Recent Posts

1

General / Re: Help with Distorted Orthomosaic Issue

« Last post by vineg on Today at 08:24:00 PM »

Hi!

Orthomosaic is generated using top-down view by default with Z axis is up. You have Y axis pointing up. And you likely see the orthomosaic generated from a side.

You can try to generate orthomosaic in Planar Projection either in Front XZ or Back XZ Projection plane.

This problem may happen due to all photos being shot in one line and thus there is not enough reference data to estimate the vertical axis.

2

Bug Reports / Re: Scaling with scale bars destroys the model on export

« Last post by vineg on Today at 06:38:06 PM »

Looks like project somehow got referenced to the center of the earth ([R] flag near chunk and extremely negative height coordinates of markers?).
And as a result exported z values don't have enough precision to represent such low height values.

So maybe besides using local coordinates you can also remove check near markers/cameras to ignore incorrect reference before using "Update Transform".

3

General / Re: Help with Distorted Orthomosaic Issue

« Last post by AerialGlobeSSE on Today at 04:08:50 PM »

Here are zoomed in screenshots where you can see the distortion more clearly.

4

General / Help with Distorted Orthomosaic Issue

« Last post by AerialGlobeSSE on Today at 04:03:18 PM »

Hello,

Like I have done many times before am attempting to construct an Orthomosaic but I am looking for help trying to understand why when I get to the final step, the “Build Orthomoasic” tool does run successfully and the output is placed in the correct location, but it is badly distorted.

Approx 1020 images in the dataset were fully aligned. Orthomosaic and all previous steps were built off the mesh, and all the previous steps up until this point looked good including a tiled model ( with textures).
I can provide more details for the different parameters I used to build the mesh/ortho, but thought I would start with this general question if someone has run into  this before.  See attached photos of Tiled Model ( Undistorted) and Orthomosaic (Distorted) were taken from the same location in the dataset.

(This dataset was collected with a GoPro 11 Camera mounted to a vehicle)
Let me know if you have any other questions.

Thanks!

5

Bug Reports / Re: Scaling with scale bars destroys the model on export

« Last post by mysecretidentity on Today at 03:39:49 PM »

Hi!

Maybe model is exported in WGS84 coordinate system? Please, verify that Local Coordinates option is selected in Coordinate System parameter during export (attached screenshot).

Thanks for your reply.
Actually all my attempts were made with "local setting" on export window.  However I have found that preferences on reference tab are set to WGS... after switching to local I was finaly able to export model without errors. Rather strange, because suspecting that it might be a problem, I had already tried to clear reference in drone photos or even remove GPS metadatas from them before import.

6

Bug Reports / Re: Scaling with scale bars destroys the model on export

« Last post by vineg on Today at 09:37:54 AM »

Hi!

Maybe model is exported in WGS84 coordinate system? Please, verify that Local Coordinates option is selected in Coordinate System parameter during export (attached screenshot).

7

Camera Calibration / Re: 3D180 Camera Input?

« Last post by AVsupport on Today at 07:22:09 AM »

@Alexey, I cannot see the Master / Slave feature.. is this a PRO version feature only?
Have imported as 2 folders for each camera, will get recognized and asked if I want 1 ore 2 chuncks, but cannot set master or slave in camera calibration..??

8

General / Re: Shadows and bright spots in ortho after calibrating reflectance using sun sensor

« Last post by Moritz on July 16, 2025, 03:48:12 PM »

We are having the same issue using the Mavic 3M.  We placed various reflectance targets (20, 50 and 95%) and processed with all possible combinations including DLS and still getting half of the ortho darker even with projects in clear sky conditions.
Similar issue from another user:
https://www.agisoft.com/forum/index.php?topic=16986.0

9

Camera Calibration / Re: Bright and Cloudy Dark Spots in Orthomosaic After Reflectance Calibration

« Last post by Moritz on July 16, 2025, 03:46:29 PM »

We are having the same issue using the Mavic 3M.  We placed various reflectance targets (20, 50 and 95%) and processed with all possible combinations including DLS and still getting half of the ortho darker even with projects in clear sky conditions.

10

Bug Reports / Scaling with scale bars destroys the model on export

« Last post by mysecretidentity on July 16, 2025, 08:57:08 AM »

Hello
I recently noticed a strange behavior of the program.
A model generated with:
- about 1000 photos from a handheld camera
- about 500 photos from a drone
After scaling to real dimensions - using the scale bar tool, the exported model has corrupted geometry (attached photo). Both Agisoft Viewer, Windows 3D viewer, Meshmixer, etc.... open the model with corrupted geometry. After re-importing it into metashape it looks normal, before transformation or after undoing the transformation and exporting the model again, it looks normal.
I checked the recurrence of the problem for this set of images on other versions of the program and all of them from 1.7 to 2.2.1 give the same effect, even when repeating the procedure of aligning the images, generating and then rescaling the model from the beginning.
I have done several projects of this type before and never encountered this type of problem.
Any ideas?