BRL-CAD provides several ways to model 3D geometry including a graphical tool named mged, another named archer, and various ways to create geometry using scripts. We use 3D models for development and to showcase our features. You can learn the basics of 3D modeling in just an hour or two.
This task involves modeling a toy tank. This is basically for a game, so make it look cool. Your job is to model it natively using any of BRL-CAD's tools (i.e., don't model it in something else and import) using 3D primitives and Boolean operations (i.e., without using 2D sketch entities or polygons). There should be at least one main gun, but there can also be secondary gun(s) too.
The tank should be accurately modeled in such a way that it can be printed using a 3D printer. This means that the model should have regions defined for each part and no overlaps (use rtcheck and/or gqa commands to verify). Create one top-level combination to group everything together.
The tank does not have to look realistic or detailed. It should look good when rendered really small (like 32 pixels square), which implies a simple but creative design.
References:- Do an image search for "top-down tank game" or "2D tank game" or similar.
- Introduction to MGED at http://brlcad.org/wiki/Documentation
- Submit your model as a .g file (BRL-CAD's geometry file format) and a rendered PNG image. You can run "rt -s1024 -o your_rendering.png your_geometry.g your_top_level_object" to create a PNG rendering of your model.
| File name/URL | File size | Date submitted | |
|---|---|---|---|
| Task (can't fill gun).g | 3.8 KB | December 07 2014 21:28 UTC | |
| tank | 5.1 KB | December 15 2014 15:19 UTC | |
| tank.jpg | 31.4 KB | December 15 2014 15:19 UTC | |
| tank | 8.6 KB | December 16 2014 11:34 UTC | |
| top tank.jpg | 37.7 KB | December 16 2014 11:34 UTC | |
| tank.jpg | 29.5 KB | December 16 2014 11:34 UTC | |
| tank | 9.9 KB | December 16 2014 14:20 UTC | |
| tank.jpg | 29.5 KB | December 16 2014 14:21 UTC | |
| top tank.jpg | 37.7 KB | December 16 2014 14:21 UTC |
I would like to work on this task.
This task has been assigned to Jude. You have 100 hours to complete this task, good luck!
I found that I couldn't fill the gun, and I haven't been able to figure out how. Could you tell me how please?
If you needed to know, I used archer
The claim on this task has been removed, someone else can claim it now.
I would like to work on this task.
This is rather a stupid question to ask but can we use the tank wizard
This task has been assigned to Aditya Gulati. You have 100 hours to complete this task, good luck!
The work on this task is ready to be reviewed.
Aditya, how many regions did you end up creating? There should be a single region object for every distinct piece of geometry (each "part"). If we 3d-printed this, it would be all the individual pieces. Since you did such a good job modeling this quickly, please set different colors on each individual region and upload a re-rendered preview. It'd help to see a top-down render in addition to an angled rendering too.
Looking good!
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Looks good. A region turret with epa.1 would make it even better.
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Sir,
I didn't quite understand what you mean, Do I need to make a new turret or Make a new region containing epa.1 or Something else.
Regards,
Aditya.
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The turret is an independent part of the tank, e.g. it could be turned. That's why you should make a region of it. E.g. by creating a region "turret" and moving "epa.1" to it.
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Congratulations, this task has been completed successfully.