+ add new render type to 3d viewer

src/Gui/MouseSelection.cpp

@@ -55,8 +55,6 @@ void AbstractMouseSelection::grabMouseModel(Gui::View3DInventorViewer* viewer)
 {
     _pcView3D = viewer;
     m_cPrevCursor = _pcView3D->getWidget()->cursor();
-    m_antiAliasing = (int)_pcView3D->getAntiAliasingMode();
-    _pcView3D->setAntiAliasingMode(View3DInventorViewer::None);
 
     // do initialization of your mousemodel
     initialize();
@@ -69,7 +67,6 @@ void AbstractMouseSelection::releaseMouseModel()
         terminate();
 
         _pcView3D->getWidget()->setCursor(m_cPrevCursor);
-        _pcView3D->setAntiAliasingMode(View3DInventorViewer::AntiAliasing(m_antiAliasing));
         _pcView3D = 0;
     }
 }
@@ -264,14 +261,14 @@ void PolyPickerSelection::initialize()
     polyline.setColor(0.0,0.0,1.0,1.0);
     
     _pcView3D->addGraphicsItem(&polyline);
-    _pcView3D->setRenderFramebuffer(true);
+    _pcView3D->setRenderType(View3DInventorViewer::Framebuffer);
     _pcView3D->redraw();
 }
 
 void PolyPickerSelection::terminate()
 {
     _pcView3D->removeGraphicsItem(&polyline);
-    _pcView3D->setRenderFramebuffer(false);
+    _pcView3D->setRenderType(View3DInventorViewer::Native);
     _pcView3D->redraw();
 }
 
@@ -570,7 +567,7 @@ void RubberbandSelection::initialize()
     rubberband.setColor(1.0, 1.0, 0.0, 0.5);
     _pcView3D->addGraphicsItem(&rubberband);
     if (QGLFramebufferObject::hasOpenGLFramebufferObjects()) {
-        _pcView3D->setRenderFramebuffer(true);
+        _pcView3D->setRenderType(View3DInventorViewer::Image);
     }
     _pcView3D->redraw();
 }
@@ -579,7 +576,7 @@ void RubberbandSelection::terminate()
 {
     _pcView3D->removeGraphicsItem(&rubberband);
     if (QGLFramebufferObject::hasOpenGLFramebufferObjects()) {
-        _pcView3D->setRenderFramebuffer(false);
+        _pcView3D->setRenderType(View3DInventorViewer::Native);
     }
     _pcView3D->redraw();
 }

src/Gui/MouseSelection.h

@@ -98,7 +98,6 @@ protected:
     QCursor m_cPrevCursor;
     int  m_iXold, m_iYold;
     int  m_iXnew, m_iYnew;
-    int m_antiAliasing;
     SbBool m_bInner;
     SbBool mustRedraw;
     std::vector<SbVec2s> _clPoly;

src/Gui/View3DInventorViewer.cpp

@@ -297,7 +297,7 @@ public:
 // *************************************************************************
 View3DInventorViewer::View3DInventorViewer(QWidget* parent, const QGLWidget* sharewidget)
     : Quarter::SoQTQuarterAdaptor(parent, sharewidget), editViewProvider(0), navigation(0),
-      framebuffer(0), axisCross(0), axisGroup(0), editing(FALSE), redirected(FALSE),
+      renderType(Native), framebuffer(0), axisCross(0), axisGroup(0), editing(FALSE), redirected(FALSE),
       allowredir(FALSE), overrideMode("As Is"), _viewerPy(0)
 {
     init();
@@ -305,7 +305,7 @@ View3DInventorViewer::View3DInventorViewer(QWidget* parent, const QGLWidget* sha
 
 View3DInventorViewer::View3DInventorViewer(const QGLFormat& format, QWidget* parent, const QGLWidget* sharewidget)
     : Quarter::SoQTQuarterAdaptor(format, parent, sharewidget), editViewProvider(0), navigation(0),
-      framebuffer(0), axisCross(0), axisGroup(0), editing(FALSE), redirected(FALSE),
+      renderType(Native), framebuffer(0), axisCross(0), axisGroup(0), editing(FALSE), redirected(FALSE),
       allowredir(FALSE), overrideMode("As Is"), _viewerPy(0)
 {
     init();
@@ -1186,25 +1186,45 @@ void View3DInventorViewer::clearGraphicsItems()
     this->graphicsItems.clear();
 }
 
-void View3DInventorViewer::setRenderFramebuffer(const SbBool enable)
+void View3DInventorViewer::setRenderType(const RenderType type)
 {
-    if(!enable) {
+    renderType = type;
+
+    glImage = QImage();
+    if (type != Framebuffer) {
         delete framebuffer;
         framebuffer = 0;
     }
-    else if(!this->framebuffer) {
+
+    switch (type) {
+    case Native:
+        break;
+    case Framebuffer:
+        if (!framebuffer) {
             const SbViewportRegion vp = this->getSoRenderManager()->getViewportRegion();
             SbVec2s size = vp.getViewportSizePixels();
 
