Changed camera position and "zoom"

* Reduces perspective effects (e.g. on pulse amplitude)
* Also: added upper zoom boundary and improved lower bound

src/pulsaranimationwidget.cpp

@@ -94,8 +94,9 @@ PulsarAnimationWidget::PulsarAnimationWidget(QWidget *parent) :
 	// initial view settings
 	m_mouseAngleH = 90.0;
 	m_mouseAngleV = 30.0;
-	m_cameraZoom = 15.0;
-	m_cameraZoomLBound = 2.0;
+	m_cameraZoom = 150.0;
+	m_cameraZoomLBound = 10.0;
+	m_cameraZoomUBound = 4500.0;
 	m_mouseLastX = 0;
 	m_mouseLastY = 0;
 
@@ -235,7 +236,7 @@ void PulsarAnimationWidget::resizeGL(int w, int h)
 	glMatrixMode(GL_PROJECTION);
 	glLoadIdentity();
 
-	gluPerspective(45.0, (GLfloat)w / (GLfloat)h, 0.1, 500.0);
+	gluPerspective(4.5, (GLfloat)w / (GLfloat)h, 0.1, 5000.0);
 
 	glMatrixMode(GL_MODELVIEW);
 	glLoadIdentity();
@@ -491,6 +492,7 @@ void PulsarAnimationWidget::mouseMoveEvent(QMouseEvent *event)
 		if(m_mouseLastY != 0) {
 			m_cameraZoom -= (m_mouseLastY - event->y());
 			m_cameraZoom = m_cameraZoom >= m_cameraZoomLBound ? m_cameraZoom : m_cameraZoomLBound;
+			m_cameraZoom = m_cameraZoom >= m_cameraZoomUBound ? m_cameraZoomUBound : m_cameraZoom;
 		}
 
 		m_mouseLastY = event->y();

src/pulsaranimationwidget.h

@@ -118,6 +118,7 @@ private:
 	int m_mouseAngleV;
 	double m_cameraZoom;
 	double m_cameraZoomLBound;
+	double m_cameraZoomUBound;
 	double m_cameraPosX;
 	double m_cameraPosY;
 	double m_cameraPosZ;