added more code to render my first scene; STILL WITH ERRORS

opengl_beginnings/resources/shaders/sphere.frag

@@ -0,0 +1,12 @@
+#version 330 core
+
+//in vec3 fragPos;
+//in vec3 fragNormal;
+
+out vec4 FragColor;
+
+void main()
+{
+//    FragColor = vec4(fragPos, 1.0);
+    FragColor = vec4(1.0, 1.0, 1.0 , 1.0);
+}