Optimize render view port

- Fix the bad performance of view port manipulation
- Allow to view the mesh inside
- Fix environment light not enabled in image export
- Fix wireframe not follow the view port setting in image export

src/documentwindow.cpp

@@ -49,13 +49,6 @@
 #include "fileforever.h"
 #include "documentsaver.h"
 
-int DocumentWindow::m_modelRenderWidgetInitialX = 16;
-int DocumentWindow::m_modelRenderWidgetInitialY = 16;
-int DocumentWindow::m_modelRenderWidgetInitialSize = 128;
-int DocumentWindow::m_skeletonRenderWidgetInitialX = DocumentWindow::m_modelRenderWidgetInitialX + DocumentWindow::m_modelRenderWidgetInitialSize + 16;
-int DocumentWindow::m_skeletonRenderWidgetInitialY = DocumentWindow::m_modelRenderWidgetInitialY;
-int DocumentWindow::m_skeletonRenderWidgetInitialSize = DocumentWindow::m_modelRenderWidgetInitialSize;
-
 int DocumentWindow::m_autoRecovered = false;
 
 LogBrowser *g_logBrowser = nullptr;
@@ -327,14 +320,19 @@ DocumentWindow::DocumentWindow() :
     //connect(containerWidget, &GraphicsContainerWidget::containerSizeChanged, this, &DocumentWindow::updateInfoWidgetPosition);
 
     m_modelRenderWidget = new ModelWidget(containerWidget);
+    m_modelRenderWidget->setMoveAndZoomByWindow(false);
+    m_modelRenderWidget->move(0, 0);
     m_modelRenderWidget->setAttribute(Qt::WA_TransparentForMouseEvents);
-    m_modelRenderWidget->setMinimumSize(DocumentWindow::m_modelRenderWidgetInitialSize, DocumentWindow::m_modelRenderWidgetInitialSize);
-    m_modelRenderWidget->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
-    m_modelRenderWidget->move(DocumentWindow::m_modelRenderWidgetInitialX, DocumentWindow::m_modelRenderWidgetInitialY);
     m_modelRenderWidget->setMousePickRadius(m_document->mousePickRadius());
     if (!Preferences::instance().toonShading())
 		m_modelRenderWidget->toggleWireframe();
     m_modelRenderWidget->enableEnvironmentLight();
+    m_modelRenderWidget->disableCullFace();
+    m_modelRenderWidget->setEyePosition(QVector3D(0.0, 0.0, -4.0));
+    m_modelRenderWidget->setMoveToPosition(QVector3D(-0.5, -0.5, 0.0));
+    
+    connect(containerWidget, &GraphicsContainerWidget::containerSizeChanged,
+        m_modelRenderWidget, &ModelWidget::canvasResized);
     
     connect(m_modelRenderWidget, &ModelWidget::mouseRayChanged, m_document,
             [=](const QVector3D &nearPosition, const QVector3D &farPosition) {
@@ -752,18 +750,18 @@ DocumentWindow::DocumentWindow() :
 
     m_viewMenu = menuBar()->addMenu(tr("&View"));
 
-    auto isModelSitInVisibleArea = [](ModelWidget *modelWidget) {
-        QRect parentRect = QRect(QPoint(0, 0), modelWidget->parentWidget()->size());
-        return parentRect.contains(modelWidget->geometry().center());
-    };
+    //auto isModelSitInVisibleArea = [](ModelWidget *modelWidget) {
+    //    QRect parentRect = QRect(QPoint(0, 0), modelWidget->parentWidget()->size());
+    //    return parentRect.contains(modelWidget->geometry().center());
+    //};
 