-        static_cast<QGLWidget*>(this->viewport())->makeCurrent();
+            QGLWidget* gl = static_cast<QGLWidget*>(this->viewport());
-        this->framebuffer = new QGLFramebufferObject(size[0],size[1],QGLFramebufferObject::Depth);
+            gl->makeCurrent();
-        renderToFramebuffer(this->framebuffer);
+            framebuffer = new QGLFramebufferObject(size[0],size[1],QGLFramebufferObject::Depth);
+            renderToFramebuffer(framebuffer);
         }
-}
+        break;
-
+    case Image:
-SbBool View3DInventorViewer::isRenderFramebuffer() const
         {
-    return this->framebuffer != 0;
+            const SbViewportRegion vp = this->getSoRenderManager()->getViewportRegion();
+            SbVec2s size = vp.getViewportSizePixels();
+
+            QGLWidget* gl = static_cast<QGLWidget*>(this->viewport());
+            gl->makeCurrent();
+            int w = gl->width();
+            int h = gl->height();
+            QImage img(QSize(w,h), QImage::Format_RGB32);
+            glReadPixels(0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, img.bits());
+            glImage = img;
+        }
+        break;
+    }
 }
 
 void View3DInventorViewer::renderToFramebuffer(QGLFramebufferObject* fbo)
@@ -1240,10 +1260,17 @@ void View3DInventorViewer::renderToFramebuffer(QGLFramebufferObject* fbo)
 
 void View3DInventorViewer::actualRedraw()
 {
-    if(this->framebuffer)
+    switch (renderType) {
-        renderFramebuffer();
+    case Native:
-    else
         renderScene();
+        break;
+    case Framebuffer:
+        renderFramebuffer();
+        break;
+    case Image:
+        renderGLImage();
+        break;
+    }
 }
 
 void View3DInventorViewer::renderFramebuffer()
@@ -1285,6 +1312,32 @@ void View3DInventorViewer::renderFramebuffer()
     glEnable(GL_DEPTH_TEST);
 }
 
+void View3DInventorViewer::renderGLImage()
+{
+    const SbViewportRegion vp = this->getSoRenderManager()->getViewportRegion();
+    SbVec2s size = vp.getViewportSizePixels();
+
+    glDisable(GL_LIGHTING);
+    glViewport(0, 0, size[0], size[1]);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    glDisable(GL_DEPTH_TEST);
+
+    glClear(GL_COLOR_BUFFER_BIT);
+    glDrawPixels(glImage.width(),glImage.height(),GL_RGBA,GL_UNSIGNED_BYTE,glImage.bits());
+
+    printDimension();
+    navigation->redraw();
+
+    for (std::list<GLGraphicsItem*>::iterator it = this->graphicsItems.begin(); it != this->graphicsItems.end(); ++it)
+        (*it)->paintGL();
+
+    glEnable(GL_LIGHTING);
+    glEnable(GL_DEPTH_TEST);
+}
+
 //#define ENABLE_GL_DEPTH_RANGE
 // The calls of glDepthRange inside renderScene() causes problems with transparent objects
 // so that's why it is disabled now: http://forum.freecadweb.org/viewtopic.php?f=3&t=6037&hilit=transparency
@@ -2640,66 +2693,6 @@ void View3DInventorViewer::turnDeltaDimensionsOff()
     static_cast<SoSwitch*>(dimensionRoot->getChild(1))->whichChild = SO_SWITCH_NONE;
 }
 
-void View3DInventorViewer::setAntiAliasingMode(View3DInventorViewer::AntiAliasing mode)
-{
-    int buffers = 1;
-    SbBool smoothing = false;
-
-    switch(mode) {
-    case Smoothing:
-        smoothing = true;
-        break;
-
-    case MSAA2x:
-        buffers = 2;
-        break;
-
-    case MSAA4x:
-        buffers = 4;
-        break;
-
-    case MSAA8x:
-        buffers = 8;
-        break;
-
-    case None:
-    default:
-        break;
-    };
-
-    if (getSoRenderManager()->getGLRenderAction()->isSmoothing() != smoothing)
-        getSoRenderManager()->getGLRenderAction()->setSmoothing(smoothing);
-
-    if (static_cast<QGLWidget*>(this->viewport())->format().samples() != buffers)
-        Base::Console().Message("To change multisampling settings please close and open the 3d view again\n");
-
-}
-
-View3DInventorViewer::AntiAliasing View3DInventorViewer::getAntiAliasingMode() const
-{
-    if(getSoRenderManager()->getGLRenderAction()->isSmoothing())
-        return Smoothing;
-
-    int buffers = static_cast<QGLWidget*>(this->viewport())->format().samples();
-
-    switch(buffers) {
-    case 1:
-        return None;
-
-    case 2:
-        return MSAA2x;
-
-    case 4:
-        return MSAA4x;
-
-    case 8:
-        return MSAA8x;
-
-    default:
-        return None;
-    };
-}
-
 PyObject *View3DInventorViewer::getPyObject(void)
 {
     if (!_viewerPy)

