Do you need a 4K AI film?

Where will someone actually see the lamp?

Imagine a short film for an invented interiors studio. A linen-shade lamp appears on a large shop display and in a small website panel. The studio wants to see the weave and the edge of the shade, not simply receive a file with a bigger number in its name. These are two viewing situations for one fictional product. I would discuss them before choosing the delivery resolution.

For the display, I would ask about the screen, playback setup and usual viewing distance. For the website, I would look at the space the film occupies and how it loads on the intended devices. Neither a screen size nor a social platform decides the answer by itself. The useful starting point is a sample shown where the film will be used, at the size people will normally see.

Ask what the source contains before discussing the export

Keep three questions separate: what dimensions came out of the production step, what happened to the picture afterwards and what dimensions the delivered file has. In this article, the 4K delivery example means UHD at 3840 × 2160. If a venue asks for another specification, write that exact specification into the brief rather than relying on the short label.

A workflow can generate a source, enlarge it and then export it. That route should be described honestly. Runway’s own help distinguishes its upscaling operation from exporting a 4K editor project. I would ask the maker to name the route for the proposed shots. A 4K export setting is useful information, but it cannot stand in for looking at the source or the delivered result.

A closer view spends some of the source

Take a hypothetical 1920 × 1080 shot of the lamp. Keeping half its width and half its height leaves a 960 × 540 region. To fill a 3840 × 2160 frame, that region needs four times its width and height. Without the crop, the same source needs only a twofold enlargement in each direction. That arithmetic explains a production demand; it does not predict whether either result will look good.

The calculator below keeps the same 16:9 shape and changes both crop dimensions together. Try the full source, then keep 50 percent of each side. Notice that half the width and half the height leave one quarter of the pixel count. A vertical reframe or a different-shaped crop needs its own calculation. We already cover composition across screen formats in the related guide; here the question is the remaining source area.

Choose a short test that is difficult in the right way

For the fictional lamp, I would compare a short moment containing the shade texture, its curved edge and some movement. A soft background alone tells us little about the important product surface. A still frame is useful for reading an edge, but I would also watch the sequence normally to see whether the treatment changes its appearance from moment to moment.

Use the same moment for the comparison and keep the viewing size consistent. Ask what the proposed processing changes and whether the sample represents the final route. Avoid judging two differently cropped previews as if they were an equal test. If the lamp has acquired a new weave pattern or a different outline, a larger file has not answered the product question. That detail needs its own review.

• Name the detail the buyer needs to recognise
• Compare the same moment and crop
• Watch movement as well as a paused frame
• Review the delivered file, not only a preview badge

Agree the extra work, not a vague quality upgrade

I would describe the work as a specific comparison and delivery requirement: for example, test the agreed lamp shot for a 3840 × 2160 display file while preserving the approved product appearance. Then ask what is included if the test is unsatisfactory. The answer may involve changing the source or the shot, rather than running the same enlargement again.

Keep the original source and record the accepted processing route. An enlarged master, an HD website version and an editable project are different deliverables; ask which are included. If a future close-up matters, mention it now. The calculator only estimates geometric enlargement from your chosen dimensions. It does not read a video, choose an upscaling model, estimate a fee or promise recoverable detail.

Make the delivery size part of a wider acceptance

Open the actual export and check its dimensions, then watch it through the intended playback route. For our shop display, that means the agreed player and screen rather than just the editor’s preview. For the website, it means the deployed version at its normal display size. Record the file, date and viewing setup when reporting a problem, so the next comparison concerns the same thing.

For a conversation with SOLONSKY Films, bring the destination, the source you already have and the detail that must stay convincing. We can agree a useful sample and the required files before defining the scope. Sometimes the right result is a carefully finished HD version. Sometimes a 4K delivery has a clear job. The decision should come from the film you can inspect, not the largest number in a menu.