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Diffstat (limited to 'doc/qtdesignstudio/src/qtquick3d-editor/qtdesignstudio-3d-lights.qdoc')
| -rw-r--r-- | doc/qtdesignstudio/src/qtquick3d-editor/qtdesignstudio-3d-lights.qdoc | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/doc/qtdesignstudio/src/qtquick3d-editor/qtdesignstudio-3d-lights.qdoc b/doc/qtdesignstudio/src/qtquick3d-editor/qtdesignstudio-3d-lights.qdoc index cfd19be883..361514e053 100644 --- a/doc/qtdesignstudio/src/qtquick3d-editor/qtdesignstudio-3d-lights.qdoc +++ b/doc/qtdesignstudio/src/qtquick3d-editor/qtdesignstudio-3d-lights.qdoc @@ -42,6 +42,7 @@ \list \li \l{DirectionalLight}{Light Directional} \li \l{PointLight}{Light Point} + \li \l{SpotLight}{Light Spot} \li \l{AreaLight}{Light Area} \endlist @@ -121,6 +122,22 @@ Aside from fade, a point light has the same properties as a directional light. + \section1 Spot Light + + A spot light emits light towards one direction in a cone shape. + The light intensity diminishes when approaching the value of the + \uicontrol {Cone angle} property. The angle at which the light + intensity starts to diminish is defined by the + \uicontrol {Inner cone angle} property. Both angles are defined in degrees. + + Inside the inner cone angle, the spot light behaves similarly to the point + light. There the light intensity diminishes according to inverse-square-law. + However, the fade-off (and range) can be controlled with the + \uicontrol {Constant fade}, \uicontrol {Linear fade}, and + \uicontrol {Quadratic fade} properties. + + \image studio-3d-spot-light.png + \section1 Area Light An area light is similar to the directional light. However, instead of @@ -135,7 +152,7 @@ The image below shows an example on how to light an object with different colors using two different area lights. - \image area-light.png + \image studio-3d-area-light.png You can rotate, scale, and move area lights. |