Page 146

144

TECHNOLOGY / LIGHT + BUILDING

MAKING NEW CALCULATIONS

CT U OD US R P OC F DIALux helps lighting designers to calculate illuminance, but the latest incarnations of the tool shown at Light + Building offer much more than that. In the past the walls of a room defined the limits of the program, where as now DIALux is breaking into the realms of visual reality.

Lighting calculation is simple: Illuminance is the ratio of incident luminous flux per unit of the receiving surface. Using a simplified procedure such as the lumen method, it is easy to define the number of luminaires required to achieve a standard level of illuminance. Lighting calculation can be done on a pocket calculator or with pencil and paper. Nevertheless, for many years lighting designers have been using lighting calculation programs such as DIALux which enables visualisation together with a high degree of accuracy. Lighting design is, after all, more than just a fulfilment of visual tasks; it is an integral part of architecture and architecture is more than just a room defined by its length, width and height. The aim of lighting calculation programmes is not only to provide evidence of fulfilling norms, but also to transmit a feeling for light and architecture. With DIALux evo, displayed at this year’s Light + Building, the company remains true to this approach. Where previously the walls of the room defined the limits of the software, DIAL has moved towards visual reality. Several floors and even whole buildings and their surroundings can now be simulated. Transparent and reflective materials play an ever increasing role in modern architecture and to ignore them leads to totally false results. In the pursuit of this approach, lighting calculation software is faced with completely new questions and tasks: How do I design floors and buildings? How do

I move around in virtual rooms? How do I keep the time and effort needed for the design process at an acceptable level? How do I calculate complex scenes within a reasonable period of time? How do I deal with different lighting scenes? How do I deal with the huge number of results available? This new and expandable operating concept allows the integration of new functions without overloading the user interface, meaning that the tools which are required at any specific stage of the planning process are provided. The new design and construction options, combined with a completely new calculation kernel and photorealistic visualisation, make use of the possibilities provided by modern computers without the need for special hardware components. DIALux evo is a tool for calculating, designing, visualising and documenting light, developed by designers, for designers. The next step in the development of DIALux evo is the DIALux evo 3, which is now available as a download. This latest version for lighting design offers some exciting innovations including the “DIALux Easy” and street planning and energy assessment. Currently DIALux evo is being used by more than 100,000 users all over the world and they are able to upload new renderings on a daily basis and post requests and suggestions for improvement via DIALux’s Facebook page. Since July of 2013 there has also been a “Project of the Month” on the DIALux Facebook page. Here users can present

their best project for a chance to win The company has termed this community activity ‘DIALux easy’ and aims to make it as easy as possible for anyone to be involved in the design process and it is now possible to start ‘DIALux easy’ in DIALux evo 3. The choice of tools available has been reduced to basic functions. Fast and simple generation of rectangular space, automatic luminaire arrangement, calculation, summary and documentation is now possible. Another new function in DIALux evo is ‘Street’. With the latest version it is now possible to carry out street calculations and the option “Street” has been added to the GUI. Normative evidence, Street Scheme Editor, street lighting arrangement and valuation fields are all new tools now available to the user. In DIALux evo users can now carry out energy assessments very easily. The results are provided in kwh/a, kwh/a/ m² (Leni) together with an overview of the total costs. The energy assessments can relate either to a single room or to a whole project. In order to improve the performance for more complex projects the 64-bit version has been optimised. DIALux evo 3 now has more storage space (RAM) so there is increased performance. At the same time the visualisation of material properties has been improved. Plastic and metal surfaces can be visualised at once. With DIALux evo 3 now released DIAL has revealed the next version is on the way. www.dial.de

Profile for Mondiale Publishing

mondo*arc Jun/Jul 2014 - Issue 79  

mondo*arc is the leading international magazine in architectural lighting design. Targeted specifically at the lighting specification market...

mondo*arc Jun/Jul 2014 - Issue 79  

mondo*arc is the leading international magazine in architectural lighting design. Targeted specifically at the lighting specification market...

Profile for mondiale