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Messages - renevg

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1
General / Re: show images mode
« on: Today at 01:03:30 PM »
Then zooming in or out might do the trick.

2
General / Re: scale bar size keeps changing from my input
« on: January 08, 2024, 08:46:07 AM »
thanks tazzo, but
when using control scale bar (so checked), the scale should be fixed (as in fixated) for that scale bar. The model should alter it's shape conforming to the control scale bars. That's the whole point of having control scale bars. But I must be making a error in reasoning? just like to know.

3
General / Re: Turntable Object Process Flow
« on: January 08, 2024, 08:39:31 AM »
I'd like to add to my comment in reaction to johnnokomis:
keeping markers is essential in this workflow. This gives scale to the project. Make sure you have markers which are only numbered once in the first chunks so there is no overlapping. With turntable I use coded targets that get detected with 'Detect markers' and get a number. (don't use same targets for both chunks). You can print metashape targets or buy commercial ones. check the known distance between the targets and use the distance for your scale bar. That way you've got images with just the object + targets/markers with known distance in your merged chunk. 

4
General / Re: Turntable Object Process Flow
« on: January 07, 2024, 10:14:22 PM »
Hi colcrabs,
I pretty much have your workflow and it's working for me.
I try to get the best input possible; this is key.
estimate image quality to keep the best.
detect markers at each chunk and check if markers are ok in photos.
align photos low or medium quality each chunk (batch)
build model and use bounding box to cut away pieces not needed (lost part of object will be in other chunk)
create model and generate masks from model
If you have photoshop you can skip modelmaking by building your masks there (both shape of model and focus blur can be masked there and merged with existing masks in metashape)
check masks
merge chunks. Markers and scale bars will be in new chunk.
start over with your photos with the masks to keypoints: align, high quality
Optimize your tie points:
1.   Reconstruction uncertainty
2.   Projection accuracy
3.   Reprojection error
mind you: deleting tie points any different way than through optimization doesn't work. They will be back in dense cloud.
build your product; generate depth maps, dense cloud,
you can clean up dense point cloud by filtering: filter points by confidence I usually use.
generate mesh
check your mesh with model>confidence. preferably darkblue. If so: be happy. Red or yellow parts? Consider taking new photographs and add them to the project.
build texture if needed
Every project has it's own way of best workflow in my opinion.
good luck.


5
General / Re: scale bar size keeps changing from my input
« on: January 07, 2024, 02:13:00 PM »
Hi
here is a screenshot of what I mean. I've got 3 control scale bars. Shouldn't they be without error because it's a given distance? the update button has been pressed.

6
General / Re: scale bar size keeps changing from my input
« on: December 29, 2023, 12:39:39 PM »
Hello
@ jkova96:
thanks, for your sharing of knowledge. I should have been clearer. Indeed a script might be the answer.
best wishes,
René

7
General / Re: scale bar size keeps changing from my input
« on: December 24, 2023, 04:40:28 PM »
hello,

I 'm using a turntable with fysical scalebars with targets, 10 cm apart. (or any given distance for that matter). So size is known. Targets get recognized. I create scale bars from them. I check mark the scale bars and update transform.
I guess what I'm asking is: is there a way to absolutely fix the 10 cm distance, like one can fix the camera calibration with 'fix parameters'?
I know we can change the  marker accuracy(pix) and the scale bar accuracy (m) in reference settings, and accuracy settings in the reference pane. and by check mark the scale bar it has no errors. I have quite a few scale bars from targets.

thanks for your answer.
René

8
General / Re: scale bar size keeps changing from my input
« on: December 23, 2023, 10:57:04 AM »
anyone?

9
General / scale bar size keeps changing from my input
« on: December 22, 2023, 10:55:41 AM »
Hi,
I tell metashape the distance between two targets on a scale bar is 100 mm. I change both markers to control points by enabling the markers and the scale bar in the reference pane/source tab.  Still metashape tells me it's got distance errors.   How can I fix this? I thought creating control points would do this.
Thanks,
René

10
General / Re: Agisoft Metashape 2.1.0 pre-release
« on: November 15, 2023, 04:19:55 PM »
when exporting model + textures it doesn't export the displacement map. The other textures are fine. Exporting displacement map manually  is sometimes fine, sometimes it exports a black jpg.
Would be nice to build all textures in batch.
regards
René

11
General / measured values of quality
« on: August 26, 2023, 09:55:43 AM »
I've got a question about quality control. 
When using my photographs in metashape the mesh usually looks good. But that is not enough for me.
When using it for conservation documentation and scientific imaging it needs to provide known measured values.
Is there a way to objectively measure the quality of the point cloud and mesh?
Thank you

12
General / Re: Metashape to Substance Painter with UDIMs
« on: February 16, 2023, 10:37:14 PM »
@wojcek
I've tried it with 10 tiles and with 20 tiles, and I can get them opened perfectly, after editing the obj. I use metashape 1.8.5 and substance painter 8.3.0 build 2094 with "use UVtile workflow"checked.

13
General / Re: Metashape to Substance Painter with UDIMs
« on: February 13, 2023, 10:46:54 PM »
some new information;
metashape doesn't really export obj with udim, but the program exports mesh with submeshes. These submeshes get their own materials applied. Painter creates a texture set for each material.
My solution:
edit the obj and delete all lines with mtl  (like in newmtl) and save as a new .obj.
That you can import in painter and you get 1 texture set with a number of UV tiles.
Hope this helps
Regards,
René v G

14
General / Re: Metashape to Substance Painter with UDIMs
« on: February 12, 2023, 10:13:26 PM »
I had this problem and found the solution in editing the obj with udims from metashape in c4D with arnold. (redshift will work as well probably). Then the obj will be imported in Painter correctly.

15
Bug Reports / Re: UDIM issue with 1010 texture
« on: February 12, 2023, 05:27:21 PM »
@mikeyjump
are you shure the other 9 tiles are imported properly in Painter? it's a problem I've come across: in painter each tile gets its own texture set, like mentioned in https://www.agisoft.com/forum/index.php?topic=14965.msg65491#msg65491
I didn't find the solution yet so if you managed, please let us know.

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