Messages

1

General / Re: Set resolution of DEM

« on: February 01, 2024, 08:33:04 PM »

The ability to set DEM resolution used to exist even with point cloud in 2022, or I could be misremembering.

I discovered that if you set it to generate from the depth maps, you can choose your resolution. And then your orthomosaic will be 2x the DEM resolution.

2

General / Re: Hardware: better choice for Metashape

« on: January 11, 2024, 11:47:23 AM »

You really need Nvidia graphics. Look into gaming laptops, particularly Alienware. I have an Asus ROG Swift  and don't recommend them because of the terrible Armoury Crate software.  Lenovo is pretty low quality, being a Chines brand, and they all have really garbage screens. It helps having a screen with good color and high resolution. I've had several Alienwares and they've all been great

3

General / Re: How can markers be off target on orthomosaic if errors values are good ?!

« on: December 14, 2023, 09:32:56 AM »

Is it possible the GPS coordinates are less accurate than you think? Also did you try loading the orthomosaic and GCPs into GIS software?

4

General / Re: Strange test results on different GPU

« on: October 19, 2023, 10:44:17 AM »

I recently got an RTX 4060 which is a pretty low end card, but does very well in floating point benchmarks because it has the new CUDA cores that can do both. It seems to do very well with Metashape though I haven't done a direct comparison with my older 2080 Ti card. Anybody know if Metashape is mostly floating point or integer math? I would think FP...

5

Bug Reports / Re: Issues with dragging and rotating the model with the mouse

« on: September 10, 2023, 09:18:47 PM »

I'm having trouble finding where the Terrain mode is. In fact, every time I reinstall Metashape I have trouble finding it. Can it please be moved to the Navigation tab? That's where you would expect a navigation setting to be.

6

General / Re: AMD Ryzen 9 7950X3D vs Intel Core i9-13900K ?

« on: July 12, 2023, 05:38:46 AM »

All of my CPUs were always undervolted and I never had problems with calculation errors even during  several hours of computing.

It is several times higher probabilty of errors in the system RAM modules affected with cosmic and electromagnetic radiation after several hours if modules don't have ECC correction. In that case money saved on CPU cooling can be used to buy RAM modules with ECC correction, like server computers have. Ryzen CPUs support this feature.

In case of exaggerated concerns and be 1000% sure, you can always leave a slightly higher voltage value than it is necessary for the proper operation of the processor. But it is still huge difference and big save in energy and heat compared to what we get from the factory with default settings. Manufacturers are keeping huge reserve because there is no time to test all chips to exact voltage needs.

Chips used in smartphones have much much less reserves in voltages compared to desktop CPUs, and are working several days without errors.

You need to test! Period. You can't just say "Well I haven't had problems". You may not know if you've had problems, and you don't know if someone else will experience calculation errors. It's simply not true that cosmic ray RAM errors are more likely. The whole point of needing a certain voltage is that under that voltage you get calculation errors. You're basically telling someone a falsehood, that if the computer isn't freezing, there are no errors.

https://www.researchgate.net/figure/Number-of-faults-in-regard-to-overclocking-and-undervolting-for-matrix-with-size-of-10K_fig4_343556325

7

General / Re: AMD Ryzen 9 7950X3D vs Intel Core i9-13900K ?

« on: July 11, 2023, 10:49:40 AM »

Undervolting is safe procedure, because it is about to find the lowest voltage which is not causing freezing and not the first one which causes issues. It is also adviced keep 0.02V reserve after finding the right voltage value.

Using ECO mode only helps to decrease power consumption and temperatures, but it also masivelly decrease performance because it is not based on undervolting principles.
https://youtu.be/RlMq1VEWNIM?t=84   that cinenebch is good representation how multicore performance dropped after eco mode enable.

What is even better is lock multicore frequencies to certain fixed value, e.g. 4.4/4.6/4.8GHz and do not use automatic boost single core frequencies...this makes undervolting much easier and more effective.

