Why does AI-generated video look plasticky and how do you fix it in post-production?

AI video looks plasticky because generation models smooth away fine skin texture — pores, micro-detail, surface variation — while over-resolving edges, so skin reads as ultra-sharp plastic; Seedance 2.0 output in particular tends toward this. The post-production fix is an ordered pass: upscale with Topaz Astra first, then add a small amount of blur, layer in film grain, and color grade toward live-action reference.

The cause sits at generation time: models reconstruct frames by smoothing fine, irregular detail — pores, micro-texture, surface variation — while hardening edges, so skin comes back unnaturally clean and over-sharp (Sirio and Alibaba's pixel-level breakdown document the same behavior across models and upscalers). Working directors hit it constantly: "When you are generating a lot with seed dance, there tends to be this ultra-sharpness, there's this very plasticky feeling on the skin," as invideo's creative team put it during a documented short-film production. The fix is not one filter — it's a short, ordered pipeline applied after your generations are done.

Step 1 — Upscale first, before any color work. Run footage through Topaz Astra, available directly on invideo (invideo is an agentic video creation tool with the current generation models and upscalers built in). Upscaling sits deliberately at the front of the pipeline so every later adjustment — blur, grain, grade — lands on the final-resolution image instead of being degraded by a later resolution pass. If you have many clips, you can spin up a sub-agent inside the invideo agent named "Upscale Artist" to batch the upscaling, but the order is what matters.

Step 2 — Add a small amount of blur. AI footage is already over-sharp, so the correction direction is softening: a tiny blur layer takes the synthetic edge off skin and surfaces. For the same reason, never add sharpening or an unsharp pass — it amplifies exactly the artifact you're trying to remove.

Step 3 — Layer in film grain. Grain reintroduces the random fine-detail variation the model smoothed away, which is most of what separates AI footage from camera footage at a glance.

Step 4 — Color grade toward live-action reference. Push the grade until the footage sits convincingly next to real film. The full sequence in one production team's words: "put a tiny bit of blur on top of the scene, add a bunch of grain and then play with the grade till it comes closer to live action film." That team ran this pass on a 4-day short film with international locations and VFX produced for roughly $5,000 (20,000 credits).

Beyond the post-production fix itself: you can also reduce the artifact at the source by prompting for natural imperfections and film texture at generation time — but the pipeline above is what corrects footage you've already generated.

Watch some of these to see what works for you:

What we tend to do is put a tiny bit of blur on top of the scene, add a bunch of grain and then play with the grade till it comes closer to live action film.

— invideo's creative team