Lecture 20:

Real-Time Rendering (2nd Edition)

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Unformatted text preview: 1 Real-time Rendering & Graphics Hardware Pradeep Sen Class 20 – April 9, 2007 ECE 595 / CS 491 / CS 591 Real-Time Rendering & Graphics Hardware Pradeep Sen Advanced Graphics Lab Class 20 April 9, 2007 Real-time Rendering & Graphics Hardware Pradeep Sen Class 20 – April 9, 2007 Announcements ¡ I will speak at this week’s GFX Café ¡ Capturing light fields and refocusing images Real-time Rendering & Graphics Hardware Pradeep Sen Class 20 – April 9, 2007 Last time ¡ Advanced topics on Precomputed Radiance Transfer (PRT) Real-time Rendering & Graphics Hardware Pradeep Sen Class 20 – April 9, 2007 Today ¡ Real-time geometrical models ¡ Level of detail Real-time Rendering & Graphics Hardware Pradeep Sen Class 20 – April 9, 2007 Sources of 3-D data ¡ Typing in the geometric representation ¡ Writing a program to generate this data ¡ Output from a modeling program ¡ Sampling a real model at various points using a 3-D digitizer ¡ Reconstruction from photographs of an object (photogrammetry) ¡ Using a 3-D scanner which gathers depth info Real-time Rendering & Graphics Hardware Pradeep Sen Class 20 – April 9, 2007 Point clouds ¡ Scanners give us point clouds, we need to tesselate them in order to get triangular meshes we can render Images courtesy of Hugues Hoppe point cloud high-res triangular mesh simplified triangular mesh Real-time Rendering & Graphics Hardware Pradeep Sen Class 20 – April 9, 2007 Triangulation or tesselation Real-time Rendering & Graphics Hardware Pradeep Sen Class 20 – April 9, 2007 Delaunay Triangulation ¡ Triangulation of set of points P such that no point in P is inside the circumcircle of any triangle in the...
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Lecture 20: - 1 Real-time Rendering& Graphics Hardware...

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