INTERSCULPT 2007

Venue 1: " Sculpture & Mathematics"
École Nationale Supérieure D'Arts et Métiers ( ENSAM)
155, Boulevard de l'Hôpital
Paris, France

Thursday, 11 October, 2007

18H00 -- Reception

Janick Simeray, CEO; <JSimeray@simerLab.com> SimerLab
Creator of Levitating Orb
Minaz Ganji, Marketing and Communications, SimerLab
(Turkish/Iranian -- atheist) Background in Political Science. Just returned from three months in China, mediating between Chinese workers and management at a factory. She said, "It's not indstry, it's mass-production." Meaning -- in general, they don't work smart, they throw people at the problem.

Janick, Manaz (and Trevor, Executive at Corgi, UK) are friends of Raymond Aschheim. PolyTopics

Dr. Gregorio FRANZONI -- thanked me for my helpful e-mail

Claude-Paul Bruter <bruter@univ-paris12.fr> Department of Mathematics, University of Paris-12 -- was organizer of Art & Mathematics 2000, Maubeuge (Northern France), editor of Proceedings for Springer-Verlag.

Michel DARONAT, Director of Science and Technology, Axiatec
Michel Daronat is running a Z Corp Z-450 Color 3D Printer with improved, patented surface post-finishing at ENSAM. The material is said to be colorfast to 20 years.
He built a copy of my Botty-Shelly which looks better in his version of ZPrint software than it does at ITG/VMIL Although, Axiatec's VRML importer does not interpret VRML2.0::textureTransform

     {
      rotation 0.000000
      scale 1.500000 1.000000
      translation 1.000000 -0.000000
     }
(The textures are untranslated)
M Daronat is very distressed that the "mating surfaces" of the top & bottom half-venus objects do not, in fact mate -- they are of the same shape.
I have to fix this.

Axiatec does glass!


Presentations -- Saturday, 13 October, 2007 -- ENSAM, Paris -- 10H30(AM)

Patrick Saint-Jean -- in charge of INTERSCULPT/ENSAM AudioVisual setup & operation. "Le projet PolyAgogic CyberSpace"
Spectator -> Spect-Actor -> Interactor in collective, immersive VR (cyberspace theater)
Knowledge/Ignorance -- Quantum Texturologics -- operation on a relational graph -- ideograph -- in conceptual space.

11H00-11H20

Philippe RIPS sculpteur, France "Tensegrity et constructions légères"
Presentation en Fran&c;ais, RIPS showed asimply unfolding, octahedral architectural unit.

11H20-11H50

Raymond ASCHHEIM ingénieur, mathématicien et artiste plasticien, France PolyTopics
"Quattuor Quaternionibus"
De Dali aux nombres à 16 dimensions, un parcours éclairé par les mathématiques et illustré par les premières hypersculptures vous révèlera des clefs de mythes anciens (genèse, cabale, alchimie, apocalypse) et de théories scientifiques actuelles (géométrie non commutative, théorie des cordes, physique digitale, systèmes complexes). De passionnantes questions philosophiques, métaphysiques et scientifiques sont abordées par le langage de l’art visuel, plastique, dynamique et interactif.

ASCHHEIM showed an interactive polytope demo in VRML (Cortona Viewer plugin for Mozilla)
Dual of the 24-cell -- rotational symmetry groups on Salvador Dali's "Christus Hypercubus".
Compression of Symmetry in quantum particles under energy of collision.
The Platonic Elements generate 11 dimensions (M Theory).
The Kabballistic Tree of Life.

11H50-12H10

Phillippe CHARBONNEAU, sculpteur, France "Sculpture et surfaces réglées"
3rd-degree ruled surfaces relating to "Optiverse"
(Apéry's polyhedral construction?)
CHARBONNEAU showed many maquettes.

