Luisa Caldas

Luisa Caldas
University of California, Berkeley | UCB · Department of Architecture

Ph.D. in Architecture: Building Technology, MIT

About

43
Publications
34,048
Reads
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1,171
Citations
Citations since 2016
22 Research Items
610 Citations
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Introduction
Luisa Caldas currently works at the Department of Architecture, University of California, Berkeley. Luisa does research in sustainable architecture and in Virtual and Augmented Reality. Some of her current projects are 'Painting with Light' and daylighting simulation in immersive environments.
Additional affiliations
September 2012 - May 2019
University of California, Berkeley
Position
  • Managing Director

Publications

Publications (43)
Preprint
Full-text available
Remote telepresence via next-generation mixed reality platforms can provide higher levels of immersion for computer-mediated communications, allowing participants to engage in a wide spectrum of activities, previously not possible in 2D screen-based communication methods. However, as mixed reality experiences are limited to the local physical surro...
Article
Full-text available
This work introduces RadVR, a virtual reality tool for daylighting analysis that simultaneously combines qualitative assessments through immersive real-time renderings with quantitative physically correct daylighting simulations in a 6DOF virtual environment. By taking a 3D building model with material properties as input, RadVR allows users to (1)...
Preprint
Full-text available
Indoor scene augmentation has become an emerging topic in the field of computer vision and graphics with applications in augmented and virtual reality. However, current state-of-the-art systems using deep neural networks require large datasets for training. In this paper we introduce GSACNet, a contextual scene augmentation system that can be train...
Preprint
Full-text available
The availability of rich 3D datasets corresponding to the geometrical complexity of the built environments is considered an ongoing challenge for 3D deep learning methodologies. To address this challenge, we introduce GenScan, a generative system that populates synthetic 3D scan datasets in a parametric fashion. The system takes an existing capture...
Preprint
Full-text available
Spatial computing experiences are constrained by the real-world surroundings of the user. In such experiences, augmenting virtual objects to existing scenes require a contextual approach, where geometrical conflicts are avoided, and functional and plausible relationships to other objects are maintained in the target environment. Yet, due to the com...
Article
This work proposes a new digital tool to assess visual comfort in side-lit indoor spaces, which: (i) provides useful and simple visualizations for preliminary glare studies, (ii) spatially maps glare potential, and (iii) reduces the computational overhead of annual visual comfort studies. The implemented heuristic spatially and temporally samples a...
Preprint
Full-text available
Spatial computing experiences are physically constrained by the geometry and semantics of the local user environment. This limitation is elevated in remote multi-user interaction scenarios, where finding a common virtual ground physically accessible for all participants becomes challenging. Locating a common accessible virtual ground is difficult f...
Preprint
Full-text available
This work introduces RadVR, a virtual reality daylighiting analysis tools, that simultaneously allows the analysis of qualitative immersive renderings and the assessment of quantitative data of physically correct daylighting simulations in a 6DOF virtual environment. With an end-to-end workflow and integration with commonly used modeling software,...
Conference Paper
Full-text available
This paper proposes a new heuristic to simulate and study the visual comfort aspect in the designing of Complex Fenestration Systems. The goal of the heuristic is two-folded, (i) provide useful and simple visualization tools for preliminary glare assessments of indoor spaces, (ii) reduce the computational overhead of extremely expensive annual glar...
Article
Full-text available
New sources of clean water are currently being researched and implemented, to face global water shortage. Techniques such as desalination or cloud seeding can have a high yield but present problems such as excessive energy consumption or consistent environmental impacts. Fog harvesting stands out for being considerably simpler and inexpensive compa...
Article
Full-text available
Fog harvesting stands out as a simple and inexpensive form to produce drinkable water from alternative sources, when compared to other available techniques. This paper presents results from a set of experiments performed on radiative condensers, deemed as a promising system to be integrated in building envelopes, following a literature review on fo...
Conference Paper
Full-text available
Analyzing the energy performance of complex building envelopes, determining the need for sun protection, and assessing the effectiveness of shading devices is a difficult problem. Modeling the complex geometry of facades and shading systems is very cumbersome and usually leads to computationally expensive energy simulations that cannot easily be in...
Article
This paper compares two different macroscopic light-redirecting fenestration systems (LRFS) using Radiance’s three-phase method. The goal is to assess the potential of simplified daylight metrics that are less computationally expensive, such as Daylight Factor (DF), in the optimization of LRFS. This work compares a highly specular LRFS optimized fo...
Article
Full-text available
This work presents a new methodology to automate the derivation of Building Energy Models (BEMs) from complex 3D Computer-Aided Design (CAD) geometry. The goal is to combine current parametric modeling, digital fabrication, and computer graphics techniques to automatically generate the geometric input of an energy model from any digital 3D model of...
Conference Paper
Full-text available
Visual Transmittance (VT) and Solar Heat Gains Coefficient (SHGC) are two key properties of window products. In hot climates, using low SHGC windows will decrease the solar gain potential through a given window, which in turn may greatly affect cooling loads. The VT values of most window products, however, are normally reduced due to the coatings,...
Article
Full-text available
Painting with Light is a user-guided interactive evolutionary system for daylighting design. It allows architects to use color to specify desired light levels in spaces, and searches for solutions that bring building geometry and materials close to performance targets. The proposed interface addresses a main limitation of generative design systems...
Conference Paper
GENE-ARCH is a Generative Design System that combines Pareto Genetic Algorithms with an advanced energy simulation engine. This work explores its integration with a Shape Grammar, acting as GENEARCH's shape generation module. The islamic patio house typology is readdressed in a contemporary context, by improving its energy-efficiency, and rethinkin...
