Improve vector visualization

Author: ruberith

GUI/OpenGL/MiniGL.cpp

@@ -118,10 +118,10 @@ void MiniGL::coordinateSystem()
 
 void MiniGL::drawVector(const Vector3r &a, const Vector3r &b, const float w, float *color)
 {
-	float thickness = 0.001f * w;
+	float thickness = 0.005f * w;
 
     // Draw a thick line as a cylinder with constant color.
-	drawCylinder(a, b, color, thickness, 8, false);
+	drawCylinder(a, b, color, thickness, 32, false);
 }
 
 void MiniGL::drawCylinder(const Vector3r &a, const Vector3r &b, const float *color, const float radius, const unsigned int subdivisions, const bool lighting)
@@ -465,7 +465,7 @@ void MiniGL::init(const int width, const int height, const char *name, const boo
 
 	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
 	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
-	glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
+	glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_TRUE);
 	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
 	glfwWindowHint(GLFW_SAMPLES, 4);