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Topics - hairyfreak

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General / "can't compress image" texturing error with EXR
« on: May 01, 2022, 12:36:25 PM »

I was attempting to build a texture using 32bit OpenEXR.
All looked well until the end when it gave me the message "can't compress image".
And no texture file was produced

I've not managed to find this on google or the forums.
Any idea what the problem is.

Metashape pro 1.7.5 Build 13229
mac os
iMac i9, 40GB RAM

Bug Reports / Mask defocus area works then un-works
« on: December 30, 2021, 02:00:20 PM »

After not having. much luck with the generate masks command, I've tried again and watching more closely.


When I run the command, I will see a mask appear on the image, that looks right.  Before it then disappears and is replaced by a mask that follows only the outside bounds of the mesh. Not the focus area that was initially selected.

Changing the defocus area vlaue, will change the shape of the initial mask that appears briefly, but not the version that it leaves me at the end.

I've tried values from 0.1 to 4 with the same result.

Has anyone else encountered this, have I missed a setting or is it strange behaviour?

General / "nan" markers and 0 paramaters with image variant calibraiton
« on: December 28, 2021, 11:57:44 AM »

I've not used the image variant paramters much before and seem to have something odd happen.

I have a series of chunks through time with markers for position between them.

2 camera groups for each chunk both starting with a precalibration values from an earlier good model with the same camera (but different working distance), one with a fixed focus, the other variable focus (not enough room to stick to the focus)

when i first ran everything it seemed ok, but at some point i found a lot of "nan" in my markers.  I eventually tracked this down to my variable calibration group parameters all estimated to 0.

I'm not sure when this happened as it all looked like it worked first time.
Is there something that's likely to lead to this situation (having adaptive camera fitting on, or off during alignment for example)


Bug Reports / crash with GPU 1.5.5 imac catalina
« on: December 28, 2019, 12:52:26 PM »
Updated OS to catalina and metashape to 1.5.5

crashes when building dense cloud/mesh from depths maps but only on larger files -> i've got it to work on a ~40 photo file, but 300, and 1400 photo files it kills the imac completely - i.e. next time i see it's at the log in screen so I don't have and agisoft crash report, only apple.

it will plod through merrily enough if i turn the GPU off though.

27" 2019 iMac with 8GB radeon vega 48 and 40GB ram

Bug Reports / reset calibrate color not working.
« on: October 02, 2019, 06:19:57 PM »
Hi, I think the reset color calibration isn't working for me.
I'm using 1.5.3 build 8469 on mac

When I try the reset button, it might change 1 or 2 thumbnails back to the original appearance, but still has the 'corrected' version if I open the individual image, or reopen the file.

I managed to remove it by editing out the <vignette> blocks in the chunk. and frame. files for that model, but the button would be easier!

Bug Reports / masking of textures not working?
« on: October 06, 2017, 09:05:06 PM »
I'm trying to texture something with a lot of masked out areas.  The masks are respected in the dense cloud creation, but seemingly not during texture building and giving me terrible ghosting.

I've tried disabling all photos but one or two to check, and masked areas are definitely appearing in the texture.  Is there something I'm missing? I've never noticed the problem before.

Is it something really obvious I've forgotten to turn on/off?  I've attached a snap showing the area masked, photo and segment of textured object.


General / Removing complex scaffolding from around a circular building
« on: September 02, 2017, 09:26:53 AM »

Wondering if anyone has any experience, tips or tricks removing complex scaffolding from around a circular building?

I'm having some success with various attempts, but interested if others have good ideas.

The most straightforward approach seems to be to model the scaffold, texture, then delete the scaffold.

But that way most of my processing, points and polys go to the scaffolding that I don't want.

I i build the mesh only of the bits I want, then when i texture I have scaffolding projected all across the surface.

I've tried building a low dense cloud and mesh of the scaffold but as that wasn't my focus it misses bits. 

