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Topics - barrubba

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General / Dense point cloud to Autocad
« on: June 16, 2023, 11:49:05 AM »
I've generated a dense cloud of around 60 millions of points.
I need to work the cloud on autocad.
Is the suggested workflow to export the cloud to recap as PTS or LAS, then export an RCP to attach in autocad?
The dense cloud can be even generated at a lower quality, considering the finality of the job.
Thank you

General / No gcp. but Disto Laser Leica
« on: January 23, 2023, 12:27:03 PM »
We need to survey on a square area of 2 kilometers side, 30 small spot areas surveyed by drone.
Each area is 50 to 100 or 200 meters side.
The client does not want too accurate survey at this stage and therefore no gcp gps. He asked me if using measurements taken on site with Disto Laser Leica, can allow us to have higher accuracy, although not very high.
For now, the purpose is to calculate the approximate volumetries of the various buildings in these 30 areas.
On metashape can we use, for example, a couple of measurements for each of the 30 areas and then scale the cloud based on all 60 measurements?
Or advise how you can do that.
Thank you

General / Real Moving objects to virtual 3d engine
« on: March 09, 2022, 05:31:24 PM »
I already have a lot of experience in photogrammetry and 3d rendering.
A client asked me something unique for my experience.
He wish to transform a real moving subject (a singer) into an animated 3d model, to be imported into a virtual environment where the fans with virtual devices like Oculus, can go near the artist while singing.
I have already pro equipment like greenscreen, cameras and camcorders, but I have no idea how to detect the moving subject in 3d point cloud and than animated geometry.
Thank you

General / ERROR: Invalid marker id
« on: January 08, 2022, 01:56:26 AM »
i get error! lost all the project!
before this error i have imported some markers (exported from the same project but in another remote machine)
How can i solve?
i can send you some zip project files to check the issue?

General / Dense cloud with Sky noise and Orthophoto issues
« on: December 30, 2021, 10:06:42 PM »
Check this video from viewport... There is a lot of noise in dense cloud
Hot to solve?
Never had any problems in similar previous jobs!
Thank you and happy new year!

General / negative altitude from p4pro v2
« on: April 14, 2021, 02:57:28 PM »
I've a big problem with altitude
- gps real take off altitude 23m asl
- mission altitude 60m
- image z altitude -13m

Script you have talked about many times doesn't work.
changing altitude from images options doesn work
how i can solve!!
please it's very urgent!

General / export a cad version of a 3d building survey
« on: October 30, 2020, 03:08:17 AM »
Hi all!
My client want to compare a 3d dwg of a project with the current building state.
So he asked me to do a building drone survey to generate a 3d that he will import in cad to compare as said.
I've told him that is impossible to import on the fly the model. becouse of million of polygons
Where is the solution? How i can edit the 3d to export a cad version? obviously mantaining as much as possible the exterior shape
I have to remodel from scratch in 3dsmax??
Thank you

General / building volume and target
« on: October 29, 2020, 04:42:44 PM »
Hi i have to do a building drone survey to calculate volumes of a building.
i need to place target and/or coded target on facades?
i'll do either a gps ground survey of near streets.
Thank you

General / wrong UTM! i have to recalculate all from scratch!?
« on: August 10, 2020, 04:47:47 PM »
Hi all!
at the end of job, checking pdf report i've noticed wrong utm (43n instead of 34n).
I've generated dtm and orthophoto.
How i can solve? I have to redo all processing?

General / Full of glass building
« on: August 08, 2018, 12:03:56 PM »
Please give me some tip to work on this kind of buie.. Many windows and is not possible to mask all of them. Thank you.
Using p4p Pro.

General / HELP : 3dsmax rendering - texture realistic setting
« on: September 01, 2017, 06:45:06 PM »
I create 8000x3 texture from photoscan, Generic+mosaic setting
export in fbx with ONLY export texture in jpg checked
I don't like rendering in 3dsmax, not about color correction that i'll do on photoshop, but regards geometry realistic..
I'm wrong in some step?
I've decimated mesh..
How can i reach a Photoscan viewport+texture look?

3dsmax smooth and PScan decimation

3dsmax smooth appliyng

3dsmax texture smooth

Photoscan viewport

General / Fbx to 3dsmax: texture export advice
« on: August 29, 2017, 11:42:44 PM »
i need to export fbx to 3dsmax for rendering. It's a interior church survey, 12m total height)
can Generic, average, 8000x4 give me good sharp texture?
(64gb ram, gtx 1060 3gb)
i'm exporting multiple piece of mesh, and at the end, importing all in a single max files..
it's a good workflow?
maybe some parts will be coincident and would need some mesh editing 

General / no point zoomable in viewport
« on: August 16, 2017, 07:23:13 PM »

in shell i read 17.000.000 point extracted but in viewport are not zoommable! But i can select 182.370 points with selection tool as you can see on the center of images
Phantom 4 pro.
Interior church.


General / differentiate 2 chunk quality
« on: May 09, 2017, 09:21:30 AM »
i need to work on a huge terrain area but only on a central portion of it i need to compute very high dtm mesh quality, to speedup entire work, and avoid ram problem.
The rest of the terrain can be computed with lower quality.
the main area is a rectangular and the portion interested is another rectangular area in the centre.
I have now computed athe entire area high quality dense cloud. I've cloned chunk and removed on each the part i'm not interested.
Is this correct workflow?
select central part on first chunk and deleted, and then inverse reselect the area on second chunk has been not accurate

General / cloud deformation after "Optimize camera alignment"
« on: April 24, 2017, 07:54:09 PM »
1. i've aligned photos with check on.
2. uncheck all photos
3. import 8 gps gcps coordinates and pin all markers on all photos,
4. click on optimize and result is a distorted cloud


any other advice, reading photo data in attached file?

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