Stikkordarkiv: Grape Architects

RTC Budapest 2015 -this time as a speaker

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RTC Europe (Revit Technology Conference) is an annual educational and networking event for BIM users worldwide. This is the place to be for top notch sessions, sharing of knowledge and catching up on the latest trends within digital tools. I have been to every RTC event since it started here in Europa and this time Budapest was the luck city to host this event.

This year, I was not only a delegate at the RTC Europe in Budapest, but I was also a speaker. Together with  Margarida Barbosa from Beck group we delivered a session on «Using Photogrammetric Surveys at Architectural Offices» where we explained the potential of using photogrammetry in the daily workflow.

By combining the eminent knowledge Margarida has on this subject, with my experience from work, we delivered a 75 min session for «all levels». It was a joyful experience and we were super proud to be rated no. 5 top speaker at the conference. To see the entire top ten list, check out the blog posted by Jose Fandos.

Do not hesitate to contact us if you have any questions related to this subject. We are happy to share our discoveries.

See also the review by Jack White, BIMcrunch Editorial – RTC Europe 2015 Review

 

See you in Portugal next year!

 

I have a video but all I want is a beautiful 3D model

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Instead of taking multiple photos of an object to create a 3D model, you should consider capturing video of the object instead. As we all know, a video consists of multiple frames that are stacked together and the frame rate is somewhere between 24 and 30. So basically you can just extract the frames from the video and use these frames to create a 3D model by using photogrammetry.

This is one way you can do it:

  • open your video in Photoshop
  • press the «Render Video» button in your «timeline» tab
  • select the «Photoshop Image Sequence» and be sure you have maximum quality for the JPG´s
  • if you are going to use Memento, you can not exceed 250 photos. I usually divide 250 with the duration of the video in seconds. In this way, I will not extract more than 250 frames
  • hit the «Render» button and wait

You have now approximately 250 photos waiting for you to import into Memento and then it is just to wait for the processing to be completed.

Voilà!

PS! I have all my personal videos stored in «Google Photos». Have Google ever considered starting making 3D model effects from these videos by using photogrammetry, or are they just waiting for «Google Tango» to make the first dance…?

Combining Google Maps, photogrammetry and pointcloud into Revit

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I guess I have a hang up on photogrammetry lately. But I enjoy the way you can move data quickly in an effortless operation.

Google Maps is getting better and better, and to be honest I am really amazed how you can view an entire city in great detail. We use Google Maps in our office to investigate exciting sites and surroundings, and I have thought that it would have been valuable to import this information into Revit.

And guess what, by using photogrammetry I made it happen:)

In short:

  • open google maps in full screen and find your building site
  • rotate the view around your site meanwhile you press «print screen» as often as you wish
  • with dropbox installed, the «print screens» should be perfectly downloaded automatically
  • you should crop your photos to get rid of unwanted text/labels. You can do this by making an «action» in Photoshop and then choose «File» – «Scripts» – «Image Processor» to crop every photos in a folder
  • then you make a mesh in Memento with your cropped photos and export it in RCP
  • import it into Revit and enjoy

PS! For fun, I also tried to do photogrammetry with Google Streetview. It was not successful but I will try again later. I do have some ideas:)