-    m_resetModelWidgetPosAction = new QAction(tr("Show Model"), this);
-    connect(m_resetModelWidgetPosAction, &QAction::triggered, [=]() {
-        if (!isModelSitInVisibleArea(m_modelRenderWidget)) {
-            m_modelRenderWidget->move(DocumentWindow::m_modelRenderWidgetInitialX, DocumentWindow::m_modelRenderWidgetInitialY);
-        }
-    });
-    m_viewMenu->addAction(m_resetModelWidgetPosAction);
+    //m_resetModelWidgetPosAction = new QAction(tr("Show Model"), this);
+    //connect(m_resetModelWidgetPosAction, &QAction::triggered, [=]() {
+    //    if (!isModelSitInVisibleArea(m_modelRenderWidget)) {
+    //        m_modelRenderWidget->move(DocumentWindow::m_modelRenderWidgetInitialX, DocumentWindow::m_modelRenderWidgetInitialY);
+    //    }
+    //});
+    //m_viewMenu->addAction(m_resetModelWidgetPosAction);
 
     m_toggleWireframeAction = new QAction(tr("Toggle Wireframe"), this);
     connect(m_toggleWireframeAction, &QAction::triggered, [=]() {
@@ -800,9 +798,9 @@ DocumentWindow::DocumentWindow() :
     });
     m_viewMenu->addAction(m_toggleUvCheckAction);
 
-    connect(m_viewMenu, &QMenu::aboutToShow, [=]() {
-        m_resetModelWidgetPosAction->setEnabled(!isModelSitInVisibleArea(m_modelRenderWidget));
-    });
+    //connect(m_viewMenu, &QMenu::aboutToShow, [=]() {
+    //    m_resetModelWidgetPosAction->setEnabled(!isModelSitInVisibleArea(m_modelRenderWidget));
+    //});
     
     m_windowMenu = menuBar()->addMenu(tr("&Window"));
     
@@ -2160,6 +2158,11 @@ void DocumentWindow::exportImageToFilename(const QString &filename)
         offlineRender->setYRotation(m_modelRenderWidget->yRot());
         offlineRender->setZRotation(m_modelRenderWidget->zRot());
         offlineRender->setEyePosition(m_modelRenderWidget->eyePosition());
+        offlineRender->setMoveToPosition(m_modelRenderWidget->moveToPosition());
+        if (m_modelRenderWidget->isWireframeVisible())
+            offlineRender->enableWireframe();
+        if (m_modelRenderWidget->isEnvironmentLightEnabled())
+            offlineRender->enableEnvironmentLight();
         offlineRender->setRenderPurpose(0);
         QImage *normalMap = new QImage();
         QImage *depthMap = new QImage();

src/documentwindow.h

@@ -180,7 +180,7 @@ private:
     QAction *m_colorizeAsAutoAction;
     
     QMenu *m_viewMenu;
-    QAction *m_resetModelWidgetPosAction;
+    //QAction *m_resetModelWidgetPosAction;
     QAction *m_toggleWireframeAction;
     QAction *m_toggleUvCheckAction;
     QAction *m_toggleRotationAction;
@@ -220,12 +220,6 @@ private:
     
     AutoSaver *m_autoSaver = nullptr;
 public:
-    static int m_modelRenderWidgetInitialX;
-    static int m_modelRenderWidgetInitialY;
-    static int m_modelRenderWidgetInitialSize;
-    static int m_skeletonRenderWidgetInitialX;
-    static int m_skeletonRenderWidgetInitialY;
-    static int m_skeletonRenderWidgetInitialSize;
     static int m_autoRecovered;
 };
 

src/modelmeshbinder.cpp

@@ -68,6 +68,11 @@ void ModelMeshBinder::enableEnvironmentLight()
     m_environmentLightEnabled = true;
 }
 
+bool ModelMeshBinder::isEnvironmentLightEnabled()
+{
+    return m_environmentLightEnabled;
+}
+
 Model *ModelMeshBinder::fetchCurrentMesh()
 {
     QMutexLocker lock(&m_meshMutex);
@@ -262,7 +267,7 @@ void ModelMeshBinder::paint(ModelShaderProgram *program)
     program->setUniformValue(program->environmentSpecularMapIdLoc(), 4);
     program->setUniformValue(program->toonNormalMapIdLoc(), 5);
     program->setUniformValue(program->toonDepthMapIdLoc(), 6);
-    if (m_showWireframes) {
+    if (m_showWireframe) {
         if (m_renderEdgeVertexCount > 0) {
             QOpenGLVertexArrayObject::Binder vaoBinder(&m_vaoEdge);
 			QOpenGLFunctions *f = QOpenGLContext::currentContext()->functions();
@@ -392,19 +397,19 @@ void ModelMeshBinder::cleanup()
     m_toonDepthMap = nullptr;
 }
 
