Tagged: Projection

Further Blender Projection Tests 18122015

I’ve continued playing with projectors on the surfaces of architectural designs. (In Blender). As I’m trying to texturise 3d Models with online media (most likely screen captured videos of news channels), I’ve been testing its potential. These are the second round.

12122015System-3.jpg12122015System-4.jpg121220152System.jpg

 

 

30112015 – 01122015 Virtual Projection Tests

I’ve been looking for a way to do this for some time and FINALLY have made some headway. I’ve wanted to re-create the effects of a projector within Blender. These, as many of my tests are, are very simple and have no conceptual framework. These is proof of process and essential for me to look back at how my skills in this area have progressed.

Looking at the work I’ve done throughout the MA, the impact of the screen and device on the user is an essential element. This interaction between you the physical and what the device presents, the digital has been a perfect example of the imbalance between these polar opposites. I felt that I best achieved this through my work at Digital Meze, especially as it seemed to sum up a lot of images I had created beforehand that focused on the user and the television, or computer monitor.

‘Monitor’ projected a live stream of BBC News into an altered CRT Television to highlight the complexity of misinformation in the news. Using live news feeds in my work has been an interest of mine for some time, and although this conceptually worked, however the way in which it was presented through ‘Monitor’ wasn’t quite what I’d hoped.

In these tests, I’ve textured spot lights with images and increased the emission value to create the effect. I’ve tested this with screen captured videos of live news feeds but the render time is slow, and will take a while to display the examples. Whether its possible to stream a live news feed within this is not yet known but it feels as if its a crucial step to execute further work.

BLENDER’s CYCLES, UNITY + THREE.JS:

The Cycles render engine is notoriously difficult to run properly in THREE.JS, and similarly, in Unity. Baking the textures into UV wraps is really the only way forward. This is very possible to produce systems and works with still images of media but including videos or lives streams is a different ball park. It seems possible that if the light source in a Python engine such as Blender can be texturised, a light source in Javascript could be used similarly. I’m yet to establish this though it doesn’t seem impossible.

TEST IMAGES:

ProjectionTest3.jpg

ProjectionTest1

ProjectionTest2

Kimchi and Chips (Elliot Woods and Mimi Son) “483 Lines”

483lines6-1600x900

483making

483lines1-800x500

483lines2

483 Lines is the latest installation by Seoul based studio Kimchi and Chips (Elliot Woods and Mimi Son) and is comprised of 483 nylon threads with projections calibrated in 3D to the 16m threads using Rulr, an open source node-based toolkit developed by the studio.

From World War II up until the recent end of analogue broadcasts, decades of living imagery had been constructed using the NTSC standard. This standard represents a moving image frame as 483 lines of modulated light stacked from the top to the bottom of a television screen, within each line there is an analogue continuum, like the groove on a record player. From Nam Jun Paik to the moon landings, pictures were being represented, archived and seen within this format, until the line made way for the pixel and the digital video revolution.

The artwork 483 lines magnifies this analogue video picture until it is 16 meters wide, and then folds this image several times so that it fits vertically into the gallery space, therein adding oscillations of depth into the image which can be activated by ‘tuning’ the projected video to match these waves.

The strictly arranged lines can be illusionary, creating a confusing architecture of horizons, whilst the video played through it displays a parallel past, present and future.

The installation is comprised of laser cut alignment sheets at each end with 2kg of tension on each string (1tonne total). The team used a pulley and a 2kg weight to tension each. Once the team finalised the 3d arrangement, they do a 3d calibration of the projectors to those strings and a 3D edge blend. Rulr allow users to create patches of nodes to calibrate cameras, projectors, tracking systems and other devices. 483 Lines was designed so that the projector would have to be in specific exact positions and angles. Unfortunately this was proving to be impossible so instead by aligning projected pixels to strings, Elliot and Mimi can figure out 4 degrees of freedom. The final 2 degrees are solved by measuring where along the string the projected pixel is landing.

