3D graphics eBook - Course Materials Repository

Texture mapping 217
External links
• Perspective Corrected Texture Mapping (http:/ / www. gamedev. net/ reference/ articles/ article331. asp) at
GameDev.net
• Introduction into texture mapping using C and SDL (http:/ / www. happy-werner. de/ howtos/ isw/ parts/ 3d/
chapter_2/ chapter_2_texture_mapping. pdf)
• Programming a textured terrain (http:/ / www. riemers. net/ eng/ Tutorials/ XNA/ Csharp/ Series4/
Textured_terrain. php) using XNA/DirectX, from www.riemers.net
• Perspective correct texturing (http:/ / www. gamers. org/ dEngine/ quake/ papers/ checker_texmap. html)
• Time Texturing (http:/ / www. fawzma. com/ time-texturing-texture-mapping-with-bezier-lines/ ) Texture
mapping with bezier lines
• Polynomial Texture Mapping (http:/ / www. hp. com/ idealab/ us/ en/ relight. html) Interactive Relighting for
Photos
• 3 Métodos de interpolación a partir de puntos (in spanish) (http:/ / www. um. es/ geograf/ sigmur/ temariohtml/
node43_ct. html) Methods that can be used to interpolate a texture knowing the texture coords at the vertices of a
polygon
Texture synthesis
Texture synthesis is the process of algorithmically constructing a large digital image from a small digital sample
image by taking advantage of its structural content. It is object of research to computer graphics and is used in many
fields, amongst others digital image editing, 3D computer graphics and post-production of films.
Texture synthesis can be used to fill in holes in images (as in inpainting), create large non-repetitive background
images and expand small pictures. See "SIGGRAPH 2007 course on Example-based Texture Synthesis" [1] for more
details.
Textures
"Texture" is an ambiguous word and in the context of texture synthesis
may have one of the following meanings:
1. In common speech, "texture" used as a synonym for "surface
structure". Texture has been described by five different properties in
the psychology of perception: coarseness, contrast, directionality,
line-likeness and roughness Tamura .
2. In 3D computer graphics, a texture is a digital image applied to the
surface of a three-dimensional model by texture mapping to give the
model a more realistic appearance. Often, the image is a photograph
of a "real" texture, such as wood grain.
Maple burl, an example of a texture.
3. In image processing, every digital image composed of repeated elements is called a "texture." For example, see
the images below.
Texture can be arranged along a spectrum going from stochastic to regular:
• Stochastic textures. Texture images of stochastic textures look like noise: colour dots that are randomly scattered
over the image, barely specified by the attributes minimum and maximum brightness and average colour. Many
textures look like stochastic textures when viewed from a distance. An example of a stochastic texture is
roughcast.