What is Texture Mapping

Jul 11, 2012

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What is Texture Mapping

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1. What is Texture Mapping? Spatially-varying modification of surface appearance Characteristics Color Shininess Transparency Bumpiness Etc.

Texture Mapping

Texture Mapping. CSE167: Computer Graphics Instructor: Steve Rotenberg UCSD, Fall 2005. Texture Mapping. Texture mapping is the process of mapping an image onto a triangle in order to increase the detail of the rendering

1.13k views • 41 slides

Texture Mapping

Texture Mapping. Aaron Bloomfield CS 445: Introduction to Graphics Fall 2006 (Slide set originally by David Luebke). Overview. Motivation and Examples Fundamentals Algorithms Perspective-Correct Texturing Transparency and Anti-Aliasing MIP-Maps Bump and Displacement Maps

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Texture Mapping

Texture Mapping. Jian Huang, CS594, Fall 03 This set of slides references the ones used at Ohio State for instruction. Can you do this …. What Dreams May Come. Texture Mapping. Of course, one can model the exact micro-geometry + material property to control the look and feel of a surface

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Texture Mapping

Texture Mapping. 2001.7.25 김 성 남. Contents. Goal 2D Texture Mapping Texture Filtering Mipmap Sphere Mapping Projective Texture Mapping. Goal. 정교한 물체 표현 Polygon , computation time , memory 개선방법 중의 하나 :Texture Mapping Simplifying objects + texture mapping 현재 많이 사용되는 방법

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Texture Mapping

Texture Mapping. Slides from Rosalee Wolfe DePaul University http://www.siggraph.org/education/materials/HyperGraph/mapping/r_wolfe/r_wolfe_mapping_1.htm.

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Texture Mapping

Texture Mapping. To add surface details…. More polygons (slow and hard to handle small details) Less polygons but with textures (much faster). World of Warcraft , Blizzard Inc. Advantages. Texture mapping doesn’t affect geometry processing, such as transformation, clipping, projection, …

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Texture Mapping

Texture Mapping. Until now, colors and shades determined the vertices color Texture is the characteristic physical structure given to an object by the size, shape, arrangement of its parts By texture mapping we apply image data to a geometric primitive. Basic strategy.

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Texture Mapping

Texture Mapping. Course: Computer Graphics Presented by Fan Chen fchen@cs.kent.edu. Outline. Why Texture Mapping? What is Texture Mapping? Texture Mapping in OpenGL. Why Texture Mapping?. Model + Texture+ Shading. Model. Why Texture Mapping?. Surfaces “in the wild” are very complex

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Texture Mapping

Texture Mapping. Introduction. What is Texture Mapping? Types of Texture Mapping 1D, 2D and 3D SDL and OpenGL. Getting Your Feet Wet. Five Steps in Getting Texture Mapping to Work 1. Load the Bitmap 2. Generate the Texture Handle 3. Bind and Configure 4. Build Texture in OpenGL

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Texture Mapping

Texture Mapping. Reading. Required Watt, intro to Chapter 8 and intros to 8.1, 8.4, 8.6, 8.8. Recommended Paul S. Heckbert. Survey of texture mapping. IEEE Computer Graphics and Applications 6(11): 56--67, November 1986. Optional Watt, the rest of Chapter 8

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Texture Mapping

Texture Mapping. Example Mappings. Mapping Techniques. Consider the problem of rendering a sphere in the examples The geometry is very simple - a sphere But the color changes rapidly With the local shading model, so far, the only place to specify color is at the vertices

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Texture Mapping

Texture Mapping. Kurt Akeley CS248 Lecture 10 25 October 2007 http://graphics.stanford.edu/courses/cs248-07/. Texture mapping demo. Texture mapping. Paints images onto triangles Paints images onto points, lines, and other images. Complete OpenGL pipeline. Pixel pipeline. Application.

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Texture Mapping

Texture Mapping. Motivation. A typical modern graphics card can handle 10s of millions of polygons a second. How many individual blades of grass are there on a football field? Modeling the fine detail in real objects with triangles is just too hard sometimes. Motivation.

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Texture Mapping

Texture Mapping. LIN Tao. Lecture Objectives. Apply a texture by assigning texture coordinates to a polygon explicitly Modify texture parameters Identify the advantages and disadvantages of the different filters available for textures Create textures with multiple levels of detail (mipmaps)

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Texture Mapping

Texture Mapping. Typical application: mapping images on geometry. =. +. RGB texture 2D (color-map). 3D geometry (quads mesh). More examples. Texture Mapping. The fragment operations can access a specialized RAM The Texture RAM Organized in a set of Textures

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Texture Mapping

Texture Mapping. Computer Graphics I. Objectives. Mapping Methods Texture mapping Environment mapping Bump mapping Basic strategies Forward vs. backward mapping Point sampling vs. area averaging OpenGL texture functions and options. The Limits of Geometric Modeling.

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Texture Mapping

Texture Mapping. OpenGl and Implementation Details CS351-50 11.05.03. Surface mapping. Texture mapping Bump Mapping Displacement mapping Actually moving geometry ie Create screw from cylinder, Terrain, etc. From Jim X. Chen, jchen@cs.gmu.edu. TEXTURE MAPPING IN OPENGL.

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Texture Mapping

Texture Mapping. checker.c. Texture-Mapped Squares. void init(void){ glClearColor (0.0, 0.0, 0.0, 0.0); glShadeModel(GL_FLAT); glEnable(GL_DEPTH_TEST); makeCheckImage(); glPixelStorei(GL_UNPACK_ALIGNMENT, 1); glGenTextures(1, &texName);

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Texture Mapping

Texture Mapping. CMSC435 UMBC. *With lots of borrowing from the usual victims…. Motivation. Flat and Boring. “ Textured ”. Texture Mapping. Definition: mapping a function onto a surface; function can be: 1, 2, or 3D sampled (image) or mathematical function. Texture Mapping.

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Texture Mapping

Texture Mapping. Slides from Rosalee Wolfe DePaul University http://www.siggraph.org/education/materials/HyperGraph/mapping/r_wolfe/r_wolfe_mapping_1.htm.

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Texture Mapping

Texture Mapping. CMSC435 UMBC. *With lots of borrowing from the usual victims…. Motivation. Flat and Boring. “ Textured ”. Texture Mapping. “ Texture ”. Boring Geometry. Texture  An image that ’ s mapped onto something Texel  Texture pixel (Also, an island in Denmark…).

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Texture Mapping

Texture Mapping. CPSC 414 10/24/03 Abhijeet Ghosh. The Rendering Pipeline. Texture Mapping. Associate 2D information with 3D surface Point on surface corresponds to a point in the texture Introduced to increase realism Lighting/shading models not enough Hide geometric simplicity

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