研究背景,目标与内容(5 ● Why ibr? Geometry IBR Modeling Difficult Easy Complexity #triangles eIs Fidelity Synthetic Acquired Problems of triangle-based graphics always starts from scratch Millions of sub-pixel triangles二、研究背景，目标与内容(5) ⚫ Why IBR? – Problems of triangle-based graphics: ⚫ Always starts from scratch. ⚫ Millions of sub-pixel triangles. Geometry IBR Modeling Difficult Easy Complexity #triangles #pixels Fidelity Synthetic Acquired