mv rotation speed prefactor

Img3D/View/Camera.cpp

@@ -98,11 +98,8 @@ void Camera::endTransform(bool keep)
     set();
 }
 
-void Camera::horizontalTurn(float angle)
+void Camera::horizontalTurn(float theta)
 {
-    const float theta = angle * static_cast<float>(M_PI / 180.0); // in radians
-
-    // Horizontal camera turn for 3D axes
     const CameraParams initial_pos3DAxes = getPos3DAxes();
 
     const F3 v_eye3DAxes = initial_pos3DAxes.eye; // camera's position vector
@@ -142,11 +139,8 @@ void Camera::horizontalTurn(float angle)
     endTransform(true);
 }
 
-void Camera::verticalTurn(float angle)
+void Camera::verticalTurn(float theta)
 {
-    const float theta = angle * static_cast<float>(M_PI / 180.0); // in radians
-
-    // Vertical camera turn for 3D axes
     const CameraParams initial_pos3DAxes = getPos3DAxes();
 
     const F3 v_eye3DAxes = initial_pos3DAxes.eye; // camera's position vector

Img3D/View/Camera.h

@@ -49,8 +49,8 @@ public:
     const F3 lightPosRotated() const { return lightPosRotated1; }
 
     // Flying Camera implementation (similar to Blender's camera system)
-    void horizontalTurn(float angle);
-    void verticalTurn(float angle);
+    void horizontalTurn(float theta);
+    void verticalTurn(float theta);
 
 signals:
     void updated(Camera const&);

Img3D/View/Canvas.cpp

@@ -42,9 +42,6 @@ float ZoomOutScale()
     return 0.8f;
 }
 
-const float rot_speed_h = 0.4f; // camera rotation speed in horizontal direction
-const float rot_speed_v = 0.4f; // camera rotation speed in vertical direction
-
 // Default camera position in accordance with RealspaceBuilder.h
 const float cameraDefaultPosY = -200.0f; // default camera position on Y axis
 const float cameraDefaultPosZ = 120.0f;  // default camera position on Z axis
@@ -230,11 +227,11 @@ void Canvas::mouseMoveEvent(QMouseEvent* e)
         if (!isInitialized())
             break;
 
-        // -ve for consistency with Blender
+        // minus sign for consistency with Blender; arbitrary prefactor for decent rotation speed
         if (delta_x != 0)
-            m_camera->horizontalTurn(-delta_x * rot_speed_h);
+            m_camera->horizontalTurn(-0.007f*delta_x);
         if (delta_y != 0)
-            m_camera->verticalTurn(-delta_y * rot_speed_v);
+            m_camera->verticalTurn(-0.007f*delta_y);
 
         m_lastMouseCoords = e->pos();
         break;