Messages

31

General / Memory requirements for depth map model generation

« on: April 08, 2019, 08:02:01 PM »

Hi
Is there any rule of thumb to calculate memory requirements for the new "mesh generation based on depth maps" method?  Maybe based on number of photos, photo size, quality of mesh?
Thanks

32

General / Re: Strange behaviour when using manual markers for alignment

« on: April 07, 2019, 11:41:31 PM »

Hi Alexey,

I'm transferring the file via wetransfer due to the size

Best regards

33

General / Re: Strange behaviour when using manual markers for alignment

« on: March 28, 2019, 01:08:20 AM »

Hi Alexey

All cameras are quite close to one another (in the correct position) when I look at the camera overlay.  I tried to define the markers as well as possible in the photographs, zooming in on each one to check.  No coordinates have been input because given this is an underwater wreck and no coordinate measurement is possible (assuming I understand your question).

Thanks

34

General / Re: Strange behaviour when using manual markers for alignment

« on: March 27, 2019, 09:30:04 AM »

A friend has advised me that according to him, this problem was introduced from version 1.4, when the feature to incrementally add photos to a model was added in the software.  Not sure if anyone has any different views on this?
Thanks

35

General / Strange behaviour when using manual markers for alignment

« on: March 24, 2019, 04:15:54 PM »

Hi

I'm working on quite a large model of an underwater shipwreck.  Because of the depth and limited time we have to shoot, I've had to combine photos from three separate dives into one model, and alignment has proved quite challenging.  The best result so far has come from combining all the photos (some 1.8k 24 or 36 MPixel photos) in one single alignment process (as opposed to working in chunks), but a number of photos did not align.  So I've tried using markers to force alignment between aligned and non-aligned photos, with mixed success. 

The strangest thing however, which I would like to ask about, happened following an alignment process which gave me a decent result but left a few photos out of alignment, when I selected the unaligned photos and did a "right-click...align selected cameras", I just got a "ball of cameras". 

I'm attaching screen grabs showing before and after.

Any ideas?

Thanks!

36

General / Re: Masking transparent parts of images

« on: March 22, 2019, 08:53:20 PM »

OK that works

Is there any way not to render those "transparent" areas at all? 

Thanks

John

37

General / Re: Masking transparent parts of images

« on: March 22, 2019, 08:25:09 AM »

OK I understand. 

So is it correct to say that when a "transparent texture" is encountered in a photo, which matches a mesh surface, then this is textured as white?  (Please excuse my possibly clumsy use of terminology)

Rgds

John

38

General / Re: Masking transparent parts of images

« on: March 21, 2019, 10:50:44 PM »

Hi Alexey. 

I did as you suggested, however the masked out pieces are ending up as white in the textured model. The masking worked 100%, as I mentioned before, and my hope was that the polygons generated from the masked out areas would simply disappear. 

I generated the PNGs with the transparencies from a program called IMBATCH.  I did the alignment with JPGs and Photoscan had no problem to accept PNGs instead.

Thanks for any advice

John

39

General / Re: Masking transparent parts of images

« on: March 21, 2019, 06:11:01 PM »

Thanks Alexey!  That worked perfect and i am now seeing the masks.

Would I then need to rebuild the mesh or can I go straight to the texturing?

Regards

40

General / Masking transparent parts of images

« on: March 21, 2019, 09:27:22 AM »

Hi,
I am trying to eliminate a large amount of unwanted background noise in a model by changing specific colours to transparent in a batch process, saving the images as PNGs, and redirecting Photoscan to use those images to texture the model.  The workflow seems to work well, only the "transparent" areas are being rendered as white, whereas I wish to eliminate the areas totally.  I am using Photoscan 1.4.5.  Does anyone have any suggestions or indeed maybe a different approach? Maybe there is a process where one can automatically mask out the transparent areas, but I dont know how to do this.
Thanks!

41

General / Re: Info missing

« on: March 07, 2019, 10:28:47 PM »

You are right!  I feel like an idiot!!   
Thanks

42

General / Re: Info missing

« on: March 07, 2019, 06:28:39 PM »

Gentle reminder please Alex

43

General / Re: Info missing

« on: March 06, 2019, 12:58:09 AM »

Hi Alexey, please find attached
Regards,
John

44

General / Info missing

« on: March 05, 2019, 09:58:43 AM »

Hi
Using Photoscan 1.4.5, and my info data (showing number of points in a model) has disappeared.  I've tried all sorts of things, even reinstalling, but for nothing.  The option is selected under the Model...Show Info setting.  This seemed to happen after I also installed Metashape on the same PC.
Any help would be appreciated
Thanks
John

45

Bug Reports / Re: Speed of 1.3.2 onwards vs 1.3.0

« on: December 30, 2017, 08:07:49 PM »

Ok Alexey, many thanks for the details!  I will spend some time to try to understand 
Best wishes for the New Year!