Answer:
Renaissance Painting Techniques 
 • Linear Perspective 
Example: Flagellation of Christ by Piero della Francesca. 
• Foreshortening 
Example: Lamentation over the Dead Christ by Mantegna. 
• Quadratura 
Example: Camera degli Sposi frescoes by Mantegna. 
• Sfumato 
Example: Mona Lisa by Leonardo da Vinci.
Step-by-step explanation:
(1) A reverent revival of Classical Greek/Roman art forms and styles; (2) A faith in the nobility of Man (Humanism); (3) The mastery of illusionistic painting techniques, maximizing 'depth' in a picture, including: linear perspective, foreshortening and, later, quadratura; and (4) The naturalistic realism of its faces and figures, enhanced by oil painting techniques like sfumato.