We’re going to run out of prims.
Our little Media Zoo Island may not be “real”, in the original sense of the word, but it has always managed to have real effects on its visitors. Interest, inspiration, acquiring information, learning, even fun. But with every silver lining comes a cloud, a real effect we could do without – limited resources.
In the physical world, the talk is of “credit crunch” (a dated term already?), economic crisis, cuts. In the virtual world of our Media Zoo Island the limits are much more self-inflicted. We have embarked on a major project, SWIFT, and it’s testing the virtual world of Second Life to its limits. We want to display information in ways this virtual world was never designed for, we want animations that directly support each student’s learning needs at critical moments, and we want a virtual genetics laboratory where 30 students can each have all the equipment they need to practice screening genetic material for inherited diseases. That’s 30 sets of equipment, all in use at the same time.
In a physical laboratory, one wouldn’t imagine trying this (at least, not without a multi-millionaire benefactor), but the virtual world is different. Not having to work within the laws of physics – such as time, gravity and cause-and-effect – makes it much easier to create machines than in the physical world. Of course, they only give the illusion of working, but that can be quite sufficient to generate an effective learning experience.
Yet even in the virtual world, there is a cost. Machines and other objects are created using “prims” – malleable building blocks that can be used to create surprisingly effective virtual objects. Even though something like a PCR Thermocycler takes only 44 of these prims, we need twenty such devices, thirty 12-prim UV Transilluminators – the list is long. With everything else on the island, it soon adds up to the 15,000 prim limit.
So, as everywhere, it seems that our virtual world will need some “austerity measures”. We’ve already found enough unused objects to release half the shortfall, and will redesign others to use less resources.
Reaching the limit of virtual resources is certainly not the biggest challenge for the SWIFT team, but it is, perhaps, one of the most contemporary.
Paul Rudman, BDRA