Model a A using BRL-CADBRL-CAD
Status: ClosedTime to complete: 48 hrs Mentors: SeanTags: 3d model, graphics, geometry

Create an uppercase letter "A" geometry model using BRL-CAD. You can use the mged or archer geometry editor tools or write a script. The model should be roughly 1000mm tall, about 500mm wide, and about 100mm deep. Create it using CSG or other methods, but it cannot be an imported model, polygonal mesh (BOT, NMG), or extruded bitmap (EBM).

It should be free of modeling errors (no overlaps, run "rtcheck" to verify). It should have interesting shader properties set (suggest stack+plastic+texture), default shader will not be accepted. Provide the .g geometry file and a 1024x1024 rendering at a "ae 35 25" view to show what it looks like.

References:

Uploaded Work
File name/URLFile sizeDate submitted
try1.g34.9 KBNovember 28 2012 19:33 UTC
letterA.jpg66.4 KBNovember 28 2012 21:27 UTC
try1.g86.1 KBNovember 29 2012 12:13 UTC
lA.jpg87.1 KBNovember 29 2012 12:13 UTC
try1.g86.2 KBNovember 29 2012 12:42 UTC
lA.jpg67.0 KBNovember 29 2012 12:42 UTC
Comments
Andrei Tudoricaon November 27 2012 17:40 UTCTask Claimed

I would like to work on this task.

Harmanpreet Singh on November 27 2012 17:45 UTCTask Assigned

This task has been assigned to Andrei Tudorica. You have 48 hours to complete this task, good luck!

Andrei Tudoricaon November 28 2012 19:23 UTCQ

how do I save the rendering (1240x1240)? 

Andrei Tudoricaon November 28 2012 19:34 UTCReady for review

The work on this task is ready to be reviewed.

Sean on November 28 2012 21:16 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.

Sean on November 28 2012 21:17 UTChowever you like

You can save the image however you like.


You can capture a screenshot or render directly to a file (put a filename for the output).


The easiest way is to run this on the command line from within MGED:


rt -s1024 a.png


 

Andrei Tudoricaon November 28 2012 21:27 UTCReady for review

The work on this task is ready to be reviewed.

Harmanpreet Singh on November 29 2012 04:50 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.

Harmanpreet Singh on November 29 2012 05:01 UTCAlmost Complete

Andrei,


You work is really appreciable, but default shader will not work. Go to 'combination editor' panel from 'Edit' menu and you will see a shader button. Just make it more shiny, for example apply a texture or checker pattern or camo etc.


Make it look interesting and you'll be done. :) 

Andrei Tudoricaon November 29 2012 09:00 UTCstacker

Where can I find the stacker option in the 7.22 version of BRL-CAD?

Harmanpreet Singh on November 29 2012 11:29 UTCCombination editor options

Go to edit menu, select the combniation editor, a dialog box will open. Click on button  at the right side of Name, select 'Select From All' and select your object. Then click on show shader and click on the button at the right side of Shader and select stack. 


To use stacker, you need to click on add shader button and select one of the options which further asks for various sub options.


I would recommend to simply select testmap or cloud or mirror or any other and raytrace the model with nice background to complete the task. That's it. :)

Harmanpreet Singh on November 29 2012 11:39 UTCDeadline extended

The deadline of the task has been extended with 0 days and 12 hours.

Andrei Tudoricaon November 29 2012 12:05 UTCbackgroud

what does "nice bacground" mean? I made a blue glass model with 0.7 transparency and 0.1 mirror reflectance... i may put some arb8's near it or something.... what do you think?

Andrei Tudoricaon November 29 2012 12:13 UTCReady for review

The work on this task is ready to be reviewed.

Harmanpreet Singh on November 29 2012 12:34 UTCConfusion

By background, I mean to say only background color, nothing else. Objects other than that of 'A' will not be accepted. However, blue glass model of A is good.


So, remove the arb8s and finish the task. :)

Andrei Tudoricaon November 29 2012 12:49 UTCdone

done:)

Harmanpreet Singh on November 29 2012 14:59 UTCTask Closed

Congratulations, this task has been completed successfully.

Sean on January 14 2013 15:21 UTCthank you

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!


This 'A' is going to be part of our GCI announcement headline in particular. ;)