Review and post "Blender to BRL-CAD" tutorial on our wiki
completed by: Toshita Barve
This is a follow-on for a previous GCI task:
Your task is to take that tutorial, review it, and post it to our wiki. There are a couple minor issues to correct and at least one omission. Read through the whole tutorial and verify that it works (RUN THE STEPS). Add any clarifications / corrections that you find are needed. Here are a few that we notice:
- Step 10 doesn't say or show what the obj-g command actually is.
- When uploaded to the wiki, the mged command and graphics windows in section 11 need to be smaller, about quarter-size (not cropped). Both together should be the same size as the Blender window. Place them side-by-side.
- The MGED windows are disproportionately big, should be smaller or cropped to the area of interest in sections 12, 13, 14, and 15 (the command windows, too much white)
- Move the output image in section 16 into section 15 after the raytrace control panel so we end off with just the rendering in 16
- Third and fourth sentences are wrong. It is compatible, it's rotated. Say this instead:
Do you remember what your table looked like when you finished building it in Blender? It was upside down and now it's on its side. Rotating the table reorients it correctly:
rot 0 -90 0
[insert another final rendering]
Then you can add this in a box with the diagram at the end:
"BRL-CAD, like most of the CAD industry, uses +Z for up. Blender, like most of the film industry, uses +Y for up. Using +Y for up has origins in the film industry where the image screen is the center of attention, X and Y form a view plane and Z is the depth or distance from the camera. Using +Z for up has origins in manufacturing and architecture where the object and scene are the center of attention, X and Y form a horizontal ground plane, and thus Z becomes the elevation or height dimension."
Add the cleaned up and reviewed article to our wiki at http://brlcad.org/wiki/Tutorial/Blender_to_CAD
Be sure to also add a reference to the tutorial on our main wiki page.