-void ModelMeshBinder::showWireframes()
+void ModelMeshBinder::showWireframe()
 {
-    m_showWireframes = true;
+    m_showWireframe = true;
 }
 
-void ModelMeshBinder::hideWireframes()
+void ModelMeshBinder::hideWireframe()
 {
-    m_showWireframes = false;
+    m_showWireframe = false;
 }
 
-bool ModelMeshBinder::isWireframesVisible()
+bool ModelMeshBinder::isWireframeVisible()
 {
-    return m_showWireframes;
+    return m_showWireframe;
 }
 
 void ModelMeshBinder::enableCheckUv()

src/modelmeshbinder.h

@@ -18,12 +18,13 @@ public:
     void initialize();
     void paint(ModelShaderProgram *program);
     void cleanup();
-    void showWireframes();
-    void hideWireframes();
-    bool isWireframesVisible();
+    void showWireframe();
+    void hideWireframe();
+    bool isWireframeVisible();
     void enableCheckUv();
     void disableCheckUv();
     void enableEnvironmentLight();
+    bool isEnvironmentLightEnabled();
     bool isCheckUvEnabled();
     void reloadMesh();
     void fetchCurrentToonNormalAndDepthMaps(QImage *normalMap, QImage *depthMap);
@@ -35,7 +36,7 @@ private:
     int m_renderEdgeVertexCount = 0;
     int m_renderToolVertexCount = 0;
     bool m_newMeshComing = false;
-    bool m_showWireframes = false;
+    bool m_showWireframe = false;
     bool m_hasTexture = false;
     QOpenGLTexture *m_texture = nullptr;
     bool m_hasNormalMap = false;

src/modeloffscreenrender.cpp

@@ -58,6 +58,16 @@ void ModelOffscreenRender::setEyePosition(const QVector3D &eyePosition)
 	m_eyePosition = eyePosition;
 }
 
+void ModelOffscreenRender::setMoveToPosition(const QVector3D &moveToPosition)
+{
+	m_moveToPosition = moveToPosition;
+}
+
+void ModelOffscreenRender::enableWireframe()
+{
+    m_isWireframeVisible = true;
+}
+
 void ModelOffscreenRender::setRenderPurpose(int purpose)
 {
     m_renderPurpose = purpose;
@@ -68,6 +78,11 @@ void ModelOffscreenRender::setToonShading(bool toonShading)
     m_toonShading = toonShading;
 }
 
+void ModelOffscreenRender::enableEnvironmentLight()
+{
+    m_isEnvironmentLightEnabled = true;
+}
+
 void ModelOffscreenRender::updateToonNormalAndDepthMaps(QImage *normalMap, QImage *depthMap)
 {
     delete m_normalMap;
@@ -124,7 +139,12 @@ QImage ModelOffscreenRender::toImage(const QSize &size)
         ModelShaderProgram *program = new ModelShaderProgram(isCoreProfile);
         ModelMeshBinder meshBinder;
         meshBinder.initialize();
-        meshBinder.hideWireframes();
+        if (m_isWireframeVisible)
+            meshBinder.showWireframe();
+        else
+            meshBinder.hideWireframe();
+        if (m_isEnvironmentLightEnabled)
+            meshBinder.enableEnvironmentLight();
         if (nullptr != m_normalMap && nullptr != m_depthMap) {
             meshBinder.updateToonNormalAndDepthMaps(m_normalMap, m_depthMap);
             m_normalMap = nullptr;
@@ -135,7 +155,7 @@ QImage ModelOffscreenRender::toImage(const QSize &size)
         m_context->functions()->glEnable(GL_BLEND);
         m_context->functions()->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
         m_context->functions()->glEnable(GL_DEPTH_TEST);
-        m_context->functions()->glEnable(GL_CULL_FACE);
+        //m_context->functions()->glEnable(GL_CULL_FACE);
 #ifdef GL_LINE_SMOOTH
         m_context->functions()->glEnable(GL_LINE_SMOOTH);
 #endif
@@ -146,6 +166,7 @@ QImage ModelOffscreenRender::toImage(const QSize &size)
         world.rotate(m_zRot / 16.0f, 0, 0, 1);
 
