Introduction to changing resolution scale

To reduce the amount of work for the GPU and speed up rendering, you can change the resolution of the image Unity renders. For example, you can render at a lower resolution when the frame rate of the application decreases.

When you change the resolution scale, Unity does the following:

1. Renders at a lower resolution.
2. Uses one of several upscaling technique to increases the resolution of the rendered image, so it matches the final image.

If you use the Universal Render Pipeline (URP) or the Built-In Render Pipeline, you can only use dynamic resolution on some platforms.

For more information, refer to:

• Dynamic resolutionA Camera setting that allows you to dynamically scale individual render targets to reduce workload on the GPU. More info
  See in Glossary if you use URP or the Built-In Render Pipeline.
• Dynamic resolution in the High Definition Render Pipeline (HDRP)

Upscaling techniques

The upscaling techniques depend on the render pipelineA series of operations that take the contents of a Scene, and displays them on a screen. Unity lets you choose from pre-built render pipelines, or write your own. More info
See in Glossary you choose and the platform you build for.

The Built-In Render Pipeline always uses a filtering technique the GPU provides.

Additional resources

• Choosing a render pipeline
• Graphics rendering: Getting the best performance with Unity 6