Through the Interface

Introducing Central64: an open source implementation of central pathfinding

I’ve posted in the past about work done by Autodesk Research – in particular by Rhys Goldstein – to implement a more natural-seeming (but still direct and efficient) pathfinding algorithm. This is the algorithm at the heart of our Space Analysis package, and you can find details on how it works in these previous posts: A paper on our space analysis algorithm in the Journal of Artificial Intelligence Research Explaining how path counting helps simulate natural navigation Visibility in space analysis: an explainer The above posts reference these articles/papers that have been published elsewhere: Path Counting for Grid-Based Navigation... Read more →

Voxelising point clouds in Dynamo with VASA

Last week we saw a Dynamo graph that imports a point cloud from an ASCII-based format to specify the initial locations for a fun flocking simulation. This week we’re going to look at a graph that uses a similar import technique but rather creates a voxel model based on the point cloud: The main difference from the previous import code is that rather than returning a list of Point objects, we’ve tweaked the code to return 9 doubles for each point that are taken as triangle definitions. The little secret is that the triangle’s vertices are coincident: we use... Read more →

CAAD Futures 2023 at TU Delft from July 5-7

For the last few years I’ve been on the scientific committee for a conference called CAAD Futures. My involvement began with the 2021 edition of the conference: I reviewed several papers submitted to the conference and also ended up being invited to talk during one of the conference’s workshops (it was called Beyond generative Computer Aided-Architectural/Urban Design (CAAD/CAUD) and was hosted by Todor Stojanovski). That last edition was held in Los Angeles – and the workshop hosted in Stockholm – but I only participated remotely. This year’s edition is being held in Europe, at TU Delft in the Netherlands,... Read more →

Visibility in Space Analysis: an explainer

Our resident spatial-analyst-in-chief, Rhys Goldstein, has gone and done it again. After his very well-received Medium post explaining grid-based pathfinding was published in Towards Data Science, Rhys has now had a follow-up post published that explains our work on visibility. And it’s fantastic! Assessing visibility and pathfinding in 2D and 3D spaces are really cornerstones of our work to assess how occupant-centric prospective building designs are likely to be. This is a critical capability for us in our day-to-day work, but it's also very interesting from an algorithmic perspective and Rhys's article helps create awareness of these techniques with... Read more →

Building the future of AI infrastructure with Autodesk software

It’s been really exciting – and sometimes even overwhelming – to see the fast-paced developments in the space of Generative AI over the last few months. It’s clear that Large Language Models (LLMs) and other AI systems are increasingly playing a key role in our Future of Work. One thing that’s often glossed over is the need for human input when building and refining these models: aside from being trained on vast datasets generated from websites and the broader internet, huge teams of people are helping train these AI models, providing “human processing within a computational framework”, to quote... Read more →

Dynamo Office Hours showing Space Analysis and VASA

Last week Rhys Goldstein and I had a blast joining Sol Amour and Jacob Small during the Dynamo Office Hours session on Packages of Note, something I mentioned in a recent post. We spent some time stepping through a few samples for both Space Analysis and VASA, to give a rough sense of what’s involved in using each. Next week I’m heading over to Denmark for the first half of the week, where I’ll be attending the APS Sustainability Accelerator in Copenhagen. If you’re going to be in Copenhagen next week and want to meet up for a chat,... Read more →

An introduction to Space Analysis and VASA during the next Dynamo Office Hours

During the next Dynamo Office Hours – being held on March 9th, 2023 at 1pm EST – Rhys Goldstein and I will be joining Tiana Dame, Sol Amour and Jacob Small to talk about “Packages of Note”, which will include an introduction to the Space Analysis and VASA packages. I’m sure it’s going to be a fun event – it’s always a blast catching up with Sol and Jacob – and a good chance to learn about a few Dynamo packages developed and maintained by Autodesk. The focus will be on introducing the various packages – rather than going... Read more →

Explaining how path counting helps simulate natural navigation

Rhys Goldstein, an Autodesk Research colleague with whom I’ve had the great pleasure of collaborating on various projects, over the years, has written an excellent explainer article that has just been published in Towards Data Science. This is intended as a companion to our paper published in the Journal of Artificial Intelligence Research, something I talked about in this recent post. Firstly, though, a quick shout-out to Zach Kron, who kindly allowed an image of one of his watercolours to be used in the article; one he created with the help of Dynamo and the Space Analysis package, which... Read more →

Come and see the 5m Dar Smart Bridge at Autodesk University 2022

In a recent post I hinted at a really impressive project that is being unveiled today in the exhibit hall of AU 2022. (My involvement was as usual pretty minor, primarily relating to data visualization, while the really impressive work was around designing and printing it.) The project is a 5 metre long single-cantilevered (in terms of the printing – it’s supported at both ends when in use) smart bridge, 3D-printed from recycled PETG and glass fibre in our Boston Technology Center for Dar. Here’s a video shared via LinkedIn that describes the project and a photo of Steve... Read more →

Human-centric building design

In a recent post, I mentioned that I’ve been asked to help lead our efforts in a particular area of research. I was deliberately vague at the time. Now, with Autodesk University 2022 around the corner, it seems a good time to say more about this. I hope it stimulates some interesting discussions at the event. As a company, one of Autodesk’s core interests is to enable the design and creation of healthier, safer, more resilient spaces. We want to explore tools for designers and architects that help them create buildings with more attention to the occupants. In the... Read more →

