Texture-Mapping Documentation and Information Texture Mapping as a Fundamental Drawing Primitive, June, 1993: html format compressed postscript
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ABSTRACT: Texture mapping has traditionally been used to add realism to computer graphics images. In recent years, this technique has moved from the domain of software rendering systems to that of high performance graphics hardware.
But texture mapping hardware can be used for many more applications than simply applying diffuse patterns to polygons.
We survey applications of texture mapping including simple texture mapping, projective textures, and image warping. We then describe texture mapping techniques for drawing anti-aliased lines, air-brushes, and anti-aliased text. Next we show how texture mapping may be used as a fundamental graphics primitive for volume rendering, environment mapping, color interpolation, contouring, and many other applications.
CR Categories and Subject Descriptors: I.3.3 [Computer Graphics]: Picture/Image Generation; I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism - color, shading, shadowing, texture-mapping, line drawing, and anti-aliasing
Fast Shadows and Lighting Effects Using Texture Mapping, June, 1993: postscript format uncompressed PostScript browse src dir contents ABSTRACT: Generating images of texture mapped geometry requires projecting surfaces onto a two-dimensional screen. If this projection involves perspective, then a division must be performed at each pixel of the projected surface in order to correctly calculate texture map coordinates.
We show how a simple extension to perspective-correct texture mapping can be used to create various lighting effects. These include arbitrary projection of two-dimensional images onto geometry, realistic spotlights, and generation of shadows using shadow maps. These effects are obtained in real time using hardware that performs correct texture mapping.
CR Categories and Subject Descriptors: I.3.3 [Computer Graphics]: Picture/Image generation; I.3.7 [Computer Graphics]: Three-dimensional Graphics and Realism - color, shading, shadowing, and texture
Additional Key Words and Phrases: lighting, texture mapping
"Texture Mapped `smoke' special effects implementation" Documents a program which implements a visualization of the source smoke or plume.
Interactive Geometric Image Transformation Using Texture Mapping: compressed postscript format uncompressed PostScript showcase slide of accompanying figures
uncompressed showcase slide ABSTRACT: General-purpose computer graphics computer workstation technology is rapidly displacing more traditional "black box" image processing solutions. One core computer graphics technology that is driving this trend is "texture mapping."
In recent years, the technique of texture mapping has moved from the domain of software rendering systems to that of high performance general-purpose graphics workstation hardware. A graphics pipeline incorporating a texture mapping (image resampling) engine is a state-of-the-art geometric image transformation engine.
Shown here is how an advanced form of texture mapping, called "projective texture", can be used to interactively perform a full range of traditional geometric image processing tasks as well as enabling a wide range of new techniques. These include arbitrary projection of two-dimensional images onto geometry, realistic lighting/transmission effects, and generation of shadows using shadow maps. These effects are obtained in real time using hardware that performs correct projective texture mapping.
CR Categories and Subject Descriptors: I.2.0 [Image Processing]: Geometric Image Transformation; I.3.3 [Computer Graphics]: Picture/Image Generation; I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism - color, shading, shadowing, and texture
Additional Key Words and Phrases: warping, texture mapping
Accelerated Volume Rendering and Tomographic Reconstruction Using Texture Mapping Hardware compressed PostScript format uncompressed PostScript ABSTRACT: Volume rendering and reconstruction centers around solving two related integral equations: a volume rendering integral (a generalized Radon transform) and a filtered backprojection integral (the inverse Radon transform). Both of these equations are of the same mathematical form and can be dimensionally decomposed and approximated using Riemann sums over a series of resampled images. When viewed as a form of texture mapping and frame buffer accumulation, enormous hardware enabled performance acceleration is possible.
Texture Mapping in Technical, Scientific and Engineering Visualization: compressed showcase slide set uncompressed showcase browse src dir contents As of today, texture mapping is used in visual simulation and computer animation to reduce geometric complexity while enhancing realism. In this report, this common usage of the technology is extended by presenting application models of real-time texture mapping that solve a variety of visualization problems in the general technical and scientific world, opening new ways to represent and analyze large amounts of experimental or simulated data.
The topics covered in this report are:
- Abstract definition of the texture mapping concept
- Visualization of properties on surfaces by color coding
- Information filtering on surfaces
- Real-time volume rendering concepts
- Quality-enhanced surface rendering
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