Topics

16

General / VBO support

« on: May 06, 2012, 05:46:58 AM »

So what is this VBO support, there is no info when moused over, nor is there anything in the manuals about it.

Google says Vertex Buffer Object in relations to OpenGL.

Does it force the graphics card to keep more in memory, or what is it all about?

17

General / ply export

« on: April 30, 2012, 04:03:59 AM »

I am wondering is it possible to export only the points with color in for example ply or just raw txt format from Photoscan, I can only export to ply including faces. As well the file is in binary, so I have to open it in meshlab for example and save as ASCII, edit in text editor and then I have a clean vertex only file. However problem is what if you have million or even billions of points, Meshlab has a hard time opening it.

Therefore I would love an output that only outputs like so. for example a ply file. x, y, z, normals and color.

property float x
property float y
property float z
property float nx
property float ny
property float nz
property uchar red
property uchar green
property uchar blue
property uchar alpha


alpha is of course extra and does not have to be there.

I cant imagine this being hard to implement, or maybe I am missing something and it is already there.

I am thinking this because it can often be easier to visualize billions of points then 100 million faces.

P.s. I am actually wondering about the reconstruction process as well, when the GPU step has finished does that not indeed return a simple point cloud data? could then the last steps be skipped if one would only be after the point cloud data, or... that data could be processed a little later, to brake down the reconstruction steps.

18

Feature Requests / bounding box center by clicking

« on: April 30, 2012, 02:56:15 AM »

I have been wondering as I think moving the bounding box is a little clunky... could there be a way to make this a little easier... for example you could click on the model or point and make that the center of the bounding box. As well a numeric value for the bounding box could help a lot with such a click function where you assign how far on each axis it will go from the click you just did.

The box could as well be used to change rotation and orientation of the bounding box, say you want to flip the bounding box 180° or make it more accurate for height field reconstruction.

I hope I make myself clear on this. And I do think this would be a very helpful function.

Little extra, the numeric window could also have a function where you tell it to move x far from its current position, for example if you want to reconstruct a planar model in passes, you can simply move the box numerically instead of manually.

19

General / Cache directory in Photoscan

« on: April 05, 2012, 01:08:44 PM »

When working on larger projects where more RAM is needed towards the end of the Meshing would it be possible to have a caching directory in Photoscan to cache to instead of using the Windows Swap file, most software is set up this way.

Reason I am asking is I have assigned swap file in Windows but Photoscan keeps on bluescreening when it starts to swap.

I know it will be slow, but processing can then be done on larger sets, there are fast SSD solutions out there that can be used.

So could you please add internal Cache/Swap to Photoscan.

Does swapping from the GPU cause any problems maybe, is that why I get bluescreen?

P.s. I have 64GB of RAM but I am still running easily out of RAM. And there is not really any indication how much more RAM I need.

20

General / Ground Control and align images

« on: April 04, 2012, 09:42:27 PM »

Does it matter if I add GPS iformation per image before or after the align images is run?

Will it improve the alignment?

21

General / Disable Core for GPU

« on: March 12, 2012, 01:35:55 AM »

I have been wondering if you have a CPU with hyper threading do you disable 1 or 2 cores in Photoscan, due to Hyper threading being virtual core.

So for example if you have the i7 3930K it has 6+6 "cores" thats how Photoscan sees it.

I got a GTX 580 and I was wondering if I should disable 1 or 2 cores in Photoscan. Is there a thread enough to feed the GPU or does it need the whole real core for itself.

22

General / Graphics cards and memory

« on: February 25, 2012, 12:35:29 PM »

Is there any gain for Photoscan to have a card with 3.0GB RAM instead of 1.5GB

For example you can get the GTX580 in 1.5 and 3.0 GB flavors

Often the 1.5 cards are clocked higher then the 3.0 cards so that would impact this as well.

What is the gain if any?

23

General / Generating mesh - cancel

« on: August 25, 2011, 05:33:56 PM »

Sometimes if I cancel the Generating mesh stage, it can take more then 1 hour for it to cancel.

I can kill the app but that will result in not clearing the cache it has been using.

24

General / Nvidia Tesla and Photoscan

« on: August 16, 2011, 03:03:11 PM »

Can Photoscan use Nvidia Tesla cards, or is the missing shaders a problem for it.

Say for example the NVIDIA Tesla “Fermi” M2050 GPUs

25

Bug Reports / Ground Control and Coordinate system - crazy error.

« on: August 12, 2011, 12:17:38 PM »

Seems very strange to me, the only coordinate system I seem to get to work is local Coordinates and WGS 84, I started with ISN93 and converted them straight to WGS 84 so its the same location.

Local Coordinates, looks good.


WGS 84 looks good.


WGS 84 Looks correct in Google Earth.


Now however.

All the other coordinates system I tried seemed to fail like

ISN93 big fail.


ISN93 in Google Earth.


I tried various other ones, they all seemed to fail. Could there be something wrong with ISN93 for example.

Any ideas.

26

Feature Requests / Double click to move Trackball

« on: July 11, 2011, 05:09:52 PM »

Suggestion of when you double click on the model it will move the Trackball's center to the triangle/point you double clicked on in the model. Would make much easier navigation.

27

Feature Requests / Texture - size, format, layered

« on: July 05, 2011, 04:46:55 PM »

It would be great to be able to work with other then jpg texture files, for example 16bit Tif files or PSB files.

So one can do larger then 30k textures and not limited to 8bit. As long as input images are of course 16bit tif files.

Layered texture file would be very handy as well, where one could go in and manually edit seams that Photoscan might have some trouble with in Photoshop for example.

28

Feature Requests / Command line access

« on: May 15, 2011, 04:45:00 PM »

I haven't been able to find anything about this.

Is there a commend line access to Photoscan.

If not, is this planned? as this could be such a great feature.

29

General / Texture Blending

« on: May 15, 2011, 04:41:35 PM »

Some examples I have seen from Photoscan look really interesting, There was one thing I noticed regarding texture, for example you do a 8k x 8k texture of an area it does pretty good at blending the images together to make a texture. However to me the texture looks very soft, it is like it does not use the full resolution of the images to create the texture. I am wondering if that is true?

As well looking at the UV's they look really bad, I know model can be taken into another program to make better UV's and re-project the texture onto it. But making better UV's in the first place seems to me to make the textures a lot better.

30

General / SIFTGPU and Bundle Adjustment on the GPU

« on: May 15, 2011, 04:35:01 PM »

I am wondering about SIFT/SURF and Bundle adjustment used by Photoscan.

As far as I can tell these 2 steps are both on the CPU and both multi-threaded.

Are you guys looking into having an option to move theses things onto the GPU to make them many times faster?

SIFTGPU
http://www.cs.unc.edu/~ccwu/siftgpu/

MultiCoreBundleAdjustment
http://grail.cs.washington.edu/projects/mcba/

I am curious as for example SIFT seems to pretty slow in Photoscan, but I guess that mainly because it is extracting a lot of points using High as value.