improved performance using my own tga load function always instead of QImage

improved Profiler

QtMeshViewer/Source/MshFile.cpp

@@ -3,6 +3,8 @@
 #include "..\Header\OutputDevice.h"
 #include <QColor>
 
+#include "..\Header\Profiler.h"
+
 // helper function to save data from file to any variable type
 #define F2V(variableName) reinterpret_cast<char*>(&variableName)
 
@@ -278,7 +280,6 @@ void MshFile::analyseMatdChunks(std::list<ChunkHeader*>& chunkList)
 				curMat->flags[i] = (std::uint8_t)(flag << (7 - i)) >> 7;
 
 			curMat->transparent = curMat->flags[2] || curMat->flags[3] || curMat->flags[4] || curMat->flags[6] || curMat->rendertype == 4;
-
 		}
 
 		// texture 0
@@ -310,7 +311,6 @@ void MshFile::analyseMatdChunks(std::list<ChunkHeader*>& chunkList)
 
 			if (!m_materials->back().tx1d.isEmpty())
 				loadTexture(m_materials->back().texture1, m_filepath, m_materials->back().tx1d);
-
 		}
 
 		// texture 2
@@ -719,6 +719,7 @@ void MshFile::readUV(Segment * dataDestination, std::streampos position)
 void MshFile::loadTexture(QOpenGLTexture *& destination, QString filepath, QString& filename)
 {
 	bool loadSuccess(false);
+
 	QImage img = loadTga(filepath + "/" + filename, loadSuccess);
 
 	if (!loadSuccess)

QtMeshViewer/Source/OglViewerWidget.cpp

@@ -428,8 +428,12 @@ void OglViewerWidget::setAmbCoef(double value)
 void OglViewerWidget::setHeadlight(bool value)
 {
 	m_light.headlight = value;
-	if (m_lightOn)
+
+	if (m_lightOn && value)
+	{
+		updateLightPosition();
 		update();
+	}
 }
 
 void OglViewerWidget::setBackfaceCulling(bool value)