12H10-12H30

Stephane TROIS-CARRÉS, artiste plasticien et enseignant, France -- INTERSCULPT/ENSAM videographer for Conference DVD.
TROIS-CARRÉS showed DVD of "Wonderful Widow of Eighteen Springs"
Words by James Joyce, Music by John Cage. Math Metamorphoses by TROIS-CARRÉS.
Sculpture-Poéme "1 est 2" -- 2(-1/2?)-D morph of numeral symbols "1" -> "2"

14H00-14H30

Monique BLANC, professeur agrégée de mathématiques, ENSAM de Paris, France "Exemples d’utilisation de la CAO au CER-Paris de l’ENSAM"
La CAO s’est imposée à l’ENSAM à partie de l’année 1985 et sa première utilisation a été, bien sûr, une application industrielle. A partir de 1990 nous l’avons utilisée pour des reconstructions virtuelles (L’église abbatiale Cluny III par exemple). A ce jour la CAO est couplée au prototypage rapide pour la réalisation d’objets et à l’immersion virtuelle.
Gas mask for Army from anatomical survey database.
Model of Abbey/Church at Cluny (1993) -- see SIGGRAPH/IEEE Vis 1993
Work of Gabriel Cholet - chess set; Nicolas Huebler (no pictures)

14H30-15H00

Dr. Gregorio FRANZONI responsable R&D pour un cabinet d'architecture, en liaison avec l'université de Cagliari, Sardaigne, Italie
"Material models of surfaces: a bird’s eye view from galileo’s age to rapid prototyping"
In the last 20 years, mathematical objects have been represented, visualized and animated in very effective ways. Computer graphics turned out to be a powerful tool to improve understanding of Geometry of curves and surfaces and to attract people to Mathematics. Physical modeling of geometric shapes can be seen as a natural extension of virtual modeling: material models enhance our spatial perception of those objects by adding the tactile experience to the visual one. Moreover, in several occasions visual and material representations of mathematical objects played a central role in research development. In parallel with an overview of some famous models since the times of Galileo Galilei until today, I will show some models realized by means of several techniques and materials: plaster, wires, paper, metal and 3D printing, a technique used in manufacturing field to realize, through a layer-by-layer constructive method, accurate physical prototypes from 3D computer-generated models. 3D printing is probably the most powerful tool to produce very precise models of surfaces. In order to do that, one has to represent surfaces as solid bodies and this can be done in a natural way by constructing a thin solid shell around them. Such operation can be done by means of some standard differential geometry as long as the original surface is regular and injectively immersed in 3-space, while it requires some deeper work if it has self-intersections or singularities.
Sr. FRANZONI exhibited phases of Thomas Banchoff's Moebius <-> Klein metamorphosis, rendered in 3D printing at the INTERSCULPT 2007/ENSAM venue.
Viviani's Windows (1692) -- Leibnitz & de l'Hôpital gave analytical proofs.
Viviani gave a mechanical proof by construction which was exact.
Viviani's curve -- from construction -- intersection of sphere + cylinder
Also, intersection of cone with a parabolic cylinder.
Caddeo, Montaldo, Pin (2000) -- Intersection of Moebius band and sphere = circle + Viviani's curve.

Werner Boy Surface (1900)
Projective Plane (P2)
Immersion of P2 in R3 with Hilbert
Apéry parameterization in 1984.
Axial symmetry of order 4 = Morin Surface -- halfway through the sphere eversion
Franzoni: Wire models of Apéry's surfaces.

Moebius-Klein metamorphosis: Extrude Bernoulli's Limniscate on a circle;
+ Axis or limniscate rotates -- traces edge of Moebius strip -> Klein bottle in Mathematica

15H00-15H20

Patrick COLLANDRE artiste plasticien, France "un TAO platonicien" Oui et non (mais, c'est déjà la dualité ). Aussi mes axes de recherches sont actuellement situés entre la modélisation des volumes et leur complémentarité, le plein et le vide, l’avoir et le manque, etc... un travail d’équilibriste, quoi!. Je ne suis pas mathématicien, mais un grand rêveur touché par la beauté des volumes mathématiques. Par le passé, j’ai illustré en 2 dimensions des paysages imaginaires. De grands espaces dans lesquels flottaient des sphères constituées de 2 éléments en recherche d’égalité de rapport. Il y a quelques années, j’ai mis ce concept ( qui ressemble à la représentation du Tao ), en volume. Deux pièces identiques, qui assemblées forment une sphère. Ensuite, en recherche de compréhension, je me suis frotté à la quadrature volumique des polyèdres platoniciens et leur représentation de la complexité croissante. Mais en dehors des mots, je suis fasciné par leur beauté simple. Je compte sur ces volumes pour nous suggérer leur essence.

