ENH: Add API to access SSAO rendering pass in 3D views

Direct access to the rendering pass allows experimentation and troubleshooting.
jcfr · Mar 5, 2024 · 6b81ca2 · 6b81ca2
1 parent 5e831bc
commit 6b81ca2
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diff --git a/Libs/MRML/Widgets/qMRMLThreeDView.cxx b/Libs/MRML/Widgets/qMRMLThreeDView.cxx
@@ -653,3 +653,10 @@ void qMRMLThreeDView::setAmbientShadowsVolumeOpacityThreshold(double opacityThre
 
   d->ShadowsRenderPass->SetVolumeOpacityThreshold(opacityThreshold);
 }
+
+//------------------------------------------------------------------------------
+vtkSSAOPass* qMRMLThreeDView::ssaoPass()const
+{
+  Q_D(const qMRMLThreeDView);
+  return d->ShadowsRenderPass;
+}
diff --git a/Libs/MRML/Widgets/qMRMLThreeDView.h b/Libs/MRML/Widgets/qMRMLThreeDView.h
@@ -35,6 +35,7 @@ class vtkMRMLScene;
 class vtkMRMLThreeDViewInteractorStyle;
 class vtkMRMLViewNode;
 class vtkCollection;
+class vtkSSAOPass;
 
 /// \brief 3D view for view nodes.
 /// For performance reasons, the view block refreshes when the scene is in
@@ -116,6 +117,10 @@ class QMRML_WIDGETS_EXPORT qMRMLThreeDView : public ctkVTKRenderView
   double ambientShadowsSizeScale()const;
   double ambientShadowsVolumeOpacityThreshold()const;
 
+  /// Advanced option to directly access SSAO pass used to render the ambient shadows.
+  /// Intended for experimentation and troubleshooting only.
+  Q_INVOKABLE vtkSSAOPass* ssaoPass()const;
+
 public slots:
 
   /// Set the MRML \a scene that should be listened for events