Rulr was made using C++, on top of openFrameworks and runs as a standalone app in in Windows and OSX. It is currently in pre-release state aimed for release later this year. If you are interested in beta testing the software, try catching one of their workshops – next one is up in Amsterdam, part of Coded Matters series ran by FIBER.

written by Filip Visnjic, Creative Applications

Dorine Van Meel, Between The Dog and The Wolf @ South London Gallery, 26052015

betweenthedog10

betweenthedog1

betweenthedogb

Interview from the Gallery Text:

Dorine van Meel, the fourth recipient of the Nina Stewart Residency in conversation with Margot Heller, Director of the South London Gallery. 

Margot: You’ve been in residence in our Outset artists’ flat next door for the past few months, but to what degree has that context had an impact on the work you’ve produced for the exhibition?

Dorine: All the works have been made during my stay, and the texts reflect directly on the enviornment I found myself in. Visitors might recognise specific details when listening to the narrators. Daily observations are mixed with reflections on books I was reading at the time – mainly biographies of female artists and revolutionaries, as well as feminist theory – and conversations I had with my female friends about the end of the world, the desire for a future, or the films of Agnes Varda.

M: Your interest in feminism has been manifest in all your work to dat. Where does that stem from and why do you think it’s particularly relevant today?

D: I arrived in London from Amsterdam at the same time as the economic crisis so I immediately joined the discussions about the presumed impossibility of an alternative to capitalism or an outsider perspective – against the backdrop of a postmodern worldview in which grand narratives are dead. To me however, neither irony nor cynicism are productive positions. In my understanding, feminism can open up a space in which to imagine the world differently, and invites us to act differently within the world as we find it. The relatively recent history of feminism not only shows us that even the most deeply rooted behavioural patterns are subject to change, but that change within society can come from unexpected corners. My research into feminisim also opened up new connections to my grandmother and mother, and their silent struggles, as well as to female artists from the past, like the painter Paula Modersohn-Becker, whose writing I refer to in the work.

M: The exhibition title, Between the Dog and the Wolf, is drawn from that research, and chimes with references to duality which permeate the show through the voices, scripts and imagery, as well as in the way they are presented in the gallery spaces. What’s the source of the phrase and how did you come to choose it?

D: In her essay, Woolf’s Darkness: Embracing the Inexplicable, the American writer Rebecca Solnit mentions a French expression used to refer to the twilight: ‘entre le chien et le loup’/ I understand it as the moment the night starts its battle with the day, the moment one is no longer able to distinguish the dog from the wofl, when the civilised foregrounds its savage side. If one thinks of the dog and wolf as one creature, the title of the show reads as an internal dialogue between its dual sides. It resonates with my rejection of the idea that any single subject can exist in isolation because we are formed of many. Helene Cixous, the French feminist writer, says it best: “Our customers demand simplicity. You are always full of doubles, we can’t count on you, there is otherness in your sameness.’

M: The scripts you’ve written are both puzzling and captivating, like a stream of consciousness in which disconnected observations, reflections and ideas somehow manage to flow thanks to the rhythm of the language, recurring imagery and momentary glimpses of cycles of thought. The words: ‘this was before the internet, and at bedtime I tell him dragons don’t exist, fear the real world instead’, prompt an association between the fragmentation embodied in your script with a navigation of a digitally mediated world. This is reinforced by the imagery of the projections, which equally seem to portray a dream-like or meditative state of mind. The words themselves are poetic and I’m intrigued to know how far they, and your work more broadly, embrace a sense of nostalgia for a pre-internet existence?

D: I find that a difficult question, nostalgia implies a longing for the past which it might falsely romanticise. I guess the strawberry iMac and the pre-internet reference locate the subject very precisely in the early nineties, a time in which images could still get lost or forgotten. I was a teenager when the internet entered our homes and many of my childhood memories are coloured by the digital forests and desolated hotel lobbies of computer games like Myst and Labyrinths of Time. I believe there is still an offline world out there, although one might need to force those encounters more consciously than one did in a pre-internet era.

1._Dorine_van_Meel__Between_the_Dog_and_the_Wolf__2015_b1e1f9_ml

LED / Arduino / Projection Tests 01032015 – 08032015

Arduino / LEDs Test: 

1. LED A to B when sensor is activated.

2. LEDs brighten as distance sensor is activated.

3. Reflective Background, LED shines through Prototype cutout.

Projection Test: 

4. Blocking projection light and successful back projection.