This document describes a visual comfort calculation developed by the LESO group at EPFL during Spring of 1991. The calculation uses the RADIANCE synthetic imaging system [Ward90] to compute luminance values from a computer model of an architectural space and the lighting and daylighting of that space. These luminance values are then applied to a selected glare calculation procedure to arrive a...

This paper describes a method for rendering interreflections, self-induced shadows and caustics in real-time in a general low-frequency lighting environment. The method handles environment and area lighting and glossy as well as diffuse objects. The lighting environment is projected onto a lowfrequency spherical harmonic basis. Before the rendering a transfer vector (diffuse case) or a transfer...

Results are summarized for a scientific project devoted to the comparison of four atmospheric radiative transfer codes incorporated into different satellite data processing algorithms, namely, 6SV1.1 (second simulation of a satellite signal in the solar spectrum, vector, version 1.1), RT3 (radiative transfer), MODTRAN (moderate resolution atmospheric transmittance and radiance code), and SHARM ...

Recent advances in neural rendering indicate immense promise for architectures that learn light transport, allowing efficient of global illumination effects once such methods are trained. The training phase these can be seen as a form pre-computation, which has long standing history Computer Graphics. In particular, Pre-computed Radiance Transfer (PRT) achieves real-time by freezing some variab...

The indoor climate of industrial buildings is a function production technology and requirements for the creation an optimal artificial material environment. Currently, we consider daylight not only as source illumination, but also aesthetic element building or way reducing energy consumption. Light in closed space allows person to obtain basic visual information (perception) perform tasks. Top ...

A simulation scheme is proposed for flowfield and radiation analysis of solid rocket exhaust plumes at high altitude. Several recently developed numerical procedures are used to determine properties of the gas and condensed phase Al2O3 particles, and spectrally resolved plume radiation calculations are performed using a Monte Carlo ray trace model. Simulations are run for a representative plume...

High-resolution narrowband satellite data such as Enhanced Thematic Mapper Plus (ETM+) contain important information that enables us to map land surface albedos and interrelated phenomenon in high precision. In this paper, land cover of study area is classified into three classes as to surface features so that it is less expensive to eliminate the adjacency effect and to reduce the uncertainty ...

Gearing cities towards a path of sustainability is a daunting task. The urban models that we have come to accept during the 20 century need to be revisited, but change, even if welcomed in abstract, is usually met in reality with enormous resistance from the economic and political models that underlie our cities. Some of the most powerful tools for promoting change are those related to conceptu...