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Scaniverse from Niantic is (really) free on iOS and makes this almost trivial: https://scaniverse.com https://scaniverse.com Apple’s Object Capture looks impre

by akerr 4y ago

Scaniverse from Niantic is (really) free on iOS and makes this almost trivial: https://scaniverse.com https://scaniverse.com Apple’s Object Capture looks impressive too: https://developer.apple.com/augmented-reality/object-capture/ https://developer.apple.com/augmented-reality/object-capture...

ge96 4y ago
somewhat related, apple room plan is really cool
Daub 4y ago
As far as I can see, It uses LiDAR. Unlike photo-based PG, LiDAR does not get confused by lighting conditions. It is also good for large scenes and environments. The downside of apples lidar is that the mesh is too low resolution for most practical uses.
- geerlingguy 4y ago
  I've been playing around with LiDAR apps and I agree; they are amazing for quickly building up models, but especially for anything not room-scale, the resolution is too low for detail work (like 3D printing reproduction) without a lot of touch ups. More advanced apps seem to combine the data but take a bit longer to come up with a usable model or require post processing.
- jonas21 4y ago
  Scaniverse uses both LiDAR and photogrammetry. There are some examples here: https://sketchfab.com/scaniverse/collections/made-with-scaniverse https://sketchfab.com/scaniverse/collections/made-with-scani... In general, I think the iPhone LiDAR works quite well, even at small scales.
  - Daub 4y ago
    The LiDAR on the iPhone is limited, but fun. Commercial lidars are hella expensive (last time I looked). Looked at your sketchfab collection. Lovely work. For those who don’t know, Sketchfab allows you to preview the mesh using the layers button. Your bread roll model is nicely detailed with quite a tight mesh. It is possible to model anything in 3D, but for complex (organic or natural) objects, nothing beats PG. Your bread roll model I would certainly use in middle distance. However, for close up ‘her’ shots all PG acquired models fail, unless they are significantly retopologized. The outcome would be a tidy quad mesh. Having been retopologized, I would then have to project the original textures onto the new model. The origami RGB imformation would then have to have its lighting information removed, either in photoshop or Ali soft delighter. In this way, I would be able to independently light it inside of my compositor or 3D app. The final task would be to cook up some kind of roughness map. Likely I would derive this from the RGB map. For those who are interested, my link below leads to a resource that details this process.
- causality0 4y ago
  What I'd love is software that starts with a scan and then calculates a confidence level for all the vertices, which it would then let you edit with exact measurements or even intelligent questions like "is this part circular?"
- codetrotter 4y ago
  > Unlike photo-based PG, LiDAR does not get confused by lighting conditions. I tried to use the app that GP mentioned, inside of a dark room. This confused the app and it thought I was in motion.
  - secretsatan 4y ago
    Most of them use the system AR sdks, which still relies heavily on the cameras for feature detection, if it’s too dark they have a hard time anchoring themselves to the scene

by akerr 4y ago

ge96 4y ago

somewhat related, apple room plan is really cool

Daub 4y ago

As far as I can see, It uses LiDAR. Unlike photo-based PG, LiDAR does not get confused by lighting conditions. It is also good for large scenes and environments. The downside of apples lidar is that the mesh is too low resolution for most practical uses.

geerlingguy 4y ago
I've been playing around with LiDAR apps and I agree; they are amazing for quickly building up models, but especially for anything not room-scale, the resolution is too low for detail work (like 3D printing reproduction) without a lot of touch ups. More advanced apps seem to combine the data but take a bit longer to come up with a usable model or require post processing.
jonas21 4y ago
Scaniverse uses both LiDAR and photogrammetry. There are some examples here: https://sketchfab.com/scaniverse/collections/made-with-scaniverse https://sketchfab.com/scaniverse/collections/made-with-scani... In general, I think the iPhone LiDAR works quite well, even at small scales.
- Daub 4y ago
  The LiDAR on the iPhone is limited, but fun. Commercial lidars are hella expensive (last time I looked). Looked at your sketchfab collection. Lovely work. For those who don’t know, Sketchfab allows you to preview the mesh using the layers button. Your bread roll model is nicely detailed with quite a tight mesh. It is possible to model anything in 3D, but for complex (organic or natural) objects, nothing beats PG. Your bread roll model I would certainly use in middle distance. However, for close up ‘her’ shots all PG acquired models fail, unless they are significantly retopologized. The outcome would be a tidy quad mesh. Having been retopologized, I would then have to project the original textures onto the new model. The origami RGB imformation would then have to have its lighting information removed, either in photoshop or Ali soft delighter. In this way, I would be able to independently light it inside of my compositor or 3D app. The final task would be to cook up some kind of roughness map. Likely I would derive this from the RGB map. For those who are interested, my link below leads to a resource that details this process.
causality0 4y ago
What I'd love is software that starts with a scan and then calculates a confidence level for all the vertices, which it would then let you edit with exact measurements or even intelligent questions like "is this part circular?"
codetrotter 4y ago
> Unlike photo-based PG, LiDAR does not get confused by lighting conditions. I tried to use the app that GP mentioned, inside of a dark room. This confused the app and it thought I was in motion.
- secretsatan 4y ago
  Most of them use the system AR sdks, which still relies heavily on the cameras for feature detection, if it’s too dark they have a hard time anchoring themselves to the scene