HOW TO DO TURNTABLE PHOTOGRAMMETRY CHEAP FREE AND EASY with AGISOFT METASHAPE/PHOTOSCAN
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- Опубликовано: 11 сен 2024
- I've been increasing my familiarity with photogrammetry using Agisoft Metashape (formerly, Photoscan) for personal edification and for an upcoming grant I'm writing, and I thought I'd share some of the info I gained to help other amateur designers and morphologists who could use this great technology, but who may be stumped by some of the instructions available online.
I hope this video inspires you, and that you have a blast doing photogrammetry.
Let me know what you think! PLEASE SHARE THIS VIDEO far and wide.
PS: You can download the free program Instant Meshes, from this webpage.
instant-meshes...
Happy creating
It took me 2 days to gather all the info that you share in this video and I'm soo mad that I missed this video
Nice video, Nice setup I'm printing a turntable now and will see the results later
Update! I combined this with a bunch of other tutorials and (eventually) got some satisfying results!
LINK: skfb.ly/6VZNr
Its a 28mm miniature, so I ended up going with a Macro lens + Polarizing filter.
My most successful scans were with a pure white background. I cranked my camera settings to obliterate the background, confirming the overexposure in my external monitor. A black background may have also worked, but pink & green backgrounds gave me a lots of trouble as keying backgrounds bears its own challenges.
I use the same (or similar) turntable as you, and a cheap sliced-up black velvet jewelry stand to hold up the mini. I learned that black velvet basically has no reflection due to its texture & gave me no problems.
One thing that I believe helped capture & preserve a lot of detail: Try to mount the camera to your tripod vertically and fill the frame with as much of the entire subject as possible. Otherwise there is a lot of empty background that could potentially lead to scan issues.
Sounds like you've had a lot of progress! I'm really happy i was able to help you get started. I've also had some improvements with similar approaches as you've recommended. I'm currently looking for an affordable macro lens for my camera, so hopefully soon i can get some even better scans!
Check out how I'm making money from my photoscans here:
etsy.me/3fVQ49d
11:32 “now that shit’s tight right there” 😂😂🔥
Thanks! How'd you happen to get one of my illustrations as your avatar, btw?
Using this tutorial and loving my results! I’m still in the depth map -> texture stage and I wouldn’t have gotten this far without you.
Thank you! Always glad to help :)
You're fighting your own background music., You should lower it.
Is there a way to do this on images? I started to use the Subject/Invert method but doing that on more than like 50 photos is ridiculously time consuming. I couldn't find a way to automate that process. I guess I could use a mouse macro system like gamers used to use to automate harvesting and have it run overnight lol.
If you still need help, we've massively improved our process and happy to lend some advice.
@@trickleaf6071 Well I figured out how to do it automatically finally, the problem is though that when I do a lot of the times it leaves stuff in or cuts out stuff....like if I do close ups where the entire object isn't visible in the image it will crop parts around the edge out. This still becomes too time consuming because the issue is now that I have to go back to all of them and fix them. I have so far only found one other method using 3DF Masquerade to mask them, but it has similar issues with missing stuff even if it's all visible in the picture.
So, if you have a good workflow, I would really love to hear it. That would be great.
keying out backgrounds is not necessary at all if you have a the right setup. Its not a big secret that shooting on a white or black backdrop eliminates this issue entirely.
Yep, since posting this video as complete amateurs (as stated in the video) we've massively improved our workflow. Thanks!
Have you taken a series of photographs or a video and separated the images?
Is there a way then to edit the marker out of the texture then that you put on the back of your object? Can you edit it out in Metashape? Thanks
love the music!
among us
Any chance you can share what the turntable you use please? Everything in this video has been so helpful 🥹
Hello, thank you! We use a standard turntable from Amazon, it doesn't have any special settings or features. But we've found an improved workflow and have retired the method described above. Maybe we'll release a new instructional soon :)