Render Fun tutorial series · Lesson 7 / 10

Render Fun Tutorial 7: Clean Renders, Quality Levels, the AI Denoiser and Resolution

17 October 2026 · 3 min read · Ufuk Şen

A clean, sharp final picture is what clients see. This lesson explains where noise comes from and which settings take it away, without waiting longer than you need to.

Render Fun’s quality profile: Low, Medium, High and Until clean

Why a render starts noisy

Render Fun traces rays of light, one sample after another. Early on the picture shows fine grain, the noise, and every new sample makes it cleaner; the counter at the bottom shows how many are done.

The quality profile

Low: a quick try.
Medium: enough for most work.
High: for presentations.
Until clean: keeps going until the noise is down to 2 %; the cleanest and the slowest.

The Quality panel with Low, Medium, High and Until clean

The AI denoiser cleans the last bit of noise at the end of a render and on the still preview. Fast indirect light makes interiors clear up much faster; keep it on.

Anti-aliasing and size

Anti-aliasing smooths edges: Balanced is recommended, Quality keeps thin lines such as blinds and cables continuous, and Best doubles the samples of the final render for the finest details. The Size buttons set the pixels of the saved picture: HD is 1920 pixels wide, 4K is 3840. A bigger picture takes longer, so test small and render large at the end.

Anti-aliasing levels: Fast, Balanced, Quality and Best

Region render

When only one part needs another look, press "Choose a region" and drag a rectangle: only that part is worked on again, and the rest of the picture stays as it is. Every render you save is also kept in the Render Buffer, under Extensions › Render Fun.