Water simulation, how do I get it to work (AMD)

October 22, 2016, 5:33 am

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Hello all,

I’ve installed the most recent sandbox software (as of today 22 October 2016: VRUI 4.2, Kinect 3.2, SARndbox 2.2) on a Core i7 laptop running Ubuntu 14.04. Kinect and the digital elevation model all run fine, however the water simulation is not running. I suspect this to be an issue with the graphics card driver.

The graphics card is an AMD Radeon M7 (8670M) series with an open source driver. A proprietary driver is apparently not available.

When running the DEM I can call on the water simulation statistics and this will show a framerate rapidly changing around 30 fps. I take this to mean that the simulation is running. However, no water appears and the terminal window gives a persistent error message at what looks to be around 30 times a second as well. It refers to a GL error.

Does anyone have advice?

Thanks,
Mathijs

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Reply To: Sandbox 2.2

October 23, 2016, 6:31 pm

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I was able to get it to work by uninstalling everything and reinstalling all of it, but when I ran it I could not make it rain with my hand but it would work when I used the water tool. As soon as I used my shortcuts for different shaders (which I did update to the new path) all the water went away and I cant get it back. Any ideas on what I am doing wrong or is this a issue with the new release?

Reply To: Failure of installing Kinect

October 24, 2016, 12:12 pm

≫ Next: Upgrades to Vrui-4.2-xxx, Kinect-3.2, SARndbox-2.2

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With Vrui-4.2-xxx, installing the Kinect package requires “sudo make install”, as the package is installed alongside Vrui in /usr/local. I updated the installation instructions post; please double-check there for any other subtle changes.

Upgrades to Vrui-4.2-xxx, Kinect-3.2, SARndbox-2.2

October 24, 2016, 12:23 pm

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We’ve been having a bit of a rough upgrade due to a lot of piled-up changes from the previous versions of these three software packages to the current ones.

If you run into issues, please check the “Complete Installation Instructions” thread carefully, as there are a few subtle changes. The updated instructions should get the AR Sandbox up and running again.

That said, there are also a few, and some unintentional, changes in running the AR Sandbox.

Most importantly, you need to add -uhm (“use height map”) to the command line to apply a topographic color map, and you need to add -rer 20 100 (“rain elevation range”) to the command line to have rain clouds working. The two values after -rer are the minimum and maximum rain cloud elevation; you can adjust those to taste.

Rain cloud detection has changed on the whole. In pre-2.0 versions of SARndbox, the software looked for any non-moving object in the defined rain elevation range. This caused lots of issues with arms or heads causing unintentional rain, and hands often not causing rain due to small movements.

Post-2.0 versions of SARndbox specifically look for an open-hand rain gesture: hand flat above the sand surface, ideally palm down, and all five fingers spread out. Based on our testing, this new method works more reliably than the old one, and does not induce a one-second delay before applying rain. If you make the gesture, it starts raining immediately (i.e., within 1/30s).

Reply To: Kinect-3.2

October 24, 2016, 12:32 pm

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Sorry, I have to take that back for the moment. There are minor issues with Kinect v2 support in Kinect-3.2. I’ve sorted most of those out for Kinect-3.3.

Reply To: Sandbox 2.2

October 24, 2016, 5:45 pm

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That worked great. Thanks for all your help and the great product you have created.

Reply To: Failure of installing Kinect

October 24, 2016, 11:23 pm

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Thank you so much.

Reply To: Minimum requirements for water simulation?

October 25, 2016, 4:18 am

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Thanks for answer and a little hint of binding.

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What are the new features of 2.2?

October 25, 2016, 8:57 am

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Hi,
Does anyone have a list of new features in SARndbox 2.2?

I have made one at my high school, version 1.6, and it is working wonderfully. I do not want to upgrade if it is not necessary.

Thanks

Reply To: Sandbox 2.2

October 25, 2016, 11:19 am

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Hi!

After the updated to 2.2 I’ve been using the command “./bin/SARndbox -uhm -fpv -rer 20 100” but the rain is still not working. Maybe the range is not right – how to set it?

Thanks a lot!

Output depth array

October 25, 2016, 1:36 pm

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Hello,

I would like to add to the Sandbox code such that it will continuously output a file containing an array of the depth at each pixel location. What is the best approach to editing the code to do this? Since there are so many pieces of the code interacting differently, it is unclear to me how to make any such additions or how to incorporate new header/cpp files into the existing code.

Any help would be greatly appreciated!

Thanks.