"A platonic Tao"

Yes and no (but this is already duality). My main research lines are at the moment inbetween the modelling of volumes and their complementarity, plenums and vacuums, “gets and lacks”, etc... Such an acrobatic work!
I am not a mathematician, but a dreamer touched by the beauty of the mathematic volumes. In the past, I illustrated some fictional landscapes in two dimensions — wide spaces into which spheres made of two elements in search of an equality ratio were floating.
Few years ago, I put this concept in volume (which looks like a Tao representation): two identical pieces, which look like a sphere, once put together.
Later on, looking for better understanding, I took on the quadrature density of the platonic polyhedrons and their growing complexity.
But, besides the words, I am fascinated by their simple beauty. I count on these volumes to give us an idea of their essence.

"la boule" (book)

"Baseball bisection of the sphere via angular conic extrusion (270 degrees).

15H20-15H50

Peter JANSEN sculpteur, Hollande "Strange Attractors"
From traditional craftsmanship I went over the last two years to the computer as my “main workspace”,computer-video-animation, sculpting. I was strangely attracted to the beautiful renderings with Chaoscope of 3d strange attractors and fractals.
When I read on the forum it wouldn't be possible to make them as real life forms I got enormously triggered. So after a lot of exercising with an experimental version of Chaoscope it was possible to make the right pointcloud data. By reverse engineering I could make almost perfect meshes from he pointcloud.
After that I could make solids out of it and repair the .stl files so they could be printed in polyamide and alumide (sls) and wit a 3dprinter in raisin for bronscasting.
Software: Chaoscope (Author: Nicolas Desprez)
Point cloud -> mesh (Materialise Magics-RP)
RapidForm XOR
Thicken & repair -- "Smart brush" -- mesh smoothing (like Maya Artisan Paint)
Create lofted surfaces from splines on mesh -> thicken -> union to fix polygonal surface
Use for pinch-points (crosscaps) on Botty-Shelly
Peter Jansen -- vacuum-cast bronze, aluminum 1.5mm thick.

15H50-16H20

Simon DINER physicien et philosophe, ancien Directeur de Recherche au CNRS, France "La question du nombre d'or"
le nombre d'or est un nombre irrationnel aux remarquables proprietes mathematiques, que l'on a voulu a tort a partir du xix° siecle impliquer dans des considerations esthetiques.
Divine Proportion
da Vinci <=> Luca Paoli (1509)
Fibonacci -> Kepler
"Cabalistique" reduction modulo 9 of Fibonacic series
Penrose aperiodic tiling -- height-width ratio of tiles.

17H00-17H20

Hsin Hsin LIN [via videoconference] artiste multimédia, Singapour "The Art of Equations"
From the soft-edged apple peels to the bird of paradise and leaves, from the hard-edged durians to desert cactus and coccothrinax, all can be formulated entirely by a 3-equations foundation. That is, one equation for each axis (x, y, z). The software auto computes the coordinates for each of the x, y and z axes as well as a varying real-time driven surface color and lighting parameters. Beyond asteroids, cardioid, deltoids, ellipsoids, lemniscate of Bernoulli or Gernoro, equations can be shaped to generate nature-like plants, birds and bees, marine creatures and 3D objects. Beyond the conceivable Nautilidaes and turritellidaes, equations can be used to formulate Balinese face masks, kimono and obi belts. These generated 3D structures can be animated and morphed automatically, and it can be Web-enabled.
When creating surfaces for the same object, equations are preferred over 3D modeling as it is extremely scalable and it is implemented with lean computational resources in hardware, software and manware, in fact, it is the minimum. This economy of expression is also the most flexible in real-time driven continuous facade changing for 3D geometry. It is an ecological purification of mathematically generated bit streams. This paper presents the results of an array of 3D structures formulated by equations.

17H20-17H40

Michel DARONAT ingénieur, sté AXIATEC, France "L'impression 3D au service de l'art, de l'architecture et du design"

Axiatec originated from ENSAM incubator.
Patented Z-450 color printing surface treatment will last 20 years.
IUT Le Mans & ENSAM, Paris -- lost-foam foundry
Babar figurine

17H40-18H10

Dr. Michael SHAW sculpteur, Univ. Loughbrough, UK "Rapid prototyping Specific Objects: the sculptural aesthetics of mathematical proportions"
The paper will explore recent research that attempts to exploit the sculptural potential of rapid prototyping in extending Donald Judd's concept Specific Objects. This has been achieved through a combination of deflected geometry, concentric deviance, and transparent structures. Consideration will also be given to the role of basic mathematical phenomena as an aesthetic tool that underpins the extension of singular forms with both variation and unity.
Anish Kapoor -- Liverpool installation
Rodin, Brancusi -- "Singular form"
Defection of ideal geometry
Donald Judd -- singular form
Unity and variation
Richard Serra, 2005 installation, Bilbao, Spain
Michael Shaw, inflatables
Extrusions of oscilating ines in Maya