src/Gui/View3DInventorViewer.h

@@ -33,8 +33,9 @@
 #include <Inventor/nodes/SoEventCallback.h>
 #include <Inventor/nodes/SoSwitch.h>
 #include <Inventor/SbRotation.h>
-#include "Gui/Quarter/SoQTQuarterAdaptor.h"
+#include <Gui/Quarter/SoQTQuarterAdaptor.h>
 #include <QCursor>
+#include <QImage>
 
 #include <Gui/Selection.h>
 
@@ -120,6 +121,16 @@ public:
     };
     //@}
 
+    /** @name Render mode
+      */
+    //@{
+    enum RenderType {
+        Native,
+        Framebuffer,
+        Image
+    };
+    //@}
+
     View3DInventorViewer (QWidget *parent, const QGLWidget* sharewidget = 0);
     View3DInventorViewer (const QGLFormat& format, QWidget *parent, const QGLWidget* sharewidget = 0);
     virtual ~View3DInventorViewer();
@@ -151,8 +162,7 @@ public:
     void setFeedbackSize(const int size);
     int getFeedbackSize(void) const;
 
-    void setRenderFramebuffer(const SbBool enable);
+    void setRenderType(const RenderType type);
-    SbBool isRenderFramebuffer() const;
     void renderToFramebuffer(QGLFramebufferObject*);
 
     virtual void setViewing(SbBool enable);
@@ -294,15 +304,6 @@ public:
     void addDimensionDelta(SoNode *node);
     //@}
 
-    /** @name Anti-Aliasing Control
-     * the anti-aliasing mode is controled by parameters through view3dinventor.
-     * don't call them directly. Instead set the parameter View/AntiAliasing.
-     */
-    //@{
-    void setAntiAliasingMode(AntiAliasing mode);
-    AntiAliasing getAntiAliasingMode() const;
-    //@}
-
     /**
      * Set the camera's orientation. If isAnimationEnabled() returns
      * \a TRUE the reorientation is animated, otherwise its directly
@@ -354,6 +355,7 @@ public:
 protected:
     void renderScene();
     void renderFramebuffer();
+    void renderGLImage();
     void animatedViewAll(int steps, int ms);
     virtual void actualRedraw(void);
     virtual void setSeekMode(SbBool enable);
@@ -394,7 +396,10 @@ private:
     SoEventCallback* pEventCallback;
     NavigationStyle* navigation;
     SoFCUnifiedSelection* selectionRoot;
+
+    RenderType renderType;
     QGLFramebufferObject* framebuffer;
+    QImage glImage;
     SoSwitch *dimensionRoot;
 
     // small axis cross in the corner

src/Mod/Sandbox/Gui/Overlay.cpp

@@ -340,7 +340,7 @@ Rubberband(Gui::View3DInventorViewer* v) :view(v)
     rubberBandCorner1.setY(200);
     rubberBandCorner2.setX(800);
     rubberBandCorner2.setY(600);
-    v->setRenderFramebuffer(true);
+    v->setRenderType(Gui::View3DInventorViewer::Image);
     v->getSoRenderManager()->scheduleRedraw();
 }
 

src/Mod/Sketcher/Gui/ViewProviderSketch.cpp

@@ -753,7 +753,7 @@ bool ViewProviderSketch::mouseButtonPressed(int Button, bool pressed, const SbVe
                     
                     //disable framebuffer drawing in viewer
                     if (Gui::Application::Instance->activeDocument()->getActiveView()) {
-                        static_cast<Gui::View3DInventor *>(Gui::Application::Instance->activeDocument()->getActiveView())->getViewer()->setRenderFramebuffer(false);
+                        static_cast<Gui::View3DInventor *>(Gui::Application::Instance->activeDocument()->getActiveView())->getViewer()->setRenderType(Gui::View3DInventorViewer::Native);
                     }
                     
                     // a redraw is required in order to clear the rubberband
@@ -1085,7 +1085,7 @@ bool ViewProviderSketch::mouseMove(const SbVec2s &cursorPos, Gui::View3DInventor
         case STATUS_SKETCH_StartRubberBand: {
             Mode = STATUS_SKETCH_UseRubberBand;
             rubberband->setWorking(true);
-            viewer->setRenderFramebuffer(true);
+            viewer->setRenderType(Gui::View3DInventorViewer::Framebuffer);
             return true;
         }
         case STATUS_SKETCH_UseRubberBand: {