qt - Qt3Dでライトを変更する方法

Question

Qt3Dでライト設定を変更するにはどうすればよいですか?

フレームグラフの一部であるべきだと思いますが、標準の forwardrenderer にはライト設定に関連するメソッドはありません。

Answer 1

私が覚えていることから、直接照明の設定はありません。

あなたがすることは、スポットライトを作成し、それを調整することです.

Qt3D の例から:

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import Qt3D 2.0
import Qt3D.Renderer 2.0

Entity {
    id: root

    property vector3d lightPosition: Qt.vector3d(30.0, 30.0, 0.0)
    property vector3d lightIntensity: Qt.vector3d(1.0, 1.0, 1.0)

    readonly property Camera lightCamera: lightCamera
    readonly property matrix4x4 lightViewProjection: lightCamera.projectionMatrix.times(lightCamera.matrix)

    Camera {
        id: lightCamera
        objectName: "lightCameraLens"
        projectionType: CameraLens.PerspectiveProjection
        fieldOfView: 45
        aspectRatio: 1
        nearPlane : 0.1
        farPlane : 200.0
        position: root.lightPosition
        viewCenter: Qt.vector3d(0.0, 0.0, 0.0)
        upVector: Qt.vector3d(0.0, 1.0, 0.0)
    }
}

光と影の完全な例

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それとは別に、 と もQDirectionalLightありQPointLightます。