TITLE: Leonardo
NAME: Txemi Jendrix
COUNTRY: Bilbao, Spain
EMAIL: tji@txemijendrix.com
WEBPAGE: http://www.txemijendrix.com
TOPIC: Old Technology
COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT.
JPGFILE: leonardo.jpg
ZIPFILE: leonardo.zip
RENDERER USED: 
    POV-Ray 3.5

TOOLS USED: 
    Moray, Hamapatch, Poser, Anim8or, Poseray, The Gimp.

RENDER TIME: 
    42' 51''

HARDWARE USED: 
    AMD AthlonXP 1700 Mhz, HD 30 Gb, 512 Mb DDR ram.


IMAGE DESCRIPTION: 

La version en castellano esta despues de esta en ingles.
It's 1484. Today is an important day. Ludovico Sforza, AKA
"Il Moro", Duke of Milan, is going to visit Leonardo's workshop.
Leonardo has finished the boat with paddles, and Ludovico wanna
take a look at the boat as soon as possible, because all of
the things Leonardo has told him about it. He is anxious.
Before Ludovico arrives, Giacomo Caprotti, AKA "Salai" (devil),
a Leonardo's young apprentice, is cleaning the workshop, 
and now that he's almost finished, he is staring at the boat,
thinking Leonardo is a genius, and he is a lucky man being his
apprentice. Maybe someday he'll resolve the problem of 
flying, his Master's obsession. If only the Duke would get
interested on the Aerial Screw... And then the light of the
sun comes thru' the windows... good augury.

It has been a long time since I submitted my last work to the
IRTC, so I thought it was time to do so (I really needed it).
When I heard about the topic, I thought in Leonardo da Vinci,
a man I have admired since I was a child. As an inventor,
he pointed out the ways where other walked later.
His inventions are old technology (he could only count with
human strength), but they have something revolutionary.
Most of his ideas have survived him as sketches and it's
well known that only few of them were developed.
I have found no notice about this boat with paddles was
ever built. But when I see it I see the Mississipi ships,
but in the XV century. The aerial screw never was made, 
but the man who developed the helicopter always mentions
Leonardo's aerial screw as the strarting spark.
The horse is related to the monument projected for the
mausoleum of Ludovico's Father, a big horse (8 mts. tall)
that never was made (by Leonardo, it has been made 
recently by a foundation).
The pullers are here to show other piece of old technology
and the painting in Leonardo's room is Mona Lisa.
Actually Mona Lisa was painted later (1503-1505) but
I wanted to include her here anyway. 
For the curious ones, the title of the book over the table 
is: "Trattato della persistenza di visione".
I hope you enjoy it.
Bye.

Txemi Jendrix


DESCRIPTION OF HOW THE IMAGE WAS CREATED:
The horse is a poser model created by Sharkey.
Salai (the apprentice) is a poser model (and its props)
created by John Malis (Jon).
The broom is a poser prop created by Nerd3D.
None of these models are included in the zip due to
copyright questions.

Modelling:
The boat itself was made in Hamapatch by pieces so it 
could be textured separetely later in Moray.
Other objects were done in Hamapatch aswell; the anchor,
the Duke's armchair, the pullers, the screw of the aerial
screw, the rolled papers, the moulding on the top of 
Leonardo's room and all the ropes.
The rest, including the paddles and their mechanism and the
aesel where the Gioconda is set (almost hidden), are CSG 
objects done in Moray. 
The horse was posed in Poser, exported to .obj, edited in
Anim8or, exported once again to .obj and converted with 
poseray to udo/inc.
The floor and the garbage are heightfields.
The paddles and the rudder are animatables.

Texturing:
There are more than 50 textures, most of them layered ones.
The sketch on the wall, the Gioconda, the last supper in 
the moulding of the door, the poser man, the book on the 
table, the garbage and the floor use image maps.
All the rest are procedural textures.
The hull, for example, has 3 layers; 1st is a wooden one,
the 2nd is the same as 1st but with the map inverted and
a slope map in the normal to make it look like planks, the 
3rd is a pigment to filter the color (to dye the wood)
The floor has 2 layers; 1st is the image map used to make
the heightfield, 2nd is an agate pigment scaled.
The ropes of the pullers are tubes made in Hamapatch. To
make them look as ropes, the pigment uses a spiral1 color
map (8 arms), that has been scaled and translated to fit
the model.
The scatering effect is made using a box with the same
size as the workshop filled with media.

