# Trellis 2 API

> Yn troi un ddelwedd yn rhwyll 3D GLB â gwead, gyda gosodiadau addasadwy ar gyfer strwythur, siâp, gwead ac UV

Yn adeiladu ased 3D o un ddelwedd (`image_url`) ac yn dychwelyd ffeil GLB. Mae `resolution` yn 512, 1024 neu 1536, ac mae `texture_size` yn 1024, 2048 neu 4096. Mae gan bob un o'r tri cham (strwythur, siâp, gwead) ei reolyddion arweiniad a chamau samplu ei hun. Mae `decimation_target` yn gosod nifer fertigau'r rhwyll (5,000 i 2,000,000), ac mae opsiynau ail-rwyllo a datblygu UV ar gael.

- Model id: `trellis-2`
- Made by: Microsoft
- Category: Image to 3D
- Output: 3d
- Price: from $0.25 / request (cheapest run $0.25 (250 API credits))
- Run: `POST https://api.doitong.com/v1/run/trellis-2`
- Quote: `POST https://api.doitong.com/v1/quote/trellis-2`
- Docs page: https://doitong.com/cy/developers/models/trellis-2

## Pricing

Price: **from $0.25 / request** (the lowest tier; the quote prices your exact input). Billed once per request.

Price rules (the first rule that matches the input wins; a parameter you leave out counts as its default):

- When `resolution` = 1024: $0.30 (300 API credits) / request
- When `resolution` = 1536: $0.35 (350 API credits) / request

The full example input below costs $0.30 = 300 API credits (1 request × 300 API credits).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.com/v1/quote/trellis-2` with the same JSON body returns the exact price for that input; the quote is exactly what a run charges. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

Send either the canonical name or the native field name (not both). Canonical names are the same across models.