         projection.setToIdentity();
+        projection.translate(m_moveToPosition.x(), m_moveToPosition.y(), m_moveToPosition.z());
         projection.perspective(45.0f, GLfloat(size.width()) / size.height(), 0.01f, 100.0f);
         
         camera.setToIdentity();

src/modeloffscreenrender.h

@@ -20,8 +20,11 @@ public:
     void setYRotation(int angle);
     void setZRotation(int angle);
     void setEyePosition(const QVector3D &eyePosition);
+    void setMoveToPosition(const QVector3D &moveToPosition);
     void setRenderPurpose(int purpose);
     void setRenderThread(QThread *thread);
+    void enableWireframe();
+    void enableEnvironmentLight();
     void updateMesh(Model *mesh);
     void updateToonNormalAndDepthMaps(QImage *normalMap, QImage *depthMap);
     void setToonShading(bool toonShading);
@@ -31,6 +34,7 @@ private:
     int m_yRot = 0;
     int m_zRot = 0;
     QVector3D m_eyePosition;
+    QVector3D m_moveToPosition;
     int m_renderPurpose = 0;
     QOpenGLContext *m_context = nullptr;
     QOpenGLFramebufferObject *m_renderFbo = nullptr;
@@ -38,6 +42,8 @@ private:
     QImage *m_normalMap = nullptr;
     QImage *m_depthMap = nullptr;
     bool m_toonShading = false;
+    bool m_isWireframeVisible = false;
+    bool m_isEnvironmentLightEnabled = false;
 };
 
 #endif

src/modelwidget.cpp

@@ -61,6 +61,18 @@ const QVector3D &ModelWidget::eyePosition()
 	return m_eyePosition;
 }
 
+const QVector3D &ModelWidget::moveToPosition()
+{
+    return m_moveToPosition;
+}
+
+void ModelWidget::setEyePosition(const QVector3D &eyePosition)
+{
+    m_eyePosition = eyePosition;
+    emit eyePositionChanged(m_eyePosition);
+    update();
+}
+
 void ModelWidget::reRender()
 {
     emit renderParametersChanged();
@@ -174,13 +186,24 @@ void ModelWidget::initializeGL()
     m_program->release();
 }
 
+void ModelWidget::disableCullFace()
+{
+    m_enableCullFace = false;
+}
+
+void ModelWidget::setMoveToPosition(const QVector3D &moveToPosition)
+{
+    m_moveToPosition = moveToPosition;
+}
+
 void ModelWidget::paintGL()
 {
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
     glEnable(GL_BLEND);
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
     glEnable(GL_DEPTH_TEST);
-    glEnable(GL_CULL_FACE);
+    if (m_enableCullFace)
+        glEnable(GL_CULL_FACE);
 #ifdef GL_LINE_SMOOTH
     glEnable(GL_LINE_SMOOTH);
 #endif
@@ -227,12 +250,18 @@ void ModelWidget::paintGL()
     m_program->release();
 }
 
+void ModelWidget::updateProjectionMatrix()
+{
+    m_projection.setToIdentity();
+    m_projection.translate(m_moveToPosition.x(), m_moveToPosition.y(), m_moveToPosition.z());
+    m_projection.perspective(45.0f, GLfloat(width()) / height(), 0.01f, 100.0f);
+}
+
 void ModelWidget::resizeGL(int w, int h)
 {
 	m_widthInPixels = w * window()->devicePixelRatio();
 	m_heightInPixels = h * window()->devicePixelRatio();
-    m_projection.setToIdentity();
-    m_projection.perspective(45.0f, GLfloat(w) / h, 0.01f, 100.0f);
+    updateProjectionMatrix();
     emit renderParametersChanged();
 }
 
@@ -251,19 +280,29 @@ std::pair<QVector3D, QVector3D> ModelWidget::screenPositionToMouseRay(const QPoi
 
 void ModelWidget::toggleWireframe()
 {
-    if (m_meshBinder.isWireframesVisible())
-        m_meshBinder.hideWireframes();
+    if (m_meshBinder.isWireframeVisible())
+        m_meshBinder.hideWireframe();
     else
-        m_meshBinder.showWireframes();
+        m_meshBinder.showWireframe();
     update();
 }
 
