Hi everybody,
So it's time to stop adding/retouching things to what will be my first
participation at the tc-rtc. I'll send my image there tomorrow morning, but
first I drop by here for your precious comments, and because I have a question :
it is said in the rules that post-processing is allowed "in a restricted way". I
added some motion blur to my image using Gimp (I mean, not using the motion blur
filter of Gimp, but composing several images rendered with POV in Gimp). Does
any know if that's allowed ?

Comments about the image :

tools used :
The two fabrics are CSG generated by a cloth simulation tool of my own written
in C. All the other elements have been created directly in POV language with a
standard text editor. Textures for the pottery, the wave petunia flowers, and of
course the cards and music score are image_map created or processed in Gimp 2.6.
All the other textures and material have been made in POV language. Some final
processing (blur movement and black pixels) was made in Gimp 2.6.

render time :
main image : 1 hours  6 minutes 55 seconds
sub images for blur movement (25 images) : 3 hours 37 minutes 38 seconds



description :
I have chosen to celebrate the discovery of gravitational waves with a still
live.
On the trophy of discoveries about waves, lays a new card displaying the results
from the Laser Interferometer Gravitational-Wave Observatory which has proven
the existence of these waves. Under the trophy, blank cards can be seen, waiting
in shadows for the next discoveries to come. Surrounding the trophy, the realm
of waves is represented by instances of several of their kind. From left to
right : the prism diffracting light waves; the radio getting music through radio
waves; the wave petunia; the waves in structure of bread, tablecloth, kilt
garment and pottery; the waves in texture of kilt garment and pottery design;
the wave in movement of the pendulum; the diapason representing the sound waves;
and finally the waves in music with the score of "La mer" (the sea) by Charles
Trenet.
Also, the regular arrangement on the table of objects relating to a common
concept becomes by itself a pattern in the image. ("Pattern: An arrangement or
design regularly found in comparable objects", Oxford dictionary)
The light focuses on the table to represent the knowledge, in opposition to the
surrounding darkness representing the unknown.

how this was created :
The main light is a spot_light. Radiosity and photons are used. The tablecloth
and the kilt garment are cylinders and spheres, individually textured, whose
position is calculated by physic simulation of actual fabric. The trophy is made
of CSG generated by a POV macro, with golden texture. The cards are CSG with
image_map. The prism is made of CSG with glass texture modified to enhance
diffraction. The diffraction effect comes from a spot_light on the left, not
visible on the image. The radio is made of CSG and a height_field for buttons
and logo, with wood, aluminum and glass texture. The wave petunia is made of CSG
generated by a POV macro. The flowers are uv_mapped mesh made by a POV macro,
the pot and leaves are made of standard primitives and textures. 10 different
flowers associated to 3 different textures are repeated to create 110 flowers.
Leaves are instances of just one single leaf. Everything is placed randomly
under control of a primitive collision detection algorithm. The bread is a blob.
Each of the 30600 elements (positive and negative strength) are individually
textured, and placed by a POV macro. The pottery is a mesh generated by a POV
macro, uv_mapped and textured. Interior+media is used to give it a slightly
translucent effect. The pendulum and diapason are CSG with aluminum texture. The
pendulum blur movement is a composition in Gimp of 25 images at different time
of the undulation. The music score is a mesh generated by a POV macro and
uv_mapped. Drawing on paper gave me a first rough idea of the scene, and the
idea evolved during the process of creating each object and assembling them
together. I created each object in a test scene, and assembled them one after
the other in the final scene, eventually coming back to the previously made to
make everything fit together. I haven't counted precisely how much time it took
but I estimate it to be around 80 hours. The total POV code is 565530 lines long
(1922 lines without the kilt garment and tablecloth)
Thanks to my friend Yann Le Gal and the POV community for comments and advice
during the process.

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