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `seed` |  | integer \| null | no |  |  | Hedyn a ddefnyddir ar gyfer cynhyrchu ar hap atgynhyrchadwy. |
| `resolution` |  | enum (integer) | no | `1024` | `512`, `1024`, `1536` | Cydraniad yr allbwn; mae ei gynyddu'n ychwanegu manylion ond yn cymryd mwy o amser. |
| `ss_guidance_strength` |  | number | no | `7.5` | 0 – 10 | Rheolaeth ffyddlondeb strwythur 3D cychwynnol: mae ei chynyddu'n ffafrio cyfatebiaeth agosach â'r ddelwedd fewnbwn ar draul sŵn ychwanegol posibl. |
| `ss_guidance_rescale` |  | number | no | `0.7` | 0 – 1 | Rheolaeth arteffactau arweiniad cam 1, gan gyfnewid effeithiau arweiniad cryfach mewn gosodiadau is am allbwn mwy sefydlog mewn gosodiadau uchel. |
| `ss_guidance_interval_start` |  | number | no | `0.6` | 0 – 1 | Ffin gychwyn ffenestr arweiniad di-ddosbarthwr yng ngham 1 (strwythur gwasgaredig), wedi'i mynegi fel ffracsiwn dad-sŵnio. Mae gosodiadau is yn cychwyn arweiniad yn gynt; dim ond yr egwyl o interval_start i interval_end sy'n defnyddio arweiniad, gyda phrosesu heb arweiniad mewn mannau eraill. |
| `ss_guidance_interval_end` |  | number | no | `1` | 0 – 1 | Terfyn arweiniad ar gyfer cam 1 (strwythur gwasgaredig): dewiswch werth sydd o leiaf mor fawr â ss_guidance_interval_start. Mae'r gwerth yn nodi'r ffracsiwn o ddad-sŵnio a gyrhaeddir pan fydd arweiniad di-ddosbarthwr yn dod i ben. |
| `ss_sampling_steps` |  | integer | no | `12` | 1 – 50 | Nifer camau tynnu sŵn y strwythur cychwynnol: daw enillion ansawdd posibl o gamau ychwanegol gyda phrosesu arafach. |
| `ss_rescale_t` |  | number | no | `5` | 1 – 6 | Gosodwch eglurder y trawsnewidiad drwy amserlen sŵn cynhyrchu'r strwythur: mae cynyddu'r gwerth hwn yn gwneud trawsnewidiadau'n fwy eglur. |
| `shape_slat_guidance_strength` |  | number | no | `7.5` | 0 – 10 | Rheolaeth ffyddlondeb geometreg fanwl: mae cynyddu'r ymlyniad wrth y ddelwedd fewnbwn yn ychwanegu manylion, gyda risg o sŵn ychwanegol. |
| `shape_slat_guidance_rescale` |  | number | no | `0.5` | 0 – 1 | Cynyddwch y gosodiad hwn pan fo'r geometreg yn edrych yn swnllyd: mae'n lleihau arteffactau a achosir gan arweiniad cryf yn ystod y cam siâp. |
| `shape_slat_guidance_interval_start` |  | number | no | `0.6` | 0 – 1 | Pwynt actifadu arweiniad di-ddosbarthwr ar gyfer mireinio siâp yng ngham 2. Wedi'i fynegi fel ffracsiwn o gynnydd dad-sŵnio, mae'n gosod interval_start; dim ond o fewn y ffenestr rhwng interval_start ac interval_end y mae arweiniad yn gweithredu. |
| `shape_slat_guidance_interval_end` |  | number | no | `1` | 0 – 1 | Terfyn arweiniad ar gyfer cam 2 (mireinio siâp): dewiswch werth sydd o leiaf mor fawr â shape_slat_guidance_interval_start. Mae'r gwerth yn nodi'r ffracsiwn o ddad-sŵnio a gyrhaeddir pan fydd arweiniad di-ddosbarthwr yn dod i ben. |
| `shape_slat_sampling_steps` |  | integer | no | `12` | 1 – 50 | Nifer camau tynnu sŵn mireinio'r siâp: gall geometreg esmwythach gostio cyflymder pan ddefnyddir camau ychwanegol. |
| `shape_slat_rescale_t` |  | number | no | `3` | 1 – 6 | Gosodwch eglurder manylion geometrig drwy amserlen sŵn mireinio'r siâp; mae cynyddu'r gwerth hwn yn cynhyrchu manylion mwy eglur. |
| `tex_slat_guidance_strength` |  | number | no | `1` | 0 – 10 | Rheolaeth ffyddlondeb lliw gwead: mae ymlyniad agosach at liwiau'r ddelwedd fewnbwn mewn gosodiadau uwch yn cynyddu bywiogrwydd ond gall achosi gor-dirlawnder. |
| `tex_slat_guidance_rescale` |  | number | no | `0` | 0 – 1 | Cynyddwch y gosodiad hwn i fynd i'r afael â gweadau swnllyd neu fandio lliw: mae'n lleihau arteffactau a achosir gan arweiniad cryf yn ystod y cam gwead. |
| `tex_slat_guidance_interval_start` |  | number | no | `0.6` | 0 – 1 | Pwynt actifadu arweiniad di-ddosbarthwr ar gyfer cynhyrchu gwead yng ngham 3. Wedi'i fynegi fel ffracsiwn o gynnydd dad-sŵnio, mae'n gosod interval_start; dim ond o fewn y ffenestr rhwng interval_start ac interval_end y mae arweiniad yn gweithredu. |
| `tex_slat_guidance_interval_end` |  | number | no | `0.9` | 0 – 1 | Terfyn arweiniad ar gyfer cam 3 (gwead): dewiswch werth sydd o leiaf mor fawr â tex_slat_guidance_interval_start. Mae'r gwerth yn nodi'r ffracsiwn o ddad-sŵnio a gyrhaeddir pan fydd arweiniad di-ddosbarthwr yn dod i ben. |
| `tex_slat_sampling_steps` |  | integer | no | `12` | 1 – 50 | Nifer y camau tynnu sŵn a ddefnyddir i gynhyrchu gweadau. Mae cynyddu nifer y camau'n cymryd mwy o amser ond gall gynhyrchu gweadau glanach. |
| `tex_slat_rescale_t` |  | number | no | `3` | 1 – 6 | Gosodwch eglurder manylion gwead drwy amserlen sŵn cynhyrchu'r gwead; mae cynyddu'r gwerth hwn yn cynhyrchu manylion mwy eglur. |
| `decimation_target` |  | integer | no | `500000` | 5,000 – 2,000,000 | Targed cyfrif fertigau'r rhwyll, gyda 500k wedi'i argymell ar gyfer defnydd cyffredinol a 20k–50k ar gyfer y we/ffôn symudol. Mae lleihau'r targed yn cyfnewid manylion y rhwyll am ffeiliau llai. |
| `texture_size` |  | enum (integer) | no | `2048` | `1024`, `2048`, `4096` | Cydraniad gwead y rhwyll ar gyfer pobi. Mae manylion wyneb mwy manwl yn cynhyrchu ffeiliau mwy pan gynyddir y cydraniad hwn. |
| `remesh` |  | boolean | no | `true` |  | Ailadeiladu topoleg sy'n creu trionglau rhwyll glanach, gan wella fel arfer addasrwydd ar gyfer defnyddiau diweddarach megis animeiddio neu argraffu 3D, ar draul prosesu arafach. |
| `remesh_band` |  | number | no | `1` | 0 – 4 | Lwfans symud ail-rwyllo: gall llyfnhau ychwanegol aberthu manylion mân pan gynyddir y gwerth hwn. Mae'r gosodiad yn cyfyngu ar ddadleoli fertigau o'i gymharu â'r arwyneb gwreiddiol. |
| `remesh_project` |  | number | no | `0` | 0 – 1 | Cryfder taflunio ar gyfer dychwelyd fertigau wedi'u hail-rwyllo i'r arwyneb gwreiddiol: mae 1 yn cadw manylion drwy daflunio llawn, tra bod 0 yn gadael taflunio i ffwrdd ar gyfer canlyniad llyfnach. |
| `uv_unwrap_angle_threshold_deg` |  | number | no | `90` | 0 – 180 | Terfyn ongl siart UV mewn graddau, gan gyfyngu ar faint y gall normalau wynebau cyfagos wahaniaethu o fewn un siart. Mae codi'r terfyn yn ffafrio llai o siartiau mwy, gan beryglu ymestyn; mae ei leihau yn ffafrio mwy o siartiau a llai o ystumio. |
| `uv_unwrap_refine_iterations` |  | integer | no | `0` | 0 – 10 | Nifer y pasys mireinio lleol a ddefnyddir i gyfrifo siartiau UV. |
| `uv_unwrap_global_iterations` |  | integer | no | `1` | 1 – 10 | Gellir gwella cydbwysedd siartiau UV drwy gynyddu'r nifer hwn o basys clystyru byd-eang a ddefnyddir i gyfrifo'r siartiau. |
| `uv_unwrap_smooth_strength` |  | number | no | `1` | 0 – 10 | Addaswch pa mor gryf y caiff ymylon siartiau UV eu llyfnhau; mae llai o wythiennau gweladwy mewn gosodiadau uwch yn dod â risg o ystumio UV. |
| `image_url` | `image` | string (image URL) | yes |  |  | URL sy'n pwyntio at y ddelwedd ffynhonnell ar gyfer trosi 3D. |

