1pm-5:30pm - Lv 5 Studio & Level 2 Labs
- Please bring to class an object that you would like to reconstruct and a camera to take photos with (including a way to transfer those photos to your computer). You can bring a photo set instead of an object, though having the object with you means that you can take more photos.
- For the camera, any camera will do... even a video camera. I mainly use my iPhone (which works ok), though obviously a better quality camera is always better!
- For the object, try to avoid reflective surfaces, try to get an object that has a lot of non repeating variation and many :feature" points. Your goal is to be getting your object's as "synthy" as possible.
- For the 2nd day we will start meeting at our regular time of 1pm - 5:30pm. We will begin in the Level 5 Studios, and move to the Level to Computer labs shortly after.
- We will be working in the labs for most of the day. In the first half of the class we will work on getting a seamless workflow on reconstructing your chosen objects, and taking it through to a printable ".stl" file. We will spend the rest of the day collecting photos of assigned buildings from the campus, and creating reconstructions of the buildings for use in the first assignment.
Day 1
12-5pm - Lv 5 Studio & Level 2 Labs
- Create a personal blog for this course, and give your blog address to one of the tutors. For Ease of use we suggest http://www.blogspot.com
- Sign up for a Photosynth account! http://photosynth.net/
- Read the Photosynth Photography Guide (.pdf) to help you take good sets of images. For today, either try to get some images of an object yourself, or use these images of the bagel.
- Open PhotoSynth application and add your images to a new Synth. Wait for it to process and check the Synthiness level. Try to get it to 100%.
- Download the PhotoSynth Toolkit 4, and extract it to the desktop. It is important that you extract the files from the zip file rather than just viewing them within the archive. Do this by pulling the "PhotoSynthToolkit4" folder onto your desktop.
- Follow the instructions in the Toolkit folder
1) Paste in your Synth URL, and specify where you want the PhotoSynth downloaded to. (in the folder select window, you can click "New Folder" button and rename the new folder to something meaningful. Select the newly created folder and click Okay). Say Yes to download thumbnails. This will start downloading your images, and may take a few minutes. The black box will disappear when completed.
2) Copy your source images into the /distort folder created within selected Photosynth download folder, and
3) Run the "Prepare for PMVS2". For your configuration options, for the moment use CPU = 4, level = 2, csize = 2, threshold = 0.7 wsize=7, min nb photos=3. For better resolution, use level 1 or 0, and csize 1, but this will take much longer. (here is a guide to the PMVS parameters)
4) Run the "launch_pmvs.bat" file generated. - (http://vimeo.com/14796939 has instructions for the older version of PhotoSynth toolkit, but is still helpful).
- Download Meshlab via http://meshlab.sourceforge.net/ - Download Meshlab v1.2.3
- Install Meshlab
- Running the "launch_pmvs.bat" file will have produced a ".ply" file in your /pmvs/models directory. Open Meshlab and open the .ply file.
- This video walkthrough details How To Mesh and Texture your model (from 12:30 onwards)
- Save your Mesh (not your pointcloud) as an OBJ, with Normals turned OFF. (normals break when importing into 3DS Max).
- Open 3DS Max... Further work tomorrow!
- Blogs and Video Tutorials
- CameraExport: Fixing PhotoSynth focal length issues
http://vimeo.com/17465518 - Creating Textures from reconstructed point-clouds
http://vimeo.com/14894509
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