Finding the lowest voltage for CPU is much easier in ryzen master app then adjusting values in BIOS and restarting computer after each change. So it is 100% worth to do, otherwise we are significantly overpaying the performance. With undervolting we can also save money because much expensive water cooling solutions is not needed.

Not freezing doesn't mean there aren't calculation errors. You would need to do real stability testing that looks for calculation errors, and you would have to do it outside the OS you're actually using

8

General / Re: AMD Ryzen 9 7950X3D vs Intel Core i9-13900K ?

« on: July 11, 2023, 07:19:09 AM »

Hi,

AMD 7xxx is better choice, because 13900k is mix of 8 performance cores and 16 efficient cores(without multithreading) and to match AMD performance it needs to be clocked almost to max boost frequencies, which produces a lot of heat.
Even better choice is AMD 7950X(non 3D), because that extra 64MB cache will highly probably not improve performance in metashape at all.
That cache is good only for certain specific games, which are heavily vectorizing data in CPU caches.

To get maximum potential performance you will need to undervolt the CPU in bios or in AMD software, because on default you can easily stuck on ~base multicore frequencies, high temperatures and high power consumption ...and that means lower performance in the end. This applies to all modern CPUs in the last ~10 years.

This seems accurate from what I know about the latest processors! But I recommend NOT undervolting unless you know what you're doing and know how to stress test. Undervolting is like overclocking, you can and probably will get calculation errors which can corrupt your data.

What you can do is use Eco Mode which I do with my 7900X. You can do it with the AMD software, or in the BIOS you can set power limits. I used the settings for the lower level 7900 non X processor to limit my wattage to 88W.

9

Feature Requests / Request ability to change default settings

« on: July 11, 2023, 07:12:12 AM »

Every time I create as project, I have to go to the Camera Calibration menu and set Rolling Shutter to "Regular". It would be very helpful to allow this and many other settings to be changed permanently so that we don't have to set them every time. This setting in particular seems strange to force virtually every user to change it every time, because almost everyone needs rolling shutter compensation.

10

General / Re: Why make masks why not paint out on image in white or black instead ?

« on: May 08, 2023, 10:30:39 AM »

I agree, they should let you define a color as masking. Another idea is to let you draw a mask in the program and apply it to all photos, or a set of photos. That way you could still use JPEGs

11

General / Re: How to reload photos?

« on: May 08, 2023, 10:27:49 AM »

Thanks, will try putting the new pics in a different path and changing to it

12

General / Re: RAW file format - does it yet support it or still no?

« on: May 07, 2023, 09:24:22 PM »

I've tried DNG files but Metashape doesn't read any of the processing information so you get very dull images. There doesn't seem to be an advantage because you can't use the greater dynamic range to adjust brightness etc. It would be great to cut Lightroom out of the workflow, and also to have a full project with raw files which can be tweaked in the future!

13

General / How to reload photos?

« on: May 07, 2023, 09:22:11 PM »

I use raw drone photos and edit them in Lightroom. Sometimes I re-edit further and I used to be able to just replace the photos in the project folder and the Agisoft would read them. For example, I just edited a set to increase brightness and bring up shadows. But with the current version, the program doesn't use the new photos for building the orthomosaic. It seems to be using a cached version somewhere. Is there a way to force Agisoft Metashape Pro to re-read the edited photos and use those to build the orthomosaic?

14

General / Re: Performance Recommendation for GPU Upgrade or a full make-over neccesary?

« on: April 08, 2023, 09:06:12 PM »

The feature to look for is # of CUDA cores. Amount of GPU memory also matters but it depends on the # of photos you process

15

General / Re: Is it possible to see Earth's curvature in a Agisoft Metashape Project?

« on: April 08, 2023, 09:03:38 PM »

No, because the GPS coordinates from the drone, or from control points, are in meters or feet above a datum that is projected out from the center of the earth. You would have to view your 3D model, orthomosaic, DEM, etc in software that presents the earth as a globe