

FIRST

Bake

Choose meshes and a camera move. The add-on projects every vertex, removes what's hidden, resolves paint order and thins keyframes to a pixel tolerance you set.

THEN

One file

Animation and both resting states travel inside a real SVG. No new extension, no MIME setup, no build plugin, no broken image if JavaScript never runs.

FINALLY

Summon

A custom element, identical in Vue, Svelte, Angular, React and plain HTML. Play, reverse, recolour, hit-test, cut to the static state.

<script type="module" src="https://unpkg.com/lerpa-player"></script>

<lerpa-player src="/anim/scene.svg" autoplay loop></lerpa-player>
Library · free, CC0

Start with a spell already written.

Ready-made transitions you can drop straight into a page with the free runtime — no Blender, no bake, no licence to read. Released under CC0: use them anywhere, commercially, without attribution. When you need one of your own model, that's what the add-on is for.

<lerpa-player src="/library/orbit-solid.svg" autoplay loop></lerpa-player>

Cards marked baking are queued. Previews are drawn with the same method the exporter uses — project, sort by depth, fill then stroke — so what you see is what the file will do.

Reach

The web gets the spell. Everywhere else gets Lottie.

There is one runtime and it is the web one. Every other platform is served by exporting Lottie straight from the add-on, so iOS, Android, React Native and Flutter run on their own mature players — nothing extra for you to install, and nothing extra for us to keep in step.

TargetExport
Web Per-frame occlusion, live recolouring and hit-testing mid-playback — and the file still renders in a plain <img> with no player at all. .svg
iOS · Android · React Native · Flutter The standard Lottie players, within the one limit noted below. .lottie.json

Where the Lottie path is lossy: layer order in Lottie is static. Depth collapses to a fixed stack sorted by average depth, so occlusion cannot flip mid-animation. For a modest camera move that is invisible; for a full orbit, where the far side becomes the near side, it is not. Interface transitions sit well inside the safe zone; a product turntable does not — and that gap is the whole reason the native format exists.

Tiers

The player is free. The pipeline is what you buy.

TierPrice
Player The web runtime, open source under AGPL-3.0. Free for open-source work, personal projects and evaluation. Free npm install
Studio The Blender add-on. Perpetual licence, a year of updates. For anyone making their own animations. $59 once Buy
Delivered Send a model and a shot list, get back tuned, themed animations ready to drop in. from $2,500 Enquire

Why the split: the add-on links against Blender's Python API, so it is GPL and always will be — a copy you buy is yours to redistribute. The web player is separate code, and its AGPL terms are the ones a closed-source product cannot meet. That is what the commercial licence buys out.