- Qt 6.4
- Qt 3D
- QML Types
- Qt3D.Render
- EnvironmentLight
- Qt 6.4.3 Reference Documentation

# EnvironmentLight QML Type

Encapsulate an environment light object in a Qt 3D scene. More...

Import Statement: | import Qt3D.Render 2.4
Since: | Qt 5.9
Instantiates: | QEnvironmentLight

- List of all members, including inherited members

## Properties

- irradiance : Texture
- specular : Texture

## Detailed Description

EnvironmentLight uses cubemaps to implement image-based lighting (IBL), a technique often used in conjunction with physically-based rendering (PBR). The cubemaps are typically expected be based on high dynamic range (HDR) images, with a suitable OpenGL format (such as RGBA16F) that can handle the increased range of values.

There are a variety of tools that can be used to produce the cubemaps needed by EnvironmentLight. Some examples include

- cmftStudio
- IBLBaker
- Lys

HDRI Haven provides many CC0-licensed HDR images that can be used as source material for the above tools.

## Property Documentation

irradiance : Texture

Holds the current environment irradiance map texture.

By default, the environment irradiance texture is null.

Note: The exact meaning and use of this property is up to the material implementation.

specular : Texture

Holds the current environment specular map texture.

By default, the environment specular texture is null.

Note: The exact meaning and use of this property is up to the material implementation.