ported the University CGI demo from WINDOWS + GLUT + GLEW + GLU + OpenGL 4 to LINUX WAYLAND + EGL + GLES 2 with minimal cuts

GL_STUFF/HEADERS/CURVES/NURBS.hpp

@@ -0,0 +1,28 @@
+#pragma once
+#include "./Curve.hpp"
+
+enum class NURBSType {
+	BASIC,
+	CLAMPED,
+	CYCLIC
+};
+
+class NURBS : public Curve {
+private:
+	unsigned int order;
+	vector<float>* weights;
+	vector<unsigned int>* multiplicities;
+	vector<float>* derivativeBoundaries;
+	vector<glm::vec3>* derivativePoints;
+	vector<float>* derivativeWeghts;
+	glm::vec3 deBoor( float at, int index);
+	void preliminaryChecks();
+public:
+	NURBS( unsigned int order, vector<glm::vec3>* points, vector<float>* weights, vector<float>* boundaries, vector<unsigned int>* multiplicities);
+	unsigned int getOrder();
+	vector<float>* getWeights();
+	glm::vec3 evaluate(float at);
+	glm::vec3 derivate(float at);
+	float getLeftBound();
+	float getRightBound();
+};