Article
As the field of design automation and generative design systems (GDS) evolve, more emphasis is placed on issues of design evaluation. This paper focus on the presentation of different applications of GENE_ARCH, an evolution-based GDS aimed at helping architects to achieve energy-efficient and sustainable architectural solutions. The system applies...
Article
Full-text available
Gasification is a well-known technology that allows for a combustible gas to be obtained from a carbonaceous fuel by a partial oxidation process (POX). The resulting gas (synthesis gas or syngas) can be used either as a fuel or as a feedstock for chemical production. Recently, gasification has also received a great deal of attention concerning powe...
Conference Paper
GENE_ARCH is an evolution-based Generative Design System that uses adaptation to shape energy-efficient and sustainable architectural solutions. The system applies goal-oriented design, combining a Genetic Algorithm (GA) as the search engine, with DOE2.1E building simulation software as the evaluation module. The GA can work either as a standard GA...
Chapter
Full-text available
This paper describes research carried out to develop a parametric urban shape grammar for the Zaouiat Lakhdar quarter of the Medina of Marrakech, in Morocco. The goal is to create the basis for a system that could capture some features of the existing urban fabric and apply them in contemporary urban planning. The methodology used is described, fro...
Article
This dissertation dwells in the interstitial spaces between the fields of architecture, environmental design and computation. It introduces a Generative Design System that draws on evolutionary concepts to incorporate adaptation paradigms into the architectural design process. The initial aim of the project focused on helping architects improving t...
Article
This paper describes a studio experiment developed with the aim of exploring the design and fabrication of innovative roof systems based on ceramic tiles using digital technologies. History is rich in examples of the use of ceramic roof tiles since the ancient world. Today?s systems derive from such ancient systems and fall into several basic categ...
Article
This paper extends on a previous work on the application of a Generative Design System [GDS] to the evolution, in a computational environment, of three-dimensional architectural solutions that are energy-efficient and adapted to the climatic environment where they are located. The GDS combines a well-known building energy simulation software [DOE2....
Conference Paper
Full-text available
Conference Paper
Gasification is a well-known technology that allows for a combustible gas to be obtained from a carbonaceous fuel by a partial oxidation process (POX). The resulting gas (synthesis gas or syngas) can be used either as a fuel or as feedstock for chemical production. Recently, gasification has also received a great deal of attention concerning power...
Article
The Generative Design System [GDS] presented in this paper was developed to assist designers in researching low-energy architecture solutions. The GDS has the capability to evolve architectural forms that are energy-efficient, while complying to design intentions expressed by the architect, and responding to conflicting objectives. To achieve this...
Article
Full-text available
Many design problems related to buildings involve minimizing capital and operating costs while providing acceptable service. Genetic algorithms (GAs) are an optimization method that has been applied to these problems. GAs are easily configured, an advantage that often compensates for a sacrifice in performance relative to optimization methods selec...
Article
Full-text available
This paper presents a new generative design system to be used by architects in early to intermediate stages of design in order to help improve the environmental performance of buildings. Both thermal and lighting analysis are included in the system, together with methods to incorporate architectural design intentions into the evolutionary process....
Article
Much interest has been recently devoted to generative processes in design. Advances in computational tools for design applications, coupled with techniques from the field of artificial intelligence, have lead to new possibilities in the way computers can inform and actively interact with the design process.In this paper, we use the concepts of gene...
Chapter
This paper presents the application of an evolution-based generative design system to the creation of three-dimensional architectural form, guided by goals of daylighting use and energy conservation in architecture. The generative system is based on a genetic algorithm and a building simulation software, DOE2. From an initial schematic design and a...
Article
Full-text available
A new generative design system based on a genetic algorithm is tested within the framework of Alvaro Siza?s School of Architecture at Oporto, Portugal. The system works over a detailed three-dimensional description of the building and uses natural lighting and overall environmental performance as objective functions to guide the generation of solut...
Article
Full-text available
This paper investigates the possibility of encoding architectural design intentions into a generative design system, using as a test bed the School of Architecture at Oporto [Portugal], designed by Álvaro Siza. Based on language constraints derived from Siza's original design, the generative system [GS], consisting of a genetic algorithm and the DO...
Article
Much interest has been recently devoted to generative processes in design. Advances in computational tools for design applications, coupled with techniques from the field of artificial intelligence, have lead to new possibilities in the way computers can inform and actively interact with the design process. In this paper we use the concepts of gene...
Article
Full-text available
This paper describes a studio experiment developed with the aim of exploring the design and fabrication of complex architectural forms using ceramic elements. History has examples of double-sided curved forms built in ceramics. Such examples would not fulfill contemporary functional and aesthetic principles, neither would they be feasible or cost-e...

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Projects (4)
Project
Spatial computing experiences are constrained by the real-world surroundings of the user. In such experiences, augmenting virtual objects to existing scenes require a contextual approach, where geometrical conflicts are avoided, and functional and plausible relationships to other objects are maintained in the target environment. Yet, due to the complexity and diversity of user environments, automatically calculating ideal positions of virtual content that is adaptive to the context of the scene is considered a challenging task. The goal of this project is to develop system which can generate scenes or augment virtual objects via a contextualized fashion for spatial computing experiences