Early-stage startup building SlimeFX · Launched in 2026
SlimeFX is a procedural VFX tool for game artists. Build effects as editable node graphs, export to Godot today, and work toward describing an effect in plain language and refining the graph Claude drafts. Built by Myth Motion, an eight-person VFX team turning its own workflow problems into an artist-controlled tool.
Why now We see an opportunity to bring conversational AI into procedural VFX authoring, while keeping the graph editable and the artist in control.
Clickable early prototype.
A workflow problem our eight-person VFX team knows firsthand. SlimeFX separates effect authoring from the engine you ship on.
PLANNED CLAUDE INTEGRATION
SlimeFX is in private development. This is the workflow we're building, not a claim that every feature is shipping. See current capability status →
Our flagship product
SlimeFX is a standalone C++20 procedural VFX tool in private development. We're bringing spline-based geometry and GPU procedural textures into an artist-controlled desktop workflow.
Our development focus is non-destructive geometry, spline sweeps, and procedural textures for game effects.
The vision is editable effects: curves, nodes, and parameters that artists can refine, rather than a finished image or video.
Godot export is demonstrated in the test scenes below. Unreal Engine and Unity are next on the roadmap.
Claude-assisted authoring is designed to turn an effect description into an editable node graph, then refine it through conversation. Status is tracked in the table below.
A clickable early prototype. Some controls are not wired up yet.
AI integration
SlimeFX is designed around a simple bet: artists should direct, not wire. We are building Claude integration so a VFX artist can describe an effect in plain language and get a procedural graph to refine - with tool calling and visual-reference analysis keeping the artist in control.
The artist describes an effect in plain language.
A procedural node graph comes back as a starting point.
The artist edits nodes and parameters, with tool calling and visual-reference analysis in support.
Architecture · design
Claude never draws pixels. It edits the same node graph an artist would, through a small set of typed tool calls, so everything it produces stays inspectable and editable.
{
"effect": "shield_hit",
"nodes": [
{ "id": "ring", "type": "spline_sweep", "params": { "radius": 1.2, "segments": 64 } },
{ "id": "ripple", "type": "noise_texture", "params": { "scale": 4.0, "speed": 0.8 } },
{ "id": "sparks", "type": "emitter", "params": { "rate": 40, "lifetime": 0.35 } }
],
"edges": [
{ "from": "ripple", "to": "ring.displace" },
{ "from": "ring", "to": "output.mesh" },
{ "from": "sparks", "to": "output.particles" }
]
}Illustrative schema showing the design. Implementation status is in the table below.
Houdini, Unreal Niagara, Unity VFX Graph and EmberGen are strong tools, and we use that bar as our reference. SlimeFX is aimed at a different gap: small teams who ship to more than one engine.
Niagara and VFX Graph live inside their own engines. SlimeFX is a standalone tool, so an effect is authored once and exported to the engine you ship on. Godot is demonstrated today.
We are building toward describing an effect in plain language and getting an editable node graph back, not a baked video. The artist stays in the graph.
A focused tool for game effects, aimed at indie developers, small studios and freelancers, rather than a general-purpose package for every kind of production. Pricing is not announced yet.
SlimeFX → Godot
One table, kept current. Live means demonstrated working, as in the test scenes above.
| Capability | Status |
|---|---|
| Procedural authoring: spline geometry, GPU textures, node graph | In progress |
| Godot export | Live test scenes |
| Clickable interface prototype | Live early demo |
| Prompt-to-graph authoring with Claude | Planned design above |
| Visual-reference analysis | Planned |
| Unreal Engine and Unity export | Planned |
| Public beta | Planned no date yet |
Myth Motion is an eight-person team of VFX artists. We launched the studio in 2026, bringing our creative practice and tool development into one early-stage startup.
Our studio work spans real-time procedural VFX, stylized 3D motion design, and sound-led visual direction. It keeps us close to real production problems, and that is where SlimeFX comes from.
FOUNDER · 3D TECHNICAL ARTIST & GAME VFX ARTIST
A 3D technical artist and game VFX artist, Darren learned to care about the space between an effect that looks good and one that ships. He founded Myth Motion to build the tools his own team kept wishing for: SlimeFX, a procedural VFX workflow where artists stay in control and effects travel across engines.
Tell us who you are and what engine you ship on. We will write when access opens, and we read every reply.
Working across game engines? We'd like to hear what slows you down. Contact us to discuss SlimeFX, studio collaborations, game VFX work, or technology partnerships.
myth@mythmotion.com
+1 (650) 999-9770
Early access is by waitlist. Studio collaborations and technology partnerships are welcome.