How to improve a render with AI

That last step, the one between a correct image and one that reads as a photograph, usually happens in post-production. By hand. And it takes hours per image that are rarely in the budget.

CoconutFlow does it in a few minutes: you upload the render, make two decisions and download it. This guide explains those two decisions and what you get in each type of scene. Every example is a real project, with no retouching afterwards.

What it does, exactly

It starts from an image that already exists and gives it the finish. It doesn’t generate scenes from scratch or change the layout: your project is still your project, with your composition, your materials and your light.

There’s no prompt to write. You upload the image, choose the mode and the resolution, and the system reads the scene and adjusts the processing on its own.

Everything runs on our own platform, with our own models. Your renders never go through external AI services and are never used for training.

The mode: how close it stays to the original

This is the important decision, and the one that keeps you in control. Almost any tool that puts AI on an image reinterprets it: it looks impressive, but sometimes it hands back a room that is no longer the one you drew. Here you decide that before processing.

Switching modes is one click, and you can run the same image through all three to compare. If the client has already approved the render, there’s a specified material or signage that has to read exactly the same, stick with Balanced or Upscale.

Output resolution

The second decision is about size, not character. It goes from Original, which keeps your image’s dimensions, up to 10K (10,240 px on the longest side). What each image costs depends only on the output resolution:

You get one free 4K image every day, up to 8 a month. If your render is very large, the tool resizes it before processing, so nothing is turned away for size. And if all you need is more resolution, see the AI render upscaler.

What you get in each type of scene

The system rebuilds fine detail instead of just sharpening pixels. That’s why it doesn’t look like a sharpening filter: where the render had a flat surface, material appears.

Vegetation

This is where it shows most, and you don’t need a garden: a pot plant is enough. Render plants have a repeated perfection no real plant has: cloned leaves, a single shade of green, no shadows between them. The system separates them, gives them sheen and volume, and breaks the uniformity.

Creative gives the greenery a strength that’s hard to achieve by hand. If the project has specified planting the client will recognise, Balanced respects it.

Fabric and upholstery

They gain a lot. The weave appears, the padding takes on volume and folds stop being flat areas of colour.

Wood, stone and ceramic

The best ground of all. Grain, texture and pores are exactly the kind of detail a render flattens and the system rebuilds naturally.

Glass, metal and reflections

A flat reflection gives a render away instantly, so this is where a photographic finish pays off most. If a glazed façade is the star of the image, Balanced keeps the reflection close to the original.

People and pets

A lived-in home works just as well. People in the living room, the dog on the sofa or laundry on the line get the same finish as the architecture, and the image gains something a render rarely conveys: that someone lives there. Faces are handled separately so they stay natural.

Night and low-light scenes

This is where the jump is biggest, because noise and lack of definition are exactly what the system fixes. The worse the starting light, the more the result shows.

For a cover or a campaign, use Creative. If the image goes into planning documents and the sky has to match the site’s real orientation, use Balanced.

Not just renders: photographs too

Everything above works the same for a photo: same place, same process, same modes. It shows most in phone photos taken in indoor light: dark rooms, blown-out windows and dull colours.

If you work with photos rather than renders, there’s a whole guide for that: how to improve interior photos with AI.

What comes with every image

• Your original, untouched. The source image is kept as it is in your history, next to the result and with a slider to compare them.
• Download as JPG or PNG, ready to present or print.
• Several images at once. You don’t have to wait for one to finish before starting the next, and you can close the tab: the work carries on and is waiting when you come back.
• No subscription required. Coconut packs from €2.99 or subscriptions from €9.99 a month. If a job fails, the Coconuts come back automatically.

The method we recommend

1. Start with Balanced at Original sizeIt’s the cheapest option, and in a few minutes you see what the system does with your image.
2. Look at it at 100 %, not as a thumbnailCheck what matters to the project: the specified material, the planting, the signage.
3. Adjust the modeMore impact? Creative. More literal? Upscale.
4. Run it again at the final resolutionWith the mode decided, process it at the size you need. You only pay for the large resolution once you know you like it.

And if a version doesn’t quite convince you, process it again: every pass is a fresh interpretation.