Model the BRL-CAD symmetrically BRL-CAD
Status: ClosedTime to complete: 72 hrs Mentors: SeanTags: modeling, 3D, graphics, logo, artwork

This is a follow-on task to http://www.google-melange.com/gci/task/view/google/gci2013/5570107921137664 that anyone may claim.

This task involves adjusting the 3D logo model so that it is perfectly symmetric.  You will need to use either MGED or Archer to edit the .g file, learn/know the basics of modeling with BRL-CAD, and edit the model to make this change.

References:

  • Introduction to MGED at http://brlcad.org/wiki/Documentation 

To do this task, you will likely use either the 'oed' command or the Matrix edit mode and/or learn how to appropriately rotate objects.  This may only require a simple rotation or it may require something more extensive.

This task will be validated by running "rt -s1024", bringing that image into Photoshop or Gimp, duplicating the layer, flipping the duplicate horizontally, and then adjusting the layer compositing to "Exclusion" so that alignment can be seen.  You can try that process yourself to know when you're done.  Here's how that looks if they're not symmetric: http://brlcad.org/tmp/asymmetric.png

 

Uploaded Work
File name/URLFile sizeDate submitted
Updated.g43.2 KBDecember 01 2013 13:14 UTC
Before.png90.5 KBDecember 01 2013 13:15 UTC
After.jpg281.1 KBDecember 01 2013 13:16 UTC
final.g43.2 KBDecember 02 2013 10:35 UTC
t.png910.0 KBDecember 02 2013 10:36 UTC
done.png1.0 MBDecember 02 2013 15:46 UTC
Comments
Sharan Narayanon December 1 2013 06:58 UTCTask Claimed

I would like to work on this task.

Gauravjeet Singh on December 1 2013 12:31 UTCTask Assigned

This task has been assigned to Sharan Narayan. You have 72 hours to complete this task, good luck!

Sharan Narayanon December 1 2013 13:16 UTCReady for review

The work on this task is ready to be reviewed.

Sean on December 1 2013 19:02 UTCalmost perfect

That's looking a lot better, but do you think you can get it exact.  It looks like there's a slight shape discrepancy on the outer top portion of the bottom two circles (before they overlap).  If you render "rt -s2048 -o test.png" and flip that rendering, you can really see it.


 

Sean on December 1 2013 19:02 UTCTask Needs More Work

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.

Sharan Narayanon December 2 2013 10:34 UTCReady for review

The work on this task is ready to be reviewed.

Sharan Narayanon December 2 2013 10:39 UTCDone

It was a little tough to do very minor adjsutments in millimeters


Thanks to you I learnt how to export raytraced image, I haf been using printscreen for it

Sharan Narayanon December 2 2013 15:56 UTCWrong File

I accidently uploaded the wrong file-t.png


The Right file is the done.png, you can still see the line if you zoom in very close like 3200% about 1px line, can you excuse that please because the shape of the logo is very confusing hard to align just by looking at the exclusion photo.I had to do 30 hit and trial  images(checked my recycle bin)  ;)

Sean on December 3 2013 04:37 UTCTask Closed

Congratulations, this task has been completed successfully.

Sharan Narayanon December 3 2013 18:10 UTCIdeas for New Tasks 💡

I  remembered in 2012, there were tasks to model hourglass,caffine molecule,gemstone etc


 


There were also some diagrams of primitives left to make.. :-)