add RenderDemo to CpuDemo.

Demos3/CpuDemos/rendering/RenderDemo.h

@@ -0,0 +1,36 @@
+
+#include "../CpuDemo.h"
+
+struct RenderDemo : public CpuDemo
+{
+	GLInstancingRenderer*   m_instancingRenderer;
+			
+	virtual void    initPhysics(const ConstructionInfo& ci);
+	
+	virtual void    exitPhysics();
+	
+	virtual void renderScene();
+	
+	virtual void clientMoveAndDisplay();
+	virtual const char* getName() {
+		return "RenderDemo";
+	}
+	virtual bool	mouseMoveCallback(float x,float y)
+	{
+		return false;
+	}
+	virtual bool	mouseButtonCallback(int button, int state, float x, float y)
+	{
+		return false;
+	}
+	virtual bool	keyboardCallback(int key, int state)
+	{
+		return false;
+	}
+
+	static CpuDemo* MyCreateFunc()
+	{
+		CpuDemo* demo = new RenderDemo;
+		return demo;
+	}
+};