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 | |
|---|---|---|---|
| Cannot Save.PNG | 6.3 KB | December 30 2014 00:05 UTC | |
| Task BRL-CAD.g | 6.6 KB | December 30 2014 18:16 UTC | |
| Picture.PNG | 8.6 KB | December 30 2014 20:34 UTC | |
| Task BRL-CAD [New].g | 7.9 KB | January 02 2015 03:04 UTC | |
| Task BRL-CAD [Newer].g | 59.5 KB | January 03 2015 01:59 UTC | |
| Image (BRL-CAD).PNG | 15.9 KB | January 03 2015 18:19 UTC | |
| Task BRL-CAD [Even Newer].g | 66.0 KB | January 03 2015 19:58 UTC | |
| Ray-Trace BRL-CAD.PNG | 82.1 KB | January 03 2015 19:59 UTC |
I would like to work on this task.
The claim on this task has been removed, someone else can claim it now.
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'm not used to using Archer, and I made a model. But it won't let me save the model. I'll upload an image of what the save button looks like, so you can take a look and possibly tell me how to fix it. Thank you.
If you'd like I could show what my design looks like if that would help. Thank you again
I have uploaded the file, when I reopen the file you have to set all of the logo back to 'Shaded'. I made it in Archer, if you could tell me what I have done wrong it would really help. Thank you, and sorry for being not great at using it.
The work on this task is ready to be reviewed.
You should create regions from the different logo elements and put all these regions in one group.
One of the mentors has sent this task back for more work. Talk to the mentor(s) assigned to this task to satisfy the requirements needed to complete this task, submit your work again and mark the task as complete once you re-submit your work.
Sorry for asking, but how would you create regions and groups in archer? I researched it, and I found a command in MGED but when I open the .g file in MGED it doesn't show. Thank you
I worked out how to make groups. I hope this is good enough!
The work on this task is ready to be reviewed.
In Archer you have a command window similar to the one in mged. Look at the tutorial for how to create regions and setting colors.
One of the mentors has sent this task back for more work. Talk to the mentor(s) assigned to this task to satisfy the requirements needed to complete this task, submit your work again and mark the task as complete once you re-submit your work.
Thank you for telling me how I could make it better, I think I've done everything okay now
The work on this task is ready to be reviewed.
Melange has detected that the deadline has passed and no more work can be submitted. The submitted work should be reviewed.
The deadline of the task has been extended with 2 days and 0 hours.
At the first sight the model looks OK, but this task requires a rendered image too. Could you please upload a ray-traced image of your geometry?
One of the mentors has sent this task back for more work. Talk to the mentor(s) assigned to this task to satisfy the requirements needed to complete this task, submit your work again and mark the task as complete once you re-submit your work.
The work on this task is ready to be reviewed.
If you are doing a ray-trace (for example in archer: Raytrace-rt-512x512) you get a black window only. But the boxes in the main window are looking OK. So, what's wrong?
You are using the wrong operation for adding the boxes to regions: "+" will give you the overlap (which is zero for all boxes), "u" would be the right union-operation.
One easy way to fix this is converting the geometry to ASCII format (g2ascii), replacing the + by u in the ASCII file, and converting the ASCII back to the binary format (ascii2g).
One of the mentors has sent this task back for more work. Talk to the mentor(s) assigned to this task to satisfy the requirements needed to complete this task, submit your work again and mark the task as complete once you re-submit your work.
I clicked the 'Raytrace current view' button and I didn't get any file from it, when I clicked rt at the top it worked so I used the snipping tool on that. Could you please tell me how to get the png file straight from archer?
The work on this task is ready to be reviewed.
Congratulations, this task has been completed successfully.
Thank you very much for all the help you gave me