Is this a problem? -#4 on the installation

October 25, 2016, 2:49 pm

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Hello all,

Thanks for the help on the last problem I had. Now I am getting this, when entering in the last step on #4 in the installation instructions:

ellie@ARS-Bulldog ~/src $ tar xfz Kinect-2.8-002.tar.gz
ellie@ARS-Bulldog ~/src $ cd Kinect-2.8-002
ellie@ARS-Bulldog ~/src/Kinect-2.8-002 $ make
makefile:71: /home/ellie/Vrui-3.1/share/make/SystemDefinitions: No such file or directory
makefile:72: /home/ellie/Vrui-3.1/share/make/Packages.System: No such file or directory
makefile:73: /home/ellie/Vrui-3.1/share/make/Configuration.Vrui: No such file or directory
makefile:74: /home/ellie/Vrui-3.1/share/make/Packages.Vrui: No such file or directory
makefile:238: /home/ellie/Vrui-3.1/share/make/BasicMakefile: No such file or directory
make: *** No rule to make target ‘/home/ellie/Vrui-3.1/share/make/BasicMakefile’. Stop.
ellie@ARS-Bulldog ~/src/Kinect-2.8-002 $ make install
makefile:71: /home/ellie/Vrui-3.1/share/make/SystemDefinitions: No such file or directory
makefile:72: /home/ellie/Vrui-3.1/share/make/Packages.System: No such file or directory
makefile:73: /home/ellie/Vrui-3.1/share/make/Configuration.Vrui: No such file or directory
makefile:74: /home/ellie/Vrui-3.1/share/make/Packages.Vrui: No such file or directory
makefile:238: /home/ellie/Vrui-3.1/share/make/BasicMakefile: No such file or directory
make: *** No rule to make target ‘/home/ellie/Vrui-3.1/share/make/BasicMakefile’. Stop.
ellie@ARS-Bulldog ~/src/Kinect-2.8-002 $ make installudevrule
makefile:71: /home/ellie/Vrui-3.1/share/make/SystemDefinitions: No such file or directory
makefile:72: /home/ellie/Vrui-3.1/share/make/Packages.System: No such file or directory
makefile:73: /home/ellie/Vrui-3.1/share/make/Configuration.Vrui: No such file or directory
makefile:74: /home/ellie/Vrui-3.1/share/make/Packages.Vrui: No such file or directory
makefile:238: /home/ellie/Vrui-3.1/share/make/BasicMakefile: No such file or directory
make: *** No rule to make target ‘/home/ellie/Vrui-3.1/share/make/BasicMakefile’. Stop.

It seems not good to have “no such file or directory” output. Is this a normal output or did something go wrong?

I haven’t hooked up the kinect yet because I still need a power adapter for it, so I don’t know if it works yet or not; hoping to fix any issues so that when the adapter arrives I can hit the ground running.

Edited to add: when I tried to run the example program in the terminal to see if everything was working, I got this, so it seems like things are not working properly:

ellie@ARS-Bulldog ~/src/SARndbox-1.6 $ $ cd ExamplePrograms
$: command not found
ellie@ARS-Bulldog ~/src/SARndbox-1.6 $ $ make
$: command not found

Thanks!
Ellie

Alignment Problem

October 26, 2016, 10:32 am

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I notice the Sandbox contour line and colors align exactly in the center of the sandbox, but towards the edges they get off-center by about 2-3 inches.

Reply To: Sandbox 2.2

October 26, 2016, 1:20 pm

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Through experimentation on the 2.2 version, I have found that the -rer values are reversed and should be MAX MIN (not MIN MAX) so I use -rer 80 30 and it seems to work fine.

Reply To: The AR Sandbox World Map

October 26, 2016, 2:17 pm

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Bayside STEAM Academy
490 Emory Street
Imperial Beach, CA 91932
619-628-2500

Lat: 32-35’20” N
Lng: 117-06’46” W

Bayside STEAM Academy is a public school grades TK – 6th. AR Sandbox is being used by the primary grades (1-3) special day class and the mainstream 4th graders to study land forms, elevations and water flow. We seek to gain a better understanding of the river (Otay River mouth)and bay (South San Diego Bay NWR) community that shares our northern property line border and to influence the cleanup and preservation of the natural resources adjacent to our school.

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Reply To: Kinect-3.2

October 27, 2016, 12:42 am

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Ok, thank you.

So, i will go with the kinect V1.

Reply To: Updating an Existing AR Sandbox

October 27, 2016, 5:25 pm

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Add -uhm (“use height map”) to the command line to enable color mapping. This should also enable rain, but if it doesn’t, explicitly specify a rain elevation range via -rer , for example, -rer 20 100.

Reply To: Keystrokes to drain ARS water

October 27, 2016, 8:10 pm

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Thank you!

Reply To: Unable to inhabit screen saver.

October 27, 2016, 11:58 pm

≫ Next: Does the kinect need a sector adaptor ?

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Hi,Oliver
It seemed I had already installed the DBus library.
Not only the message, but also the projector didn’t display anything for the application.

Does the kinect need a sector adaptor ?

October 28, 2016, 12:57 am

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Hello,

I have just bought a kinect modele 1414. But there was no sector adaptor with it.
Do i need one ?

Thank you !