PPT-Advanced Skin Shading with

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 amp eyes Penner10 Jimenez12 Jimenez13. Warm ups / Shading. 3/16/15 What elements . of . art is illustrated here?. 3/17/15 Copy the sphere below with arrowed terms.. 3/18/15 . Identifying the arrowed area.. 1. 2. 3. 4. 5. 3/19/15. Name the four shading techniques.. 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). Swapping the Loops. Ray tracer produces . visible . samples of scene. Samples are convolved with a filter to form pixel image. Ray tracing pipeline:. Review: Ray Tracing Pipeline. Scene Graph. -Traverse scene graph. 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. higher degree planar polygons; for has the reducing hidden restricting the summarized and by Sutherland Sutherland The next section dis- cusses their influence on the way shading the the Influence of 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: . 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.. 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.. Light Sources, Shading. , . Hatching, Crosshatching, and Stippling. Light Sources!. Shading. Hatching. Crosshatching. Stippling. Complete Worksheet. Draw a Sphere in your Sketchbook. Show your knowledge of light sources and make the object look 3-D with shading. . 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..