- added debug line drawing in gameengine (handy for debugging physics problems)

- added #ifdef for a visual studio 8 crashing problems
- added scaling and tolerances to triangle meshes

source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.cpp

@@ -401,6 +401,21 @@ void RAS_OpenGLRasterizer::ClearCachingInfo(void)
 
 void RAS_OpenGLRasterizer::EndFrame()
 {
+	//DrawDebugLines
+	glBegin(GL_LINES);
+	for (unsigned int i=0;i<m_debugLines.size();i++)
+	{
+		glColor4f(m_debugLines[i].m_color[0],m_debugLines[i].m_color[1],m_debugLines[i].m_color[2],1.f);
+		const MT_Scalar* fromPtr = &m_debugLines[i].m_from.x();
+		const MT_Scalar* toPtr= &m_debugLines[i].m_to.x();
+
+		glVertex3dv(fromPtr);
+		glVertex3dv(toPtr);
+	}
+	glEnd();
+
+	m_debugLines.clear();
+
 	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
 	m_2DCanvas->EndFrame();
 }	

source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLRasterizer.h

@@ -44,6 +44,13 @@ using namespace std;
 #include "RAS_MaterialBucket.h"
 #include "RAS_ICanvas.h"
 
+struct	OglDebugLine
+{
+	MT_Vector3	m_from;
+	MT_Vector3	m_to;
+	MT_Vector3	m_color;
+};
+
 /**
  * 3D rendering device context.
  */
@@ -226,6 +233,17 @@ public:
 					);
 	virtual void	SetPolygonOffset(float mult, float add);
 
+	virtual	void	DrawDebugLine(const MT_Vector3& from,const MT_Vector3& to,const MT_Vector3& color)
+	{
+		OglDebugLine line;
+		line.m_from = from;
+		line.m_to = to;
+		line.m_color = color;
+		m_debugLines.push_back(line);
+	}
+
+	std::vector <OglDebugLine>	m_debugLines;
+
 };
 
 #endif //__RAS_OPENGLRASTERIZER