Added Eigen, replacing ZMath

src/render/Renderer.h

@@ -1,13 +1,26 @@
 #pragma once
 
 #include "OpenGlExtensions.h"
-#include "utils/ZLMath.h"
 #include <exception>
 #include <stdexcept>
 #include "ShaderManager.h"
+#include <Eigen/Dense>
 
 namespace ZL {
 
+	using Eigen::Vector2f;
+	using Eigen::Vector3f;
+	using Eigen::Vector4f;
+
+	using Eigen::Matrix3f;
+	using Eigen::Matrix4f;
+
+	Matrix4f MakeOrthoMatrix(float width, float height, float zNear, float zFar);
+	Matrix4f MakeOrthoMatrix(float xmin, float xmax, float ymin, float ymax, float zNear, float zFar);
+
+	Matrix4f MakePerspectiveMatrix(float fovY, float aspectRatio, float zNear, float zFar);
+
+
 	constexpr size_t CONST_MATRIX_STACK_SIZE = 64;
 
 	class VBOHolder {