Terms of Service
Last updated: 8 November 2026
1. The service
Dotflip (vi2lab.com), run by Vladislav Chernenko, an individual, turns a 3D model you provide into a point-cloud (bistable illusion) video. Everything (loading the model, rendering and encoding the video) happens in your browser on your device. We never receive your model or your video.
2. Your models
You may only upload models that you own or have the right to use this way (you confirm this before uploading). You are responsible for the models you use and the videos you make and publish. You keep all rights to your models and your videos; we claim none.
Sample models are free models made by others, offered for trying the tool. Their license is shown next to each one. Poly Haven samples are CC0 (no conditions) and your browser downloads them straight from Poly Haven. The Fox sample's rig and animation are CC BY 4.0: if you publish a video made from it, credit the authors as shown next to it. We don't own these models and give no rights beyond their licenses.
3. Account
You need an account (email or Google) to buy credits and render videos without the watermark. Keep access to your email: it is how you sign in. One person per account. You must be at least 13 to use the service; if you are under 18, you need a parent's or guardian's permission to buy credits.
4. Payment
Our order process is conducted by our online reseller Lemon Squeezy, which is the merchant of record for all purchases: Lemon Squeezy takes the payment, issues the receipt and handles taxes, VAT and payment disputes. Packs are one-time payments, there is no subscription and nothing to cancel. Current prices are on the pricing page. Checkout may not be available in some countries or for some payment methods because of sanctions, export rules or payment-provider restrictions.
5. Credits
- Credits are bought in packs. A video without the watermark costs 1 credit at any resolution (up to 4K). The cost is shown before you render.
- Credits don't expire. They have no cash value and can't be transferred or exchanged for money, except as a refund under section 6.
- Credits are spent when a render starts. If the render fails, is cancelled, or never finishes, the credit is returned automatically (at the latest a few hours later). Re-rendering the same model with exactly the same settings while that render is still open doesn't cost again.
- Because the video is made only on your device, it is not stored anywhere else: download it when it is done. We can't recover a video you didn't save.
- Demo videos are free and carry a "DEMO" watermark.
- Sign-up credits (promotion): a new account gets free credits (currently 1), once per person. They work like bought credits but are used first, can't be refunded or exchanged for money, and creating extra accounts to get them again is not allowed. We may change or end this offer for new accounts at any time; credits already given stay yours.
6. Refunds
The full policy is on the refund page. In short:
- A pack with no credits used can be refunded in full within 14 days of purchase. Once any credit from a pack has been used, that pack can't be refunded, fully or partly.
- Request a refund from your account (Account → Request refund) or by email. Each request is reviewed by hand within 3 business days; while it is open, the credits of that pack can't be used. Approved refunds are paid by Lemon Squeezy back to the original payment method.
- Credits are delivered right after payment. Before paying, you agree to this and confirm that you lose the statutory 14-day right of withdrawal (EU/UK) once the credits are delivered.
- A failed render is not a reason for a money refund: its credit is returned automatically (section 5).
- Try the free demo first: it shows exactly what you'll get, only with the watermark.
- If you open a payment dispute or chargeback, the credits of that pack are frozen until it's resolved; if the payment is reversed, those credits are removed, and credits already used from it become a negative balance.
7. Fair use
Don't try to get videos without the watermark without paying, misuse the refund of failed renders, automate sign-ups, or attack the service. We may limit, review or close accounts that do; credits bought and not misused are refunded if we close an account without your fault.
8. No warranty
The service is provided "as is". Results depend on your model and your device: very large models or weak devices may render slowly or fail (failed renders cost nothing, see section 5). To the extent the law allows, our liability is limited to the amount you paid us in the last 12 months.
9. Changes
We may change these terms; the date above shows the current version. Prices and terms that applied when you bought a pack keep applying to that pack's credits.