19H20-19H30

Alexandre VITKINE infosculpteur, Paris "Comment obtenir des infosculptures simples et comment définir la simplicité ?"
Mes sculptures ou gravures sont simples - c'est ce que j'aime. L'utilisation des mathématiques permet de créer des formes simples. Comment définir la simplicité: Le grand spécialiste de la simplicité au MIT, John MAEDA, déclare: "Simplicity and complexity need each other." C'est à dire: Cette entité exige l’existence de son contraire. J'ai défini la simplicité comme l'inverse de la complexité ,ce qui donne:
           
        sim = 1/com ou ksim = 1000/com
Comment chiffrer la complexité:
Compter le nombre d'éléments de l'œuvre : Symbole com.
Comment définir un élément:
C'est une ligne ou une surface plane ou gauche sans discontinuité.
(Un volume est défini par la surface qui l'entoure)
Quelques exemples:
                Sphère        com=1    ksim = 1000
                Hémisphère        com=2    ksim = 500
                Cube            com=6    ksim = 167  
_________
Tout cela peut être contesté:
Si nous voyons la surface de la sphère comme composée d'une infinité de surfaces élémentaires, nous obtenons:
   
                            com = infini    ksim = 0
---------------
Que pensez-vous de tout cela ?
M VITKINE presents us with a contradiction -- I don't think there is a resolution.

18H40-19H00

Dr Jean-François BONNET Maria HERNANDEZ INOLAM, France "ASTRALE un projet au service de la valorisation du patrimoine"
Projet ASTRALE (Art Science Technologie Recherche en Amérique Latine et Europe) Réseau de collaborations scientifiques et culturelle France Amérique Latine avec pour thèmes principaux :
ASTRALE -- Europe-Latin America collaboration
Patrick Callet -- ECP - Educational Institution
Industry - MVH - IRIS, Cipres, Example: Life Explorer
Virtual Archaeology -- non-contact digital reproduction
Cuba-Europe collaboration in color analysis of antique painting for restoration
Restoration of Afghan Buddha via 3D techniques
International Scientific Film Festival 10-14 Octobre -- concurrent with La Fête de la Science -- umbrella for INTERSCULPT.

INTERSCULPT 2007

Venue 2: " Sculpture & Biomorphisme"
Conseil-Général de Muerthe et Moselle
48, Rue du Sergent Blandan
Nancy, France

Sunday, 14 October, 2007

13H00 -- Presentations

Historical scientific study of the human phoetus (fetus)
Defects as the genesis of monsters.

Biomedical Visuailization -- an overview
X-Ray, Ultrasound, CT, MRI, PET, SPECT

Andrew Werby ComputerSculpture.com

Glenn Davidson, ArtStation.Org.UK [via teleconference] I ran slides for this presentation. I've known these folks since International Sculpture Conference, Computers & Sculptors Forum, University of the Arts, Philadelphia 1992.
Anne Hayes, ArtStation.Org.UK

ArtStation: Human CAD/CAM
Inflatable, architectural forms, executed in raw festival form.
Social experiments in public spaces.

Influences: Gordon Pask, UK Cybernetics 1988
Joachim Mowitz, Univ Amsterdam
Arno Goudsmit, Univ. Groenignen
Richard Noble, Roboticist -- Turtle (logo) floor-pen
Seymour Pappert

ArtStation -- "Filotaxia" (1990)
D'Arcy Thompson

Mary Visser, Professor of Art at Southwestern University, Georgetown, Texas RPSculpture.org

Internal/External

ISC Symposium Houston
International RP Art Exhibition 2003
Austin Museum of Digital Arts (AMODA)
"Animated" Ritual Scenes
Dance scenes are the basis of Mary's work
She uses Raindrop GeoMagic to repair figure models.

Patrick Domenic Visentin, Montréal
Art & Science 137 -- 18" x 24" book
Phylum
Stephen Jay Gould -- influence
Fantasizes genetic evolution of his biomorphic forms.