a) Refer to the OpenGL code fragment in Figure 3 below: qlBegin (GL POLYGON) glVertex3f(-0.7f, -0.5f, 0.0f); glVertex 3f (0.7f, -0.5f, 0.0f); gl Vertex3F(0.4, 0.5f, 0.0f); glVertex 3 (-0.45, 0.5f, 0.0f); glEnd(); Figure 3: OpenGL code fragment i. What is the shape of the polygon drawn using the code fragment in Figure 3? (2 marks) it. Add codes so that each vertex has different colour. (4 marks) ili. In OpenGL, we can associate a color with each vertex. What happen if the endpoints of a line segment have different colors assigned to them? (3 marks) b) Explain how any sequence of rotations and translations can be replaced by a single rotation about the origin followed by a translation. You may illustrate your answer with diagrams. (16 marks) a) Refer to the OpenGL code fragment in Figure 3 below: qlBegin (GL POLYGON) glVertex3f(-0.7f, -0.5f, 0.0f); glVertex 3f (0.7f, -0.5f, 0.0f); gl Vertex3F(0.4, 0.5f, 0.0f); glVertex 3 (-0.45, 0.5f, 0.0f); glEnd(); Figure 3: OpenGL code fragment i. What is the shape of the polygon drawn using the code fragment in Figure 3? (2 marks) it. Add codes so that each vertex has different colour. (4 marks) ili. In OpenGL, we can associate a color with each vertex. What happen if the endpoints of a line segment have different colors assigned to them? (3 marks) b) Explain how any sequence of rotations and translations can be replaced by a single rotation about the origin followed by a translation. You may illustrate your answer with diagrams. (16 marks)