I've tried using the scaffold to produce masks, and then expand and simplify them in photoshop which works fairly well, but with the building being circular I have to do it in segments to avoid masking out parts of pictures with scaffold on the far side of the building.

Another option I've not yet tried is to make a low poly model of the scaffold, then retopo it in a 3D modelling program into something super light - and fill in any gaps that got lost in processing, and then merge that mesh with one of just the bit I want before texturing to catch the unwanted bits of texture.

It all seems like rather a lot of work, and It would be nice, if possible to not build the scaffold in the dense cloud at high res at all.

Any suggestions?

I aim* (as ever) to post up online whatever I manage to do in the end.


Bug Reports / Align chunks by markers
« on: September 01, 2017, 09:19:08 PM »
I'm not sure if this is an error or me being me.

I've been trying to align chunks by coded markers in each scene. Done it a ton of times, but this time, everytime I try they end up a little bit out of alignment.

This has happened before, where I've got one or 2 bogus points.
But This time I don't think I do.  I have some targets ID'd in photos in both chunks but in only one image, but that's inevitable surely?

When I align chunks by marker, I get some very odd results. At first, I had the slight offset mentioned above or a scale discrepancy.

On some chunks, if i set my scale bars and fixed scale they'd align snuggly.

on other not so.

In desperation, I saved out the estimated markers of one chunk and imported them as the coordinates to the other and I get a nice good fit with any scale bars reporting nice low errors.

Is this a bug, or am I missing something?

Thanks again.
1.3.2  and 1.3.3. Mac OS

I received this message immediately after trying to set it to align 2 chunks.

Error: Kernel failed: invalid configuration argument at line 146

using Agisoft Photoscan 1.3.2 build 4300, macbook pro 2013 2Gb Nvidia 16gb ram. gpu enabled.

Any suggestions?

Bug Reports / batch process settings
« on: August 06, 2016, 01:17:04 PM »

I just aborted a batch process that I had running and realised partway through I'd setup wrong.

When I exited and then tried to start again the batch process continued from the step I had aborted from, not the beginning.

I also found that the steps that it had completed succesfully didn't show as completed in the project.

it completes alignment,
makes dense cloud.
begin making mesh then <Abort> =  no chunks with aligned photos or dense cloud
start batch process - tries to continue from making mesh.

General / DNG colour shift
« on: July 29, 2016, 12:43:06 PM »
Sorry if this is already answered, I couldn't spot it.

Overjoyed to see the addition of DNG support.

However, I'm finding some of my DNG files are a very strange hue of purple pink.

Probably missing something very simple, but I've checked the files, and they don't have any adjustments applied – i.e. I didn't have the white balance set wrong and correct later, though it does happen sometimes.  So it shouldn't be that the metadata is ignored.

Makes a fine model, just one that's pink. I texture it with jpg/tiff exports which is fine, just don't think it's meant to be pink to start with.

Also only seems to be for one of camera models I've tried – the Nikon D3100.
Shot in Raw, converted to DNG with Lightroom CC

I've looked at DNG taken in the same place/day/conversion/settings white balance etc and they are fine. These cameras were
Nikon D700  and D7000 and both look entirely fine.  It's only the D3100 files.

What have I misssed?

Thanks again.

General / mesh subtraction/intersect
« on: September 05, 2014, 01:35:08 AM »
Hi, I wonder if anyone has any handy tips for the following.

Similar to some posts I've seen here where people are looking at erosion and want to calculate the volume of the difference between two meshes, I'd like to be able to model the difference between two meshes.

Ideally I would like to take 2 chunks, and combine, automatically removing any areas that are match - leaving a closed objects of the space between the meshes.

The closest to success I've reached so far has been using boolean operator in blender on extruded meshes, but this leaves me with a lot of cleaning to do, and seems to fail unless the the 2 meshes are substantially different from each other.

Does anyone have a workflow or program suggestions that can do this?
Or perhaps a future option of photoscan merge-chunks?


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