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  1. Qt 3D Studio
  2. QT3DS-366 Behaviors, actions, events in Runtime 2.0
  3. QT3DS-1284

What to do with the two behavior scripts that ship with the release

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Details

    • Runtime 1.x: fa481c169209874ee5daace5d672bfe5d50fddbd, fe07e6d8ef7e417cc61c336169361d669f513284; Runtime 2.x: 7d821e7c8ba30cb75b3be3ee4d0723c45d7d2a45

    Description

      The following behavior APIs (the "questionable" set) are removed in 2.0 since some of these is not currently possible to implement in a manner compatible with 1.1. These should never have been exposed since they are part of an experiment which, as a general rule in Qt, cannot just result in randomly introducing non-future-proof public APIs.

          Q_INVOKABLE QVector2D getMousePosition(); -> this is not future-proof in any way, let alone compatible with touch devices
          Q_INVOKABLE QMatrix4x4 calculateGlobalTransform(const QString &handle); -> we could give the Qt3D global transform but that is always right-handed; calculating a new one with 1.x conventions is not something we want to do; exposing such details is a bad idea at this stage anyway
          Q_INVOKABLE QVector3D lookAt(const QVector3D &target);
          Q_INVOKABLE QVector3D matrixToEuler(const QMatrix4x4 &matrix); -> the new engine has no straightforward enablers to implement this
          Q_INVOKABLE QString getParent(const QString &handle); -> this function is bogus anyway, one can just write "whatever.parent" in handle instead
      

      This breaks the two behavior scripts we ship (and TennisGame of course).

      The proposal is to live with this in 2.0 and revisit these when the overall API story gets improved, and remove the two scripts in 2.0.

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        # Subject Branch Project Status CR V

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            tuliniemi Jere Tuliniemi
            lagocs Laszlo Agocs
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