Lightning:
There is a main pointlight (a bit orange) outside the 
workshop that interacts with media and casts shadows.
All of the rest use fade power and distance, and are:
An arealight between the pullers and the aerial screw that
casts shadows. 
2 pointlights close to the front wall; one near the angel's
sketch and another between the angel and the door. They 
don't cast shadows.
Other 2 pointlights are close to the boat. The one close to
the rudder cast shadows, the other don't.
Finally, there is another pointlight (a bit pink) inside 
Leonardo's room.

The scene was rendered using antialiasing 0.1. I used The Gimp
to edit and (in some cases) create the image maps, and also
to add the title and the signature, to adjust the brightness
and contrast and to convert from png to jpg.
The title is not wrong. Leonardo used to write form right
to left mirroing the letters. Maybe because he was left-handed.
The zip file contains everything except the horse, the man
and the broom (copyrighted items). All the image maps are
included.
I want to thank specially the advices and comments from the
people in the newsgroups. A good place full of good
people. Thank you.

Txemi Jendrix 2003.

Credits:
Leonardo links:
www.museoscienza.org/english/leonardovirtuale/leonardo.html
www.lairweb.org.nz/leonardo/ 
Horse: www.cybergate-corp.ch/webdesig/poser3/
Man: www.3dcc.com/posergamers/ 
Broom: www.nerd3d.com
Moray: www.stmuc.com/moray
Hamapatch: www.geocities.com/Tokyo/Ginza/6625/soft10.html 
Poser: www.curiouslabs.com
Anim8or: www.anim8or.com
Poseray: user.txcyber.com/~sgalls/
The Gimp: www.gimp.org 
Pov-Ray: www.povray.org
Pov-Ray newsgroups: news.povray.org  
Music: Elton John, Ojos de Brujo, James Taylor, = Bob =
(Robert Dobbins),...


DESCRIPCION DE LA IMAGEN:
Estamos en 1484. Hoy es un dia importante. Ludovico Sforza,
alias "el Moro", Duque de Milan, va a visitar el taller de
Leonardo. Leonardo ha terminado el bote con palas, y Ludovico
quiere ver el bote tan pronto como sea posible, a causa de 
todo lo que Leonardo le ha contado sobre el. Esta ansioso.
Antes de que llegue Ludovico, Giacomo Caprotti, alias "Salai"
(diablo), un joven aprendiz de Leonardo, esta limpiando el 
taller, y ahora que casi ha acabado, esta mirando fijamente al
bote, pensando que Leonardo es un genio y el un hombre 
afortunado siendo su aprendiz. Quiza algun dia el solucionara
el problema del vuelo, la obsesion de su maestro. Si solo el
Duque se interesase por el tornillo aereo... Y entonces la luz
sol llega a traves de las ventanas... buen augurio.

Hace bastante tiempo desde que presente mi ultimo trabajo
a la IRTC, asi que pense que ya era hora de hacerlo (realmente
lo necesitaba).

Cuando me entere del tema, pense en Leonardo da Vinci, una
persona a la que he admirado desde ninio. Como inventor, el
apunto a los caminos que otros han recorrido mas tarde.
Sus inventos son tecnologia antigua (solo podia contar con
la fuerza humana), pero tienen algo revolucionario.
La mayoria de sus ideas le han sobrevivido como bocetos y
es bien conocido que solo unos pocos se llevaron a la realidad.
No tengo noticia de que este bote con palas se contruyera.
Pero cuando lo veo veo los barcos del Mississipi, pero en el
siglo XV. El tornillo aereo nunca fue construido, pero el 
hombre que desarrollo el helicoptero siempre menciona a
Leonardo como como la chispa que inicio todo.
El caballo esta relacionado con el monumento proyectado para
el mausoleo del padre de Ludovico, un gran caballo (8 mts.
de alto) que nunca fue realizado (por Leonardo, ha sido
realizado recientemente por una fundacion).
Las poleas estan ahi tambien para mostrar otra pieza de 
tecnologia antigua y la pintura en la habitacion de Leonardo
es Mona Lisa.
Realmente Mona Lisa fue pintada mas tarde (1503-1505) pero
queria incluirla aqui de todas formas.
Para los curiosos, el titulo de la portada del libro es:
"Trattato della persistenza di visione".
Espero que os guste.
Hasta luego.

