QEnvironmentLight Class
class Qt3DRender::QEnvironmentLightEncapsulate an environment light object in a Qt 3D scene. More...
| Header: | #include <QEnvironmentLight> |
| qmake: | QT += 3drender |
| Since: | Qt 5.9 |
| Instantiated By: | EnvironmentLight |
| Inherits: | Qt3DCore::QComponent |
This class was introduced in Qt 5.9.
Properties
- irradiance : Qt3DRender::QAbstractTexture*
- specular : Qt3DRender::QAbstractTexture*
Public Functions
| Qt3DRender::QAbstractTexture * | irradiance() const |
| Qt3DRender::QAbstractTexture * | specular() const |
Public Slots
| void | setIrradiance(Qt3DRender::QAbstractTexture *irradiance) |
| void | setSpecular(Qt3DRender::QAbstractTexture *specular) |
Signals
| void | irradianceChanged(Qt3DRender::QAbstractTexture *environmentIrradiance) |
| void | specularChanged(Qt3DRender::QAbstractTexture *environmentSpecular) |
Detailed Description
QEnvironmentLight 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 QEnvironmentLight. Some examples include
HDRI Haven provides many CC0-licensed HDR images that can be used as source material for the above tools.
Property Documentation
irradiance : Qt3DRender::QAbstractTexture*
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.
Access functions:
| Qt3DRender::QAbstractTexture * | irradiance() const |
| void | setIrradiance(Qt3DRender::QAbstractTexture *irradiance) |
Notifier signal:
| void | irradianceChanged(Qt3DRender::QAbstractTexture *environmentIrradiance) |
specular : Qt3DRender::QAbstractTexture*
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.
Access functions:
| Qt3DRender::QAbstractTexture * | specular() const |
| void | setSpecular(Qt3DRender::QAbstractTexture *specular) |
Notifier signal:
| void | specularChanged(Qt3DRender::QAbstractTexture *environmentSpecular) |