PPT-Texture Mapping

Course Computer Graphics Presented by Fan Chen fchencskentedu Outline Why Texture Mapping What is Texture Mapping Texture Mapping in OpenGL Why Texture Mapping Model Model Texture Shading. CSE 781. Roger Crawfis. Bump Mapping. Many textures are the result of small perturbations in the surface geometry. Modeling these changes would result in an explosion in the number of geometric primitives.. Texas . A&M University. Same Taste—Different Texture. Marketing Texture. “Get the incredible crispness you love-- plus added crunch and flavor in each ridge.”. www.lays.com. Marketing Texture. 6351.001. Procedural Animation. Introduction . to Procedural Methods in 3D Computer . Animation. Dr. Midori Kitagawa. In class. Pay attention. Take notes. Learn. Be ready for a pop quiz. Week 9: Mapping. Texture Rubbing . - Fold a sheet of paper into six squares. . - -Make 6 texture rubbings by placing your paper over a surface and rubbing it with a crayon. . -. REMEMBER the object of each texture rubbing AND think of adjectives used to . 2. Basic Stragegy. Three steps to applying a texture. specify the texture. read or generate image. assign to texture. enable texturing. assign texture coordinates to vertices. Proper mapping function is left to application. . . Texture. Texture is an innate property of all surfaces (clouds, trees, bricks, hair etc…). It refers to visual patterns of homogeneity and does not result from the presence of a single color. . ROBERT BEZIRGANYAN & ADEDAYO ODESILE. CSS 552 RESEARCH PRESENTATION. What is Texture Mapping?. Wrapping a primitive with a complex surface.. Source: Prof K. Sung, CSS 552 Texture Mapping Class Slides. CSS 552 – TOPICS IN RENDERING. PROBLEM. UV Texture mapping is less flexible due to its tight coupling with the geometry.. Defining UV coordinates for mesh is daunting.. SOLUTION. Projection Texture mapping to the rescue.. Blindfold activity. Was it easy or hard to guess what type of fabric it was?. Why? What clues did you have?. Texture. Where is texture found?. In the thickness and appearance of fabric.. What is it?. What we Know. We can open image files for reading. We can load them into texture buffers. We can link that texture buffer to a variable in the fragment . shader. We can access the texture in the fragment . Obtained from a July, 2014 Summer workshop in Guildford County . Texture Mapping. Texture Mapping. Surfaces may have single colors or they may have multiple color patterns, which are commonly referred to as . 1. Texture Mapping. Applying an image (or a . texture. ) to geometry. 2D images (rectangular). 3D images (volumetric – such as a CAT scan). Adds realism to the scene. A vertex can have:. A 3D position (x, y, z) – 3 floats. Bump Mapping. Many textures are the result of small perturbations in the surface geometry. Modeling these changes would result in an explosion in the number of geometric primitives.. Bump mapping attempts to alter the lighting across a polygon to provide the illusion of texture.. these tools may offer educators as yet unrealised and potentially complementary functions to aid The over-riding aim of all mapping tools is similar. If students can represent or manipulate a complex