VFX Compose — same model on a Florence rooftop at golden hour VFX Compose — same model on a sunset cliff VFX Compose — same model in a fantasy dragon scene VFX Compose — same model on a neon nighttime rooftop VFX Compose — same model in a snowy forest at dawn VFX Compose — same model in a cozy living room
🎬

VFX Compose

Drop the same subject into any scene.

Same face. Same outfit. Same jewelry. New world. We matte your subject, generate a fresh background from your prompt, blend the lighting, and layer the original pixels back on top. The face you uploaded is the face you get — byte-for-byte.

What it makes

Six real outputs from the live API. Same source photo, six different prompts, ~21 seconds each. The face, the white blazer, the gold pendant chain, the transparent block-heel sandals — all identical to the source. Only the scene is freshly generated.

How it works

A three-stage classical-VFX pipeline. No black-box subject regeneration. No plastic-skin AI redraw.

Stage 1

Matte the subject

BiRefNet (MIT license) cuts an alpha matte at source resolution. Hair wisps, jewelry chains, and transparent shoes are preserved — not flattened.

Stage 2

Generate the scene

SDXL-Inpaint (OpenRAIL++-M license) fills the background around the matte using your prompt. We then re-layer the source subject pixels back on top — so the face stays byte-identical.

Stage 3

Harmonize tone & shadow

Classical Lab-space Reinhard color transfer warms or cools the skin toward the scene's lighting. A procedural contact shadow grounds the subject. No model touches the face.

Why not just "replace the background"?

Background replacement keeps your subject on a flat backdrop. VFX Compose treats the subject like a film element dropped into a freshly built world — with matched lighting tone, a contact shadow, and a scene-aware silhouette dilation so SDXL doesn't paint a halo of the original studio light around you.

ProviderWhat it doesCost per image
Bria · Background GenerationSDXL-style scene fill, subject pixels usually preserved$0.030
Photoroom · AI BackgroundScene from prompt, mid-tier matting~$0.10 effective on Pro plan
Adobe Firefly · Generate BackgroundStudio-grade fill, subscription gated~$0.04 in credits
PixelAPI · VFX ComposeBiRefNet matte + SDXL-Inpaint scene + Lab harmonize + procedural shadow. Face byte-identical by construction.$0.015

Source: each vendor's public pricing page (May 2026). VFX Compose at 45 credits = $0.015 — set deliberately at 2× cheaper than Bria, the cheapest verified direct rival.

Watch it in action

Full walkthrough video is coming. In the meantime, the live tool is ready and the docs page has tested cURL examples.

🎬

Tutorial coming soon

Subscribe to PixelAPI on YouTube for the v2 walkthrough.

📺 Subscribe to PixelAPI on YouTube →

Pricing

Pay-as-you-go credits. No subscription. Free credits on signup. 2× cheaper than Bria's $0.03/image — and our subject pixels are byte-identical to your input.

Ready to drop your subject into a new world?

Sign up, get free credits, and run your first composite in 30 seconds.