+bool ModelWidget::isWireframeVisible()
+{
+    return m_meshBinder.isWireframeVisible();
+}
+
 void ModelWidget::enableEnvironmentLight()
 {
     m_meshBinder.enableEnvironmentLight();
     update();
 }
 
+bool ModelWidget::isEnvironmentLightEnabled()
+{
+    return m_meshBinder.isEnvironmentLightEnabled();
+}
+
 void ModelWidget::toggleRotation()
 {
     if (nullptr != m_rotationTimer) {
@@ -329,6 +368,11 @@ bool ModelWidget::inputMouseReleaseEventFromOtherWidget(QMouseEvent *event)
     return false;
 }
 
+void ModelWidget::canvasResized()
+{
+    resize(parentWidget()->size());
+}
+
 bool ModelWidget::inputMouseMoveEventFromOtherWidget(QMouseEvent *event)
 {
     QPoint pos = convertInputPosFromOtherWidget(event);
@@ -349,10 +393,27 @@ bool ModelWidget::inputMouseMoveEventFromOtherWidget(QMouseEvent *event)
             (m_moveStarted && (event->buttons() & Qt::LeftButton))) {
         if (QGuiApplication::queryKeyboardModifiers().testFlag(Qt::ShiftModifier)) {
             if (m_moveStarted) {
-                QRect rect = m_moveStartGeometry;
-                QPoint posInParent = mapToParent(pos);
-                rect.translate(posInParent.x() - m_moveStartPos.x(), posInParent.y() - m_moveStartPos.y());
-                setGeometry(rect);
+                if (m_moveAndZoomByWindow) {
+                    QPoint posInParent = mapToParent(pos);
+                    QRect rect = m_moveStartGeometry;
+                    rect.translate(posInParent.x() - m_moveStartPos.x(), posInParent.y() - m_moveStartPos.y());
+                    setGeometry(rect);
+                } else {
+                    m_moveToPosition.setX(m_moveToPosition.x() + (float)2 * dx / width());
+                    m_moveToPosition.setY(m_moveToPosition.y() + (float)2 * -dy / height());
+                    if (m_moveToPosition.x() < -1.0)
+                        m_moveToPosition.setX(-1.0);
+                    if (m_moveToPosition.x() > 1.0)
+                        m_moveToPosition.setX(1.0);
+                    if (m_moveToPosition.y() < -1.0)
+                        m_moveToPosition.setY(-1.0);
+                    if (m_moveToPosition.y() > 1.0)
+                        m_moveToPosition.setY(1.0);
+                    updateProjectionMatrix();
+                    emit moveToPositionChanged(m_moveToPosition);
+                    emit renderParametersChanged();
+                    update();
+                }
             }
         } else {
             setXRotation(m_xRot + 8 * dy);
@@ -394,22 +455,34 @@ bool ModelWidget::inputWheelEventFromOtherWidget(QWheelEvent *event)
 
 void ModelWidget::zoom(float delta)
 {
-    QMargins margins(delta, delta, delta, delta);
-    if (0 == m_modelInitialHeight) {
-        m_modelInitialHeight = height();
-    } else {
-        float ratio = (float)height() / m_modelInitialHeight;
-        if (ratio <= m_minZoomRatio) {
-            if (delta < 0)
-                return;
-        } else if (ratio >= m_maxZoomRatio) {
-            if (delta > 0)
-                return;
+    if (m_moveAndZoomByWindow) {
+        QMargins margins(delta, delta, delta, delta);
+        if (0 == m_modelInitialHeight) {
+            m_modelInitialHeight = height();
+        } else {
+            float ratio = (float)height() / m_modelInitialHeight;
+            if (ratio <= m_minZoomRatio) {
+                if (delta < 0)
+                    return;
+            } else if (ratio >= m_maxZoomRatio) {
+                if (delta > 0)
+                    return;
+            }
         }
+        setGeometry(geometry().marginsAdded(margins));
+        emit renderParametersChanged();
+        update();
+        return;
+    } else {
+        m_eyePosition += QVector3D(0, 0, m_eyePosition.z() * (delta > 0 ? -0.1 : 0.1));
+        if (m_eyePosition.z() < -15)
+            m_eyePosition.setZ(-15);
+        else if (m_eyePosition.z() > -0.1)
+            m_eyePosition.setZ(-0.1);
+        emit eyePositionChanged(m_eyePosition);
+        emit renderParametersChanged();
+        update();
     }
-    setGeometry(geometry().marginsAdded(margins));
-    emit renderParametersChanged();
-	update();
 }
 
 void ModelWidget::setMousePickTargetPositionInModelSpace(QVector3D position)
@@ -467,6 +540,11 @@ void ModelWidget::enableMousePicking(bool enabled)
     m_mousePickingEnabled = enabled;
 }
 