Txemi Jendrix.

DESCRIPCION DE COMO SE CREO LA IMAGEN:
El caballo es un modelo de poser creado por Sharkey.
Salai (el aprendiz) en un modelo de poser (con sus props)
creado por John Malis (Jon).
La escoba es una prop de poser creada por Nerd3D.
Ninguno de estos modelos esta incluido en el .zip por
cuestiones de copyright. 

Modelado:
El bote en si mismo esta hecho en Hamapatch por piezas
para que pudiera ser texturado separadamente en Moray.
Otros objetos que se hicieron en Hamapatch; el ancla, el
sillon del Duque, las poleas, la tela del tornillo aereo,
los rollos de papel, la moldura en lo alto de la puerta de 
la habitaci_n de Leonardo y todas las cuerdas.
El resto, incluidas las palas y su mecanismo y el caballete
donde esta la Gioconda (casi oculto), son objetos CSG hechos
en Moray.
El caballo fue posado en Poser, exportado a .obj, editado
en Anim8or, exportado otra vez a .obj y convertido con 
Poseray a UDO/inc.
El suelo y la basura son heightfields.

Texturado:
Hay m_s de 50 texturas, la mayoria por capas.
El boceto en la pared, la Gioconda, la ultima cena en la moldura
de la puerta, el hombre, el libro sobre la mesa, la basura y el
suelo utilizan mapas de imagen.
El resto son texturas procedurales.
El casco de la barca, por ejemplo, tiene 3 capas; la 1a es madera,
la 2a es igual que la 1a pero con el mapa invertido y un slope
map en la normal para que pareciesen planchas o listas de madera,
la 3a es un pigmento para filtrar el color (para teniir la madera).
El suelo tiene 2 capas; la 1a es el mapa de imagen usado para
generar el heightfield, la segunda es un pigmento de agata 
escalado.
Las cuerdas de las poleas son tubos hechos en Hamapatch. 
Para que parecieran cuerdas, el pigmento utiliza un mapa de 
color de spiral1 (8 brazos), que luego ha sido escalado y 
trasladado para encajar en el modelo.
El efecto de scatering (los rayos de luz) se hizo usando 
un cubo con el mismo tamanio que el taller lleno de media.

Iluminacion:
Hay una luz principal (un poco naranja) fuera del
taller que interactua con la media y lanza sombras.
Todas las demas luces utilizan fade power y fade distance,
y son:
Una arealight entre las poleas y el tornillo aereo,
que lanza sombras.
2 pointlights cerca de la pared frontal; una cerca del
boceto del angel y otra entre el angel y la puerta.
No arrojan sombras.
Otras 2 pointlights estan cerca del bote. La mas cercana
al timon arroja sombras, la otra no.
Finalmente hay otra pointlight (un poco rosa) dentro de
la habitacion de Leonardo.

La escena se renderizo utilizando antialiasing 0.1. 
Utilice El Gimp para aniadir el titulo y la firma, 
editar y crear (en su caso) los mapas de imagen,
ajustar el brillo y contraste y convertir de
png a jpg.
El titulo no esta equivocado. Leonardo solia escribir
de derecha a izquierda y con las letras al reves.
Seguramente debido a que era zurdo.
El archivo zip contiene todo menos el caballo, el hombre
y la escoba (por limites del copyright). Todos los mapas
de imagen estan incluidos.
Quisiera agradecer especialmente los consejos y
comentarios de la gente del grupo de noticias. Un
buen lugar lleno de buena gente. Gracias.

Txemi Jendrix 2003.

Creditos:
Leonardo links:
www.museoscienza.org/english/leonardovirtuale/leonardo.html
www.lairweb.org.nz/leonardo/ 
Caballo: www.cybergate-corp.ch/webdesig/poser3/
Hombre: www.3dcc.com/posergamers/ 
Escoba: www.nerd3d.com
Moray: www.stmuc.com/moray
Hamapatch: www.geocities.com/Tokyo/Ginza/6625/soft10.html 
Poser: www.curiouslabs.com
Anim8or: www.anim8or.com
Poseray: user.txcyber.com/~sgalls/
The Gimp: www.gimp.org 
Pov-Ray: www.povray.org
Pov-Ray newsgroups: news.povray.org  
Music: Elton John, Ojos de Brujo, James Taylor, = Bob =
(Robert Dobbins ;-),...