FGFS-4.1/OpenSceneGraph
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Refactored AutoTransform so that it dynamically computes the rotation, scale and matrices during the cull traversal to enable usage in multi-view, multi-threaded applications

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Robert Osfield
2017-04-26 11:50:35 +01:00
parent c5b22f341a
commit 92092a56ae
3 changed files with 191 additions and 280 deletions
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21
include/osg/AutoTransform
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@@ -37,16 +37,14 @@ class OSG_EXPORT AutoTransform : public Transform
virtual const char* className() const { return "AutoTransform"; }
virtual const char* libraryName() const { return "osg"; }
virtual void accept(NodeVisitor& nv);
virtual AutoTransform* asAutoTransform() { return this; }
virtual const AutoTransform* asAutoTransform() const { return this; }
inline void setPosition(const Vec3d& pos) { _position = pos; _matrixDirty=true; dirtyBound(); }
inline void setPosition(const Vec3d& pos) { _position = pos; dirtyBound(); }
inline const Vec3d& getPosition() const { return _position; }
inline void setRotation(const Quat& quat) { _rotation = quat; _matrixDirty=true; dirtyBound(); }
inline void setRotation(const Quat& quat) { _rotation = quat; dirtyBound(); }
inline const Quat& getRotation() const { return _rotation; }
inline void setScale(double scale) { setScale(osg::Vec3(scale,scale,scale)); }
@@ -60,7 +58,7 @@ class OSG_EXPORT AutoTransform : public Transform
void setMaximumScale(double maximumScale) { _maximumScale = maximumScale; }
double getMaximumScale() const { return _maximumScale; }
inline void setPivotPoint(const Vec3d& pivot) { _pivotPoint = pivot; _matrixDirty=true; dirtyBound(); }
inline void setPivotPoint(const Vec3d& pivot) { _pivotPoint = pivot; dirtyBound(); }
inline const Vec3d& getPivotPoint() const { return _pivotPoint; }
@@ -91,7 +89,7 @@ class OSG_EXPORT AutoTransform : public Transform
/** Get the front face direction normal. */
inline const Vec3& getNormal() const { return _normal; }
void setAutoScaleToScreen(bool autoScaleToScreen) { _autoScaleToScreen = autoScaleToScreen; _matrixDirty=true; }
void setAutoScaleToScreen(bool autoScaleToScreen) { _autoScaleToScreen = autoScaleToScreen; }
bool getAutoScaleToScreen() const { return _autoScaleToScreen; }
@@ -120,21 +118,14 @@ class OSG_EXPORT AutoTransform : public Transform
mutable Quat _rotation;
mutable Vec3d _scale;
mutable bool _firstTimeToInitEyePoint;
mutable osg::Vec3 _previousEyePoint;
mutable osg::Vec3 _previousLocalUp;
mutable Viewport::value_type _previousWidth;
mutable Viewport::value_type _previousHeight;
mutable osg::Matrixd _previousProjection;
mutable osg::Vec3d _previousPosition;
double _minimumScale;
double _maximumScale;
double _autoScaleTransitionWidthRatio;
void computeMatrix() const;
osg::Matrixd computeMatrix(const osg::NodeVisitor* nv) const;
mutable bool _matrixDirty;
mutable bool _matrixInitalized;
mutable osg::Matrixd _cachedMatrix;
enum AxisAligned