File parameters (`image`) take a public `https://` URL, a `data:` URI up to 10 MB, or the `file_url` of an upload from `POST /files`.

## Example input

Required parameters only:

```json
{
  "image": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
```

A fuller example:

```json
{
  "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/trellis-2?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.com/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/trellis-2?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/trellis-2", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.com/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "trellis-2",
      "input": {
        "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "trellis-2",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 300,
    "usd": "0.30",
    "charged": 300,
    "refunded": 0
  },
  "input": {
    "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  },
  "output": {
    "model_glb": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200
    }
  },
  "outputs": [
    {
      "type": "file",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_size": 1843200,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `model_glb` | object {url, content_type, file_name, file_size} | Model 3D a gynhyrchir ar ffurf GLB. |

## Related models

- [Trellis 2 · Retexture](https://doitong.com/developers/models/trellis-2/retexture.md) (`trellis-2/retexture`): from $0.20 / request
- [Trellis](https://doitong.com/developers/models/trellis.md) (`trellis`): $0.02 / request
- [Trellis · Multi](https://doitong.com/developers/models/trellis/multi.md) (`trellis/multi`): $0.02 / request
- [TRELLIS.2 LoRA Inference](https://doitong.com/developers/models/trellis-2-lora.md) (`trellis-2-lora`): from $0.25 / request
- [Hi3D Image to 3D](https://doitong.com/developers/models/hitem3d/hi3d/image-to-3d.md) (`hitem3d/hi3d/image-to-3d`): $0.50 / run
- [Hi3D Image to 3D · v3.0](https://doitong.com/developers/models/hitem3d/hi3d/v3.0/image-to-3d.md) (`hitem3d/hi3d/v3.0/image-to-3d`): from $1.80 / run
- [Hi3D Multiview to 3D · Multi View to 3D](https://doitong.com/developers/models/hitem3d/hi3d/multi-view-to-3d.md) (`hitem3d/hi3d/multi-view-to-3d`): $0.50 / run
- [Hi3D Multiview to 3D · v3.0 · Multi View to 3D](https://doitong.com/developers/models/hitem3d/hi3d/v3.0/multi-view-to-3d.md) (`hitem3d/hi3d/v3.0/multi-view-to-3d`): from $1.80 / run

## Links

- HTML page: https://doitong.com/developers/models/trellis-2
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=trellis-2
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/trellis-2