Comments :
Texels are used to built complex geometries (foliage, grass, fur, fabric, hair...) with a model looking like texture, with thickness. Good properties are in the computation time, the image quality (few aliasing), and more, the cost 'moralization' : cost is now linked to the visible detail amount, and no longer to the database detail amount.

( images and animations are copyrighted: no public use is allowed without author autorization. )

NB: Some videos are available on YouTube.

examples of typical complex scenes

set of complex scene pictures

set of corresponding texels

images published in the GI'95 proceeding

images published in the proceeding de EWAS'95

-- december, 1994 --

( images and animations are copyrighted: no public use is allowed without author autorization. )

mpeg animations: forest hill

hill alone

texel mapping

reference texel building

résultat: forest hill (1.6 Mo)

mpeg animations: wild torus

texels mapping upon the torus

mapping deformation (like `hair-doing')

(cyclic) reference texel building

texels mapping and deformation

result: torus with fur (1.8 Mo)

mpeg animations: buildings under construction

cubic support shapes (2.3 Mo)

reference texel

result: scaffoldings (2 Mo)

result: zoom (1.4 Mo)

mpeg animation: maze

result: deep zoom (1.9 Mo)

-- april, 1995 --

( images and animations are copyrighted: no public use is allowed without author autorization. )

animated texels (mpeg) :

flag under the wind (1.2 Mo) ( Xavier Provot model )

a detail of the flag (0.70 Mo)

lawn under the wind (0.75 Mo) -- jully, 1995

-- december, 1995 --

( images and animations are copyrighted: no public use is allowed without author autorization. )

landscapes using volumetric texture (mpeg and jpeg) :

flight over an amazonian forest (4.1 Mo)

single image

dense forest (single image)

flight over a orchad (2.6 Mo)

single image

again: animated lawn (0.75 Mo)

single image

-- spring 1996 --

( images and animations are copyrighted: no public use is allowed without author autorization. )

Other images (numerous!) made during my PhD.



-- June 1998 --

Texels in interactive time (work done with Alexandre Meyer), considering a volume as a set of textured slices, which allow us to use the graphics hardware
(cf the detailled page, and the EWR'98 paper).

A single texel, before and after deformation (manipulations are done in real time):

Mapping on a plan and on a sphere, replresenting 13 million of virtual polygons. The display is done on O2 with a few images per seconds.

Grazing view of the plane.

A few trees.

( images and animations are copyrighted: no public use is allowed without author autorization. )

-- January 1999 --

Texels without distortion in interactive time (using the triangular patterns technique).

-- 2001 --

Texels in real-time with interactive shading.
Images, anims, see report'01

-- 2003-2004 --

Real-time rendering of forests (adaptive texels, aperiodic mapping).
Images, anims, see publi EGSR'04 : Rendering Forest Scenes in Real-Time

Texels with per-pixel shading and shadowing.
Images, anims, see publi siggraph poster : GPU-Based Lighting and Shadowing of Complex Natural Scenes