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Create a technical screenshotBRL-CAD
Status: ClosedTime to complete:
48 hrs
Mentors: Sean
Everyone loves to see screenshots of software in action. We use screenshots in our marketing and outreach. See some of the examples below that we already have.
Create an awesome screenshot of either mged or archer. It should be graphically interesting, show wireframe and/or raytraced geometry and give some sense of capability. The emphasis should be on making a screenshot intended for a highly technical audience. As such, you should have a reasonably high-resolution screen.
I suggest enabling a quad-view, using rt+rtedge in one of them and using rtedge in others. Join us on IRC to get help on how to do that or read our manual pages.
References:
- http://brlcad.org/gallery/d/19-4/MGED.jpg
- http://brlcad.org/tmp/archer.png
- http://brlcad.org/gallery/s/screenshots/
- http://www.google-melange.com/gci/task/view/google/gci2012/8019211
Note that we have several screenshot tasks. Note you may have to go through some or our basic MGED tutorials (see docs section on our website) just to be able to display geometry. Finally, give others a chance if you already completed one of the other screenshot tasks. ;)
Uploaded Work
| File name/URL | File size | Date submitted | |
|---|---|---|---|
| mged_screenshots.zip | 7.3 MB | December 29 2012 01:07 UTC | |
| mged_screenshots2.zip | 566.0 KB | January 01 2013 05:57 UTC | |
| mged_screenshots3.zip | 3.6 MB | January 03 2013 13:02 UTC |
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This task has been assigned to Christopher Su. You have 48 hours to complete this task, good luck!
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This task has been assigned to Osaze. You have 48 hours to complete this task, good luck!
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Osaze, you're on the right track and I like the numerous attempts. The very first castle image is the closest to being a "technical" screenshot of the collection. The video isn't very useful because you're clearly not familiar with how to use MGED, but it's a good concept. You might want to look at the mged quick reference sheet and the geometry browser if you attempt another go (particularly the "tops" and "l" commands instead of guessing geometry to draw).
So the problem with the castle model is that it's not technical. It's visually interesting, but very simple demo geometry. You need something much more complex. You also should demonstrate an overlay rendering as the description states. We can help you do that big, but your first step is to find an interesting geometry model that can be showcased.
Your best bet is to likely import geometry from grabcad.com (stl, step, or 3dm work best, but some will fail, especially if they're not solid) or some other similar site instead of using on of our example geometry files. If you must, though, look at the biggest files.
Alright, thank you! I will work on it!
Sorry, for taking so long to upload. I just figured out how to convert .stl, .3dm, and .step files to the .g format, and am now searching the web for a solid file.
That's okay, we care more about quality than speed of work.
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Thank you for the extra time!
Hello! I have found a file that is solid enough to convert to the .g format. Here is a picture of it (https://docs.google.com/open?id=0Bynn_SEJ0093WEFrSGRyWGJmTmc). The original file can be found here (http://grabcad.com/library/dragon-charm).
Is this file complex enough to continue working with?
I was able to convert this into a geometry database file also (https://docs.google.com/open?id=0Bynn_SEJ0093MnlPVm9IOFQycDg), altough I am not sure if it is interesting enough. Here is the source (http://grabcad.com/library/small-container-home).
Hello! I have posted a new zip file with screenshots of the .step files I converted to geometry databases. As you can see in the picture, I was having quite a few problems (especially keeping the text from flooding the command window). I also could not figure out how to properly overlay render the files.
Should I be taking certain steps before I execute the step-g binary and convert the file, or is there something I can do to the database before opening it with mged? Thanks!
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Osaze, that's much better and on the right track. The dragon screenshot is the closest, but needs a little more work. As the task description notes, you opened a detailed model (okay), show a wireframe (okay), but don't show a rendered image and only hint at capability with the geometry browser and quad view.
The building would have been a good model, except it has no colors set so it's pretty uninteresting otherwise (a boring building). At least one of the four panels in the quad view should be raytraced with the wireframe hidden (and shown on the others). You can keep the raytrace control panel open since that helps show capability, but use your layout and realestate wisely. If you can create a higher resolution, that'd be even better.
Also, the command console needs to be informative. Right now, it just shows a bunch of error messages, which isn't very helpful. Try something like this:
make box rpp
analyze box
kill box
find / -name 'a*'
bb all
Or some variation thereof. Try to avoid any error messages since those are problems with the paritcular example and commands you're using and aren't informative to others.
Hello Sean! I managed to render the geometry! I found out that there was a directory called /Default in the database that was causing the problem and just deleted it.
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The latest set looks a whole lot better and will make a nice addition. Do you have a link to the dragon model that you imported? We need to be able to cite and credit them for the model.
Thanks for the congrats! Here is the link to the dragon model that I imported (http://grabcad.com/library/dragon-charm)
As GCI comes to a close, we wanted to take the time to say THANK YOU for all your efforts. This comment interface closes after GCI is over, so you're encouraged to join our mailing list where we'll be announcing contributions from GCI participants like yourelf over the upcoming months:
https://lists.sourceforge.net/lists/listinfo/brlcad-news
If you've provided your full name, we'll be sure to credit you in our authorship documentation and you'll see your name in a future announcement. If you contact us at devs@brlcad.org or via IRC, we'll even let you know when your work is integrated and follow up with updates. You're welcome and encouraged to contact us any time, especially if you have a question about how to continue participating in Open Source after GCI is over, but even if just to keep in touch. Note that ongoing participation in Open Source is one of the most impressive skills to have on your resumé. Take care, be well, and thank you again!