👗 Fashion & Textile Design · 3D garment design

DRAPE · x402

Micro-metered physics for haute couture designers. Every time a user adjusts a drape parameter, renders a high-fidelity wrinkle simulation, or exports a pattern file for digital manufacturing, a 0.01 USDC micro-settlement occurs. Digital Drapes removes the subscription barrier for independent designers, allowing them to pay exactly for the compute-intensive physics steps they use. Proprietary garment simulations are locked behind x402 signatures, ensuring provenance and payment for every virtual fitting.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the 3D garment design engine is metered with x402: 0.01 HBAR or 0.01 HTS USDC per call, paid from the embedded wallet, so fashion designers — or the agents working for them — pay per query and get a HashScan receipt every time.

Why this primitiveShifting from a static NFT model to a pay-per-compute/pay-per-interaction model aligns with the high processing costs of 3D garment physics. It transforms 'browsing' into 'fitting' where every drape adjustment is a micro-transactional event.

Kernel
an x402 v2 paywall metering access at 0.01 HBAR or 0.01 HTS USDC (token 0.0.429274) per call, paid from the embedded wallet through the relay and verified by a self-hosted facilitator against the Hedera mirror node
Drives the UI as
a 'pay 0.01 HBAR or USDC to unlock' button with a live flow log and a HashScan link for every settlement
Appendix · Secrets

Required keys.

HEDERA_OPERATOR_ID
Hedera testnet account id (0.0.xxxxxx). Create and fund it free.
open ↗
HEDERA_OPERATOR_KEY
ECDSA private key for that account, from the Hedera portal dashboard.
open ↗
REOWN_PROJECT_ID
Free project id powering the HashPack pairing modal.
open ↗
HEDERA_RPC_URL
Optional. JSON-RPC relay, defaults to the public Hashio endpoint.
open ↗
PINATA_JWT
Pins images / JSON / manifests to IPFS.
open ↗

Add these in your Lovable project under Settings → Secrets before pasting the prompt below.

Appendix · Mega-prompt

The build prompt.

Paste into a fresh Lovable project. Make sure all five secrets above are set first. read the build strategy →

Loading the mega-prompt…
Appendix · Market

Market sizing.

TAM
$1.8B
The global 3D CAD and textile design software market, pivoting toward agentic, automated garment generation.
SAM
$450M
The digital fashion and virtual fitting room sector, focusing on independent designers and 3D studios.
SOM
$12M
Initial capture of procedural pattern makers and digital-only apparel brands on Hedera.

Indicative figures for hackathon pitches — refine with your own research before raising.

See also

Adjacent entries.