# What is Physically Based Rendering?

> Physically Based Rendering

It is a method that enables the rendering of three-dimensional objects by mimicking the light and material properties of the real world.

## Overview
This method calculates how light hits and reflects off surfaces according to the laws of physics. Thus, digital objects look natural and convincing as if they were in a real room. It is used to increase realism in visual effects and the gaming world.

*Analogy: It is like a painter adjusting shadows while thinking about how light hits that color when mixing paints.*

## How it works
The software analyzes the roughness of the surface and whether it is metallic. It mathematically calculates how rays from light sources will bounce off this surface. As a result of these calculations, the object is given the most natural shadow and brightness.

## Where it is used
It is frequently used in game engines, film productions, and architectural visualization programs.

## Commonly confused with
Traditional rendering methods simplify light not according to physical laws, but only in a way that looks visually pleasing.

## Frequently asked questions
**Why is it not used in every game?**
Because physical calculations put a heavy load on the processor and require high hardware power.

**How does PBR affect realism?**
It ensures that objects look consistent and realistic under different lighting conditions (daylight, night, under a lamp).


## Related terms
- [Rendering](/en/dictionary/rendering/)
- [Design Tool](/en/dictionary/design-tool/)
- [Godot Engine](/en/dictionary/godot-engine/)

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Source: TreScout Dictionary · https://trescout.com/en/dictionary/pbr/