adrienlucca

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Tag: mathématiques

macro photo on D65 6.1

macro D65 6 2

macro D65 6.1 1

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a good junction

DSCN0038 copie

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To have a good (near invisible) junction between two triangular zones means succeeding, with different lines boldness and angles, to cover the paper with the same proportions of colors. If it is visually good, it means that the drawing instrument is well calibrated, and that all the calculus were correct.

In my next drawing D65 n°6 I will have a lot of junctions like this one, the challenge will be to make them all as good as this one! :)

D65 n°3, transparences / lampe / spectres, 2012

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Below, detail: desaturated daylight spectrum

same but different (in a way…)

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The two largest rectangles have the same color average: same colors in the same proportions.

The one on the top is made of 4 layers, one color per layer, one spatial frequency per color, and the angles between the layers are “optimized” in order to get rid of moiré effects.

On the other one there’s also 4 layers, but with a unique frequency, a 45° rotation and the colors are randomly diffused.

Both are trying to “match” the average color of the background and in both paint is covering 60% of the paper.

The 1st one is almost invisible, the second appears to contain intense colors.

D65 n°3 part II starts

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I’m gonna do a “lamp simulation” (a circular gradient with constant tint and varying brightness, based on the abstract model of a “perfect lamp,”) based on 11 colors: 3 times RGB with 3 levels of brightness (I dont enter into the detail of how I choosed them) and Black/White.

hi-resolution pictures of the prototype

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Light ON/OFF, hi-resolution orthographic panorama made with Hugin.

For me, there’s not much difference between such a work (the prototype, made of laserprints on paper) and a “traditionnal painting.”

I’m really starting to think it’s just the same thing, like Richter includes amateur photography in the field of “painting.”

Light Transformer Prototype v.2

The prototype is finally finished!

So, to explain in a few words: 1-the amount of light projected by high-power spots on the wall has been measured. 2-an algorithm has been created to absorb the light using black over white laser-prints until the wall’s surface emits the same amount of light to the eyes of an observer situated in front of it. 3-The central part of this print has been cut and the same process remade a second time within the limits of this cut.

The impression produced is impossible to reproduce in photography, so the pictures there are just “documentation.” The impression is a bit like if the light was actually coming from “behind” the wall, like if the rectangle was a “window,” opening the wall, like in a dark corridor…

I’m really happy with it, I think it would be great to remake this much bigger the next time (and after developping the tools for it, I could make it much faster and more precisely…) I’m thinking of a “virtual corridor.” I’ve always been attracted by the idea of “remaking” the corridors of italian museums, where you walk slowly and stop at every painting on your sides. I could now make the painting of a corridor of paintings… :)

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NORMAL LIGHT

TRANSFORMED (EQUALIZED) LIGHT

good & bad news :)

The bad news: the laser printer cannot handle large black prints, some unit of the printer makes a random glossy layer on it.

the random gloss

the (very) good news id that the luminance correction is not very angle-dependant, means that except for that random gloss, the correction works at a wide variety of viewpoints, that’s really nice.

from the left side, the gloss dissappears and the flat is still “flat.”

below: zooms on different parts from the left side (same shutter speed)

wall to be visually uniformized: “ganzfeld” prototype

I will try to create a “ganzfeld” on this wall by subtracting light (using black printed patterns.)

This is the object of my residency at Netwerk, Aalst, BE, from last Monday to next Saturday.

More documents will come…

D65 lighting prototype @ JVE, Maastricht – 2011

D65 Normlicht light tubes mounted with an aluminium reflector

 “Table-Tops Room,” Jan van Eyck Academie, Maastricht, NL, 2011

D65 #3 1st “fake lamp”

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D65 #3 sunlight picture

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I just came back from a long journey, the blog will be re-updated regularly soon.

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Thanks to a brief moment of sunlight here I could make a very clear picture.

I will be where they did this for 3 weeks ;)

fake Light, 1st TW pass (in progress…)

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The lightness will change as if there was a perfect lamp at 17 cm from the center of the figure.

The white structure appears really “transparent.”

This geometrical solution could be called the “pixel solution,” since the surface is divided in 2×2 cm squares, other solutions are possible and will be tried later on the study: concentric zones, gradients… The only color added to the grey background is Titanium White (TW), later I’ll try color, enjoy ;)

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