The BRL-CAD Logo depicts two interlocked nodes. Modeling the new Logo in BRL-CAD in CSG (without NURBS, without polygons) requires some careful arrangement, but can provide an attractive three dimensional rendering that we can use for a number of purposes..
The output of this task will be a .g file of BRL-CAD logo and a rendered image. The two segments you model MUST be two or more regions hinged together (you can have center pins or not, you decide). This is your opportunity as an artist and 3D magician to come up with an interesting yet faithful interpretation.
References:
- http://brlcad.org/images/angelov_256.png
- http://brlcad.org/d/node/92
- Introduction to MGED at http://brlcad.org/wiki/Documentation
Note that there are other logo modeling tasks and yours must start from scratch and be completely original. If we get a hint that yours was based off of or used measurements from some other model, you will be barred.
This command run within MGED should help give you an interesting render:
rt -A0.75 -s1024 -c \{set ambSamples=256\}| File name/URL | File size | Date submitted | |
|---|---|---|---|
| logo.g | 19.5 KB | January 11 2015 15:11 UTC | |
| logo.png | 218.8 KB | January 11 2015 15:12 UTC | |
| logo2.png | 91.6 KB | January 11 2015 15:12 UTC | |
| Screenshot - 10.01.2015 - 18:30:40.png | 214.7 KB | January 11 2015 15:12 UTC | |
| logo.g | 19.5 KB | January 12 2015 09:29 UTC | |
| logo_finall.png | 203.0 KB | January 12 2015 09:30 UTC | |
| logo.g | 19.5 KB | January 12 2015 10:37 UTC | |
| logo_new.g | 20.6 KB | January 12 2015 10:39 UTC | |
| logo_finall.png | 203.0 KB | January 12 2015 10:41 UTC | |
| logo_new_finall.g | 21.0 KB | January 12 2015 14:00 UTC | |
| logo_new_finall.g | 22.0 KB | January 12 2015 15:17 UTC |
I would like to work on this task.
This task has been assigned to Raptor. You have 100 hours to complete this task, good luck!
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Raptor, I noticed you have regions within regions -- this is a modeling error. An object should only be marked a region if it's a combination that represents a single material shape/object. For example, a nut and bolt are two separate regions. If I create a "nut_and_bolt.c" combination that includes both the nut and the bolt, it should not be marked as a region.
The logo model itself looks alright except for the interconnection between the rings. There are discontinuities where the subtracted cylinder creates sharp edges.
The work on this task is ready to be reviewed.
and I'm missing a group containing everything which belongs to your logo design.
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Sorry mistakenly sent old
Look at Sean's comment: "An object should only be marked a region if it's a combination that represents a single material shape/object." And you shouldn't use any other Boolean operation than "u" for groups (that's the one the mged "g" command creates).
I.e. good candidates for regions would be br_big and br_small as they represent independent shapes of one material/color.
And you should have one group containing everything belonging to your logo model. This could include a light ond background too.
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but you should calmly review your model. There are regions within regions again, br_big and br_small have no color, and you should remove the region_id attribute from logo.
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Congratulations, this task has been completed successfully.