Texture Mapping

Aug 18, 2013

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Texture Mapping. A way of adding surface details Two ways can achieve the goal: Surface detail polygons: create extra polygons to model object details Add scene complexity and thus slow down the graphics rendering speed Some fine features are hard to model!

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Texture Mapping

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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

1.16k 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

1.06k views • 60 slides

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

879 views • 61 slides

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

1.21k views • 28 slides

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, …

806 views • 38 slides

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. Why texture map? How to do it How to do it right Spilling the beans A couple tricks Difficulties with texture mapping Projective mapping Shadow mapping Environment mapping. The Quest for Visual Realism.

686 views • 33 slides

Texture Mapping

Texture Mapping. Introduction. Textures are simply rectangular arrays of data. Ex. Color, luminance, alpha, normal … The individual values in a texture array are called texel. In OpenGL, the length and width of the texture array must be the power of 2. Forward Mapping. Backward Mapping.

674 views • 38 slides

Texture Mapping

Texture Mapping. 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 Normal (x, y, z) – 3 floats Color?

532 views • 39 slides

Texture Mapping

Texture Mapping. CS 445: Introduction to Computer Graphics David Luebke University of Virginia. Admin. Combining next two assignments A) Lighting: Phong lighting on the CPU B) NPR: toon shading on the CPU C) GPU programming: lighting & toon shading on the GPU Due April 14

473 views • 30 slides

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

416 views • 14 slides

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

485 views • 22 slides

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

705 views • 52 slides

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.

693 views • 43 slides

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)

1.13k views • 75 slides

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

1.04k views • 62 slides

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);

843 views • 74 slides

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.

603 views • 52 slides

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…).

688 views • 56 slides

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