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| |
| #include "qquick3ddirectionallight_p.h" |
| #include "qquick3dobject_p_p.h" |
| |
| #include <QtQuick3DRuntimeRender/private/qssgrenderlight_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| /*! |
| \qmltype DirectionalLight |
| \inherits Light |
| \inqmlmodule QtQuick3D |
| \brief Defines a directional light in the scene. |
| |
| The directional light emits light in one direction from an unidentifiable source located |
| infinitely far away. This is similar to the way sunlight works in real life. A directional |
| light has infinite range and does not diminish. |
| |
| If \l {Light::castsShadow}{castsShadow} is enabled, shadows will be parallel to the light |
| direction. |
| |
| Moving a directional light does not have any effect. The light will always be emitted in the |
| direction of the light's Z axis. |
| |
| Rotating the light along its X or Y axis will change the direction of the light emission. |
| |
| Scaling a directional light will only have an effect in the following cases: |
| \list |
| \li If Z scale is set to a negative number, the light will be emitted in the opposite direction. |
| \li If the scale of any axis is set to 0, the light will be emitted along the world's Z axis. |
| \note Rotating the light will then have no effect. |
| \endlist |
| |
| \sa AreaLight, PointLight |
| */ |
| |
| QSSGRenderGraphObject *QQuick3DDirectionalLight::updateSpatialNode(QSSGRenderGraphObject *node) |
| { |
| if (!node) { |
| markAllDirty(); |
| node = new QSSGRenderLight(); |
| QSSGRenderLight *light = static_cast<QSSGRenderLight *>(node); |
| light->m_lightType = QSSGRenderLight::Type::Directional; |
| } |
| |
| QQuick3DAbstractLight::updateSpatialNode(node); |
| |
| return node; |
| } |
| |
| QT_END_NAMESPACE |