PPT-Value & Shading

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. for Power-Efficient Rendering on High Pixel-Density Displays. Pavlos . Mavridis. Georgios . Papaioannou. Department of Informatics, Athens University of Economics & Business. Motivation. 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). Object rendering. INTRODUCTION. Lighting in computer graphics refers to the placement of lights in a scene to achieve some desired effect.. Lighting is very important part of an image synthesis.. It is used to create 3D effect by separating foreground from background.. (* 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. 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 . 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. 23.05.2016. . Sanja Zlatanovic. (Sanja.Zlatanovic@b-tu.de). Jenny Fabian, . Katrin. . Premke. , Michael . Mutz. Main factors cited as drivers for spatial variability of stream metabolism are: . Habitat heterogeneity: . 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.. Shader. ?. Small program, domain-specific language. Originally to compute surface appearance and . shading. “. Shader. ” is now used for any GPU computation. History. Shade Trees [Cook 1984]. Expressions for displacement, surface, light, atmosphere. 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.. 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 .