+void ModelWidget::setMoveAndZoomByWindow(bool byWindow)
+{
+    m_moveAndZoomByWindow = byWindow;
+}
+
 void ModelWidget::mousePressEvent(QMouseEvent *event)
 {
     inputMousePressEventFromOtherWidget(event);

src/modelwidget.h

@@ -24,6 +24,11 @@ signals:
     void mouseReleased();
     void addMouseRadius(float radius);
     void renderParametersChanged();
+    void xRotationChanged(int angle);
+    void yRotationChanged(int angle);
+    void zRotationChanged(int angle);
+    void eyePositionChanged(const QVector3D &eyePosition);
+    void moveToPositionChanged(const QVector3D &moveToPosition);
 public:
     ModelWidget(QWidget *parent = 0);
     ~ModelWidget();
@@ -39,12 +44,17 @@ public:
     void updateMesh(Model *mesh);
     void setGraphicsFunctions(SkeletonGraphicsFunctions *graphicsFunctions);
     void toggleWireframe();
+    bool isWireframeVisible();
     void toggleRotation();
     void toggleUvCheck();
     void enableEnvironmentLight();
+    bool isEnvironmentLightEnabled();
     void enableMove(bool enabled);
     void enableZoom(bool enabled);
     void enableMousePicking(bool enabled);
+    void setMoveAndZoomByWindow(bool byWindow);
+    void disableCullFace();
+    void setMoveToPosition(const QVector3D &moveToPosition);
     bool inputMousePressEventFromOtherWidget(QMouseEvent *event);
     bool inputMouseMoveEventFromOtherWidget(QMouseEvent *event);
     bool inputWheelEventFromOtherWidget(QWheelEvent *event);
@@ -58,15 +68,13 @@ public slots:
     void setXRotation(int angle);
     void setYRotation(int angle);
     void setZRotation(int angle);
+    void setEyePosition(const QVector3D &eyePosition);
     void cleanup();
     void zoom(float delta);
     void setMousePickTargetPositionInModelSpace(QVector3D position);
     void setMousePickRadius(float radius);
     void reRender();
-signals:
-    void xRotationChanged(int angle);
-    void yRotationChanged(int angle);
-    void zRotationChanged(int angle);
+    void canvasResized();
 protected:
     void initializeGL() override;
     void paintGL() override;
@@ -80,6 +88,7 @@ public:
     int yRot();
     int zRot();
     const QVector3D &eyePosition();
+    const QVector3D &moveToPosition();
 private:
     int m_xRot;
     int m_yRot;
@@ -107,7 +116,11 @@ private:
     QTimer *m_rotationTimer = nullptr;
     int m_widthInPixels = 0;
     int m_heightInPixels = 0;
+    QVector3D m_moveToPosition;
+    bool m_moveAndZoomByWindow = true;
+    bool m_enableCullFace = true;
     std::pair<QVector3D, QVector3D> screenPositionToMouseRay(const QPoint &screenPosition);
+    void updateProjectionMatrix();
 public:
     static int m_defaultXRotation;
     static int m_defaultYRotation;

src/normalanddepthmapsgenerator.cpp

@@ -34,6 +34,7 @@ ModelOffscreenRender *NormalAndDepthMapsGenerator::createOfflineRender(ModelWidg
     offlineRender->setYRotation(modelWidget->yRot());
     offlineRender->setZRotation(modelWidget->zRot());
     offlineRender->setEyePosition(modelWidget->eyePosition());
+    offlineRender->setMoveToPosition(modelWidget->moveToPosition());
     offlineRender->setRenderPurpose(purpose);
     return offlineRender;
 }