Meshy V6 Lite Retexture API Documentation

Meshy V6 Lite Retexture API Documentation

Playground

Meshy 6 Lite Retexture re-textures an existing 3D model from a text prompt or a reference image. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Meshy 6 Lite Retexture generates new textures for an existing 3D model using a text description or reference image. Explore different materials, colors, and surface details while keeping the original model geometry.

Why Choose This?

• Retexture existing models — Change the materials, colors, and surface appearance of an existing 3D asset.
• Text or image guidance — Describe the desired texture or provide a reference image.
• PBR material support — Generate metallic, roughness, and normal maps when needed.
• UV control — Reuse the model’s existing UV layout or generate a new one.
• Simple workflow — Upload a model, provide texture guidance, and generate a new textured asset.

Parameters

How to Use

1. Upload a model — Provide the 3D asset you want to retexture.
2. Add texture guidance — Describe the desired appearance or provide a reference image.
3. Configure materials optional — Enable PBR maps when needed.
4. Choose UV handling optional — Keep the original UV layout or generate a new one.
5. Submit — Generate and retrieve the retextured model.

Pricing

$0.40 per model.

The prompt, reference image, PBR setting, and UV setting do not add separate charges.

Best Use Cases

• Material variations — Explore different materials and finishes on the same 3D model.
• Product visualization — Create new colors and surface treatments for product assets.
• Game assets — Produce texture variations without regenerating geometry.
• Style exploration — Apply different visual directions using text or image references.
• PBR workflows — Generate material maps for lighting-sensitive rendering.

Pro Tips

• Describe materials, colors, finish, wear, and surface properties clearly.
• Use a reference image with a consistent material or visual style.
• Keep enable_original_uv=true when the model already has a suitable UV layout.
• Disable original UV preservation when the model has missing or unsuitable UVs.
• Enable PBR when metallic, roughness, and normal maps are needed.

Notes

• Provide at least one of prompt or texture_image.
• If both are supplied, texture_image takes priority.
• enable_pbr defaults to false.
• enable_original_uv defaults to true.
• PBR output includes metallic, roughness, and normal maps.
• Meshy 6 Lite does not generate an emission map.
• A reference image with a substantially different object shape may be harder to match to the source model.
• Reusing the original UV layout works best when the source model already has suitable UV coordinates.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result

set -euo pipefail

export WAVESPEED_API_KEY="your-api-key"

REQUEST_BODY=$(cat <<'JSON'
{
  "model": "example",
  "enable_pbr": false,
  "enable_original_uv": true
}
JSON
)

# 1. Submit the prediction once. Never retry this request automatically:
# a retry after an unclear failure can create a second, billed task.
CHECK='The task may already exist. Check History or the predictions list before submitting again.'
if ! SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  --connect-timeout 10 --max-time 60 \
  -X POST "https://api.wavespeed.ai/api/v3/meshy/v6-lite/retexture" \
  -H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
  -H "Content-Type: application/json" \
  -d "${REQUEST_BODY}"); then
  printf 'Submit failed. %s\n' "${CHECK}" >&2
  exit 1
fi

TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id. %s\n' "${CHECK}" >&2
  exit 1
fi
RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"

# 2. Poll until the prediction reaches a final status.
BODY_FILE=$(mktemp)
trap 'rm -f "${BODY_FILE}"' EXIT
while true; do
  # Transient errors (429, 5xx) are retried, honoring Retry-After.
  HTTP_CODE=$(curl --silent --show-error --fail-with-body \
    --connect-timeout 10 --max-time 60 --retry 5 --retry-delay 2 \
    --output "${BODY_FILE}" --write-out '%{http_code}' \
    "${RESULT_URL}" \
    -H "Authorization: Bearer ${WAVESPEED_API_KEY}" || true)
  case "${HTTP_CODE}" in
    2??) ;;
    000|429|5??)  # dropped connection or temporary error: keep polling
      printf 'Task %s: HTTP %s, polling again in 10s\n' "${PREDICTION_ID}" "${HTTP_CODE}" >&2
      sleep 10; continue ;;
    *) printf 'Task %s: HTTP %s\n' "${PREDICTION_ID}" "${HTTP_CODE}" >&2
      cat "${BODY_FILE}" >&2; exit 1 ;;
  esac
  RESULT=$(jq 'if type == "object" and has("data") then .data else . end' "${BODY_FILE}")
  STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')

  case "${STATUS}" in
    completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
    failed|cancelled|timeout|deleted)
      printf 'Task %s ended with status %s\n' "${PREDICTION_ID}" "${STATUS}" >&2
      printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
    *) sleep 2 ;;
  esac
done

Parameters

Task Submission Parameters

Request Parameters

Every model also accepts the global request options enable_sync_mode and enable_base64_output; see their pages for details.

Response Parameters

Result Request Parameters

Result Response Parameters