Some exciting enhancements in Dynamo 2.15

Dynamo 2.15 was released into the wild, last Thursday (at least via Dynamo Core, if not yet Dynamo for Revit), and as Sol Amour says in his blog post, it is “an absolutely epic release”. I’d seen it flash by, but only sat up to take proper notice when Sol pinged me on Twitter to mention that includes capabilities inspired by Warnamo, a package I wrote to help keep track of warnings and errors in Dynamo. So I decided to dig into some of the new features – a great resource for this being the habitually comprehensive Dynamo release... Read more →

A paper on our space analysis algorithm in the Journal of Artificial Intelligence Research

I’m very happy to share the news that a paper authored by current and former members of Autodesk Research has been published in the open access Journal of Artificial Intelligence Research (JAIR). The paper is entitled “Path Counting for Grid-Based Navigation” and talks in depth about the algorithm developed to power the Space Analysis package for Dynamo. Here’s the paper’s abstract, to tickle your fancy: Counting the number of shortest paths on a grid is a simple procedure with close ties to Pascal’s triangle. We show how path counting can be used to select relatively direct grid paths for... Read more →

A new book on Innovation in Construction

The Autodesk Construction Cloud team kindly shared a post on LinkedIn, last week, about a project I participated in. There’s a new book from Springer on “Innovation in Construction” for which I contributed a chapter called “Cutting-Edge Practical Research on Generative Design, IoT and Digital Twins”. This chapter weighs in at 29 pages – of an overall 454 for the book – and here’s its abstract: This chapter explores two areas of research undertaken by Autodesk over the last decade and how they both have the potential to impact the construction industry. The first area relates to the Internet... Read more →

Three AU proposals to vote for and a deadline reminder

It’s the last few days to submit your class proposals for Autodesk University 2022 in New Orleans. The Call for Proposals closes on April 15th. I’ve now submitted three classes, myself, and would greatly appreciate you voting for the one(s) you would like to see part of the event. This is whether you intend on being there in-person in New Orleans or not: the vast majority of classes will either be livestreamed or recorded and made available on-demand for virtual attendees. Here they are. Voting is open until April 25th. Voxel-based Architectural Space Analysis inside Dynamo Building Digital Twins... Read more →

BIM World Paris 2022

On Monday I hopped onto the train to Geneva and from there onto the TGV to Paris Gare de Lyon. I was in Paris for BIM World, where we displayed the Dar 2m Smart Bridge. It was my first time seeing the bridge in person, which was a really exciting moment for me. After checking into a very nice little hotel in the 6th arrondissement I headed to the conference centre to help with the setup. The bridge was already unboxed and hooked up when I arrived. Pete Storey had some wires to connect to get it up and... Read more →

Vote on my (and others') AU 2022 class proposals

I’ve gone ahead and submitted two class proposals for Autodesk University 2022. If you think they should be part of this year’s event, I’d certainly appreciate you voting for them: Voxel-based Architectural Space Analysis inside Dynamo Autodesk Research first created the Space Analysis toolkit - and its accompanying Dynamo package - to support 2D generative design workflows such as those used during Project Discover for the architectural layout of Autodesk's Toronto office. VASA - short for Voxel-based Architectural Space Analysis - takes these techniques to the next level, allowing the geometric exploration of architectural spaces in 3D for activities... Read more →

A video on using sample points for pathfinding and sensor placement with VASA

Rhys Goldstein has now published Part 5 in his video series on using VASA. In it, Rhys walks through the latest two samples that come with VASA 0.2.0, one of which I talked a bit about in a recent post. Both samples make use of sample points – one in the context of aggregating path information, while the other uses them (as we’ve seen) for sensor placement. Both workflows have significant potential for use in the context of generative design – something I hope to dig into at some point in another post. Hopefully you’ll find this video –... Read more →

Placing sensors and evaluating their coverage using VASA

Last week I mentioned the release of VASA 0.2.0, which includes some new nodes and samples that raise some really interesting possibilities. I couldn’t help but come back to the “sensor coverage” sample (named 12-VASA-Sensor-Coverage.dyn), in particular, as I can see so many possibilities for its use. Here’s the description Rhys Goldstein included in the sample: A demonstration of how to combine sample point generation and proximity operations to select locations on walls and ceilings using the Voxel-based Architectural Space Analysis (VASA) package. In this example, the locations are used to place sensors and approximate their coverage. First, sample... Read more →

VASA 0.2.0 is now available

Rhys Goldstein has been busy implementing some new features in the Voxel-based Architectural Space Analysis (VASA) package. I’ve just published a new version to the Dynamo Package Manager containing the following enhancements: Added "PathModel.GenerateSamplePoints" and "DistanceField.GenerateSamplePoints", which generate sample points according to an approximate spacing parameter. Added proximity operations ("NearestFilledAlongX", "NearestFilledAlongY", "NearestFilledAlongZ", and "NearestFilledHorizontally"), which find the filled voxel nearest to a point. Added special operations ("AutoCrop", "AutoSplit", "DensityMap", "DensityMapWithWeights"), which automatically crop, split, and create density maps from voxel models. Added new examples ("11-VASA-Path-Density.dyn" and "12-VASA-Sensor-Coverage.dyn"), which demonstrate the new features. Fixed a bug in the fill from... Read more →

A video on visibility and daylight analysis with VASA

Rhys Goldstein has published the third part of his video series introducing capabilities of the VASA (Voxel-based Architectural Space Analysis) package for Dynamo. This part focuses on how VASA can perform visibility and daylighting analyses. Here’s an animation showing some of topics covered: And here’s the video itself: We’re taking a break from this series now until the New Year, when Rhys will be sharing a walkthrough of the remaining VASA samples. Read more →