PPT-Shading models

Nick Anastas Outline Virtual Objects Phong Reflection Model Basic Shading Models Advanced Shading Models Objects Made of planar polygons Any given planar polygon can be broken down into triangles. for Power-Efficient Rendering on High Pixel-Density Displays. Pavlos . Mavridis. Georgios . Papaioannou. Department of Informatics, Athens University of Economics & Business. Motivation. Non-photorealistic Rendering. a longtime goal of graphics research has been to render a scene that is indistinguishable from a photograph of the scene. non-photorealistic rendering, or stylized depiction, is inspired by artistic styles. Don't. use outlines.. Outlines only define . . visible edges and don't . . tell us anything about . . . light and dark. . Focus on . areas. of value. . Build up the shading. Often the 'outline' will be at the join between two different values, and is . FaceWorks. Nathan Reed — . NVIDIA. March 24, 2014. Digital Ira. Tech demo. Collaboration with Dr. Paul Debevec at USC. Lots of other inspiring work on skin & eyes. [Penner10], [Jimenez12], [Jimenez13]. Mica . Arie-Nachimson. May 2011. What is Shading?. Well… not shadow…. We can’t reconstruct shape from one shadow…. Image from www.moolf.com. What is Shading?. Variable levels of darkness. Gives a . Computer Graphics . Sessional. Virtual Realism. LIGHTING AND SHADING. Lighting & Shading. Approximate physical reality. Ray tracing. :. Follow light rays through a scene. Accurate, but expensive (off-line). (* But Were Afraid to Ask). Zap Andersson, Autodesk Inc.. Background. Zap Andersson. 2011-present: Autodesk Inc. 2004-2011: mental images GmbH . (= NVidia Advanced Rendering Center). 1989-2003: . Various. Dan Baker. Founder, Oxide Games. Ashes of the Singularity. Nitrous Engine/Oxide Games. New studio founded from industry vets – . Firaxis. , . Zenimax. , . Stardock. Ground up, custom engine. Several titles in development using Nitrous, including Star Control. You will be able to demonstrate consistent layering of pencil crayon and value changes with this exercise.. Ribbon Shading. For this demonstration you will need your sketchbook, your eraser, a 2H pencil, and . Types of pencils. 9H being the hardest lightest one and 9B the softest darkest one. Using pencils. The . H pencils . are the hardest and are good for fine details.. While the . B pencils . are the softest and are best for shading.. Surface can either (both). Emit light. E.g. light . bult. Reflect light. E.g. Mirror. Shading. Rendering equation. Cannot solved in general . Even by numerical method.. Shading. Approximation of rendering equation. Marker. Paint. Charcoal. Oil pastel. Chalk pastel. Pen and Ink. With What Can Shading be Used. Hatching. Cross-hatching. Stippling. Blending. Shading Techniques. The shading of an area with . closely drawn parallel lines.. DEPARTMENT OF ARCHITECTURE,. FEDERAL UNIVERSITY OF TECHNOLOGY,. AKURE, NIGERIA. Shading . Devices. 1. Introduction.. 2. Types of shading devices.. 3. Various Shading Devices and their Geometries.. 4. Design of shading devices.. Given a compete 3D scene with viewing/lighting conditions and object geometry and material properties fully . specified. First at Vertices, then in the interior of the triangle. Shading. [cgtrader.com].