Advanced Material Rendering in Blender

0389704 - ÚTIA 2013 RIV US eng J - Journal Article
Hatka, Martin - Haindl, Michal
Advanced Material Rendering in Blender.
The International Journal of Virtual Reality. Roč. 11, č. 2 (2012), s. 15-23. ISSN 1081-1451
R&D Projects: GA ČR GAP103/11/0335; GA ČR GA102/08/0593
Grant - others:CESNET(CZ) 387/2010; CESNET(CZ) 409/2011
Institutional support: RVO:67985556
Keywords : realistic material rendering * bidirectional texture function * Blender
Subject RIV: BD - Theory of Information
http://library.utia.cas.cz/separaty/2013/RO/haindl-advanced material rendering in blender.pdf

Physically correct and realistic visual appearance rendering or analysis of material surface visual properties require complex descriptive models capable of modelling material dependence on variable illumination and viewing conditions. The recent most advanced representation of visual properties of surface materials is a Bidirectional texture function (BTF). BTF is 7D function of planar coordinates, spectral coordinate, and viewing and illumination angles, respectively. Unlike smooth textures, it specifies their altering appearance due to varying illumination and viewing conditions. This BTF visual appearance dependency on viewing and illumination conditions significantly complicates not only its acquisition, representation, and modelling but also makes its rendering noticeably more demanding. BTF textures are acquired by costly measurements of real materials and their subsequent nontrivial processing.
Permanent Link: http://hdl.handle.net/11104/0219529