Aug 7, 2015

Script for Deleting object in Blender

To delete 'Cube' object:
from bpy import data, ops
cube = data.objects['Cube']
cube.select = True
ops.object.delete()

Jul 29, 2015

Blender 3

1. What are three basic transformations of an object?
Changing location (grab in Blender), size (scale in Blender), and rotation (rotate in Blender).

2. Where can we find the numerical values for these quantities?
Selecting the object and bringing up the Properties region with the N hotkey. The three values are at the top, and may be changed.

3. What are the hotkeys for grab, scale and rotate?
They are G, S and R.

4. When are Global and Local angles the same?
When the object has not been rotated.

5. How can you use the 3D Manipulator?
By clicking on the colored lines on selected object.

6. How can you switch manipulator modes?
By clicking on the blue arc icon on header to activate Rotation manipulator mode, and by clicking on the button with the icon of a line connecting to the corner of a square to activate the Scale mode.

7. What hotkey sequence rotates selected object 30 degrees in global z?
It is R, Z, 30 and Enter.

8. What is the hotkey for changing level?
The M hotkey, and a numeric for the level.

Blender 2

1. Where can you change editor type?
By left-clicking the button on the far left of the editor's header.

2. What does the 3D View editor show?
The three-dimensional view of your model or scene.

3. What does the Outliner editor show?
A hierarchical view of all the objects in your scene.

4. What does the Info header show?
The main menu and information about scene.

5. What are the animation Editors?
Timeline, Graph Editor, Dope Sheet and NLA Editor.

6. What does the Timeline editor offer?
A convenient way to quickly jump from one moment in your animation to another as well as play back the animation.

7. What does the Graph Editor show?
A graphical representation of animatable attributes in your scene as they change over time.

8. What is the Dope Sheet used for?
Creating and adjusting animation using actions or keying sets.

9. What do keying sets allow for?
Ability to group together a bunch of different animatable attributes.

10. What does the NLA Editor allow for?
Mix pre-animated actions on a single character.

11. What is the UV/Image Editor used mostly for?
Loading textures and adjusting UV coordinates.

12. What does the Video Sequence Editor (VSE) allow for?
Editing video, such as stringing a sequence of scenes together.

13. What is the Logic Editor?
A game engine integrated with Blender.

14. How is the Properties editor organized?
In subsections.

15. What does the Render subsection allow for?
Setting attributes for the final output.

16. What does the Scene subsection allow for?
The active camera, units of measurement, and the strength of gravity if you're using simulated physics.

17. What does the Word subsection control?
The environment that your scene is built in.

18. What does the Object subsection offer?
Make changes that affect an object as it relates to the scene.

19. Name an area where Object Constraints subsection is important?
Animation.

20. Why would you want to use Modifiers subsection?
To simplify design, such as working on only one side and letting the Mirror do the other side.

21. How can you restore Blender's default settings?
By selecting Load Factory Settings from the File menu.

22. What are default screen presets?
3D View Full, Animation, Compositing, Default, Game Logic, Motion Tracking, Scripting, UV Editing, and Video Editing.

23. Which hotkeys can you use to cycle through the screens?
By pressing Ctrl and either left or right arrow.

24. What is orbiting?
Rotating the 3D world around a fixed point in space.

25. How do you orbit?
Middle-click anywhere in the 3D View and drag your mouse cursor around.

26. What is panning?
Same angle view but translated in space.

27. How is panning achieved?
By holding Shift while middle-clicking and dragging your mouse cursor in the 3D View.

28. What is zooming?
Moving the view closer or farther.

29. How can zooming be achieved?
Using the mouse's scroll wheel or using + and - on Numpad.

30. What is the orthographic view of a 3D scene?
A view where grid scale is same regardless of distance from the observer and parallel lines stay the same distance apart.

31. What is the perspective view of a 3D scene?
A view where grid scale decreases with distance from the observer and parallel lines seem to touch.

32. How can we toggle between perspective and orthographic view?
Using 5 on the Numpad. It is also possible to use the View menu in 3D View's header.

33. What is the Top view?
A view down the z-axis (-z). The x-axis increases going right and y-axis increases going up.

34. What hotkey brings the top view?
Numpad 7.

35. What is the Front view?
Looking in the y direction (+y). x increases rightwards and z increases upwards.

36. What hotkey brings the front view?
Numpad 1.

37. What is the Right view?
Looking down the x direction (-x). y increases rightwards and z increases upwards.

38. What hotkey brings the right view?
Numpad 1. 

39. What are hotkeys for the opposite view from Top, Front, and Right (that is Bottom, Back and Left)?
Pressing Ctrl while pressing Numpad 1, 3 or 7.

40. Which viewport shading is the default?
Solid is the default viewport shading type that Blender starts with.

41. How can you toggle to Wireframe shading?
Pressing Z toggles between Solid and Wireframe.

42. What is the Quad View?
A 3D View is split into four regions: top, front, and right orthographic views, along with a user perspective view.

43. How can you toggle into the Quad view?
Using the hotkey Ctrl+Alt+Q, or the View menu option with that name.

44. What hotkey can you use to toggle into the Properties region?
Pressing N.

45. What hotkey can you use to toggle into the Tool Shelf region?
Pressing T.

46. What hotkey brings the integrated search?
Spacebar.

Blender 1

1. What is Blender?
Blender is a free and open source 3D modelling and animation suite.

2. How did Blender originate?
As an internal production tool for an award-winning Dutch animation company called NeoGeo.

3. When did NaN close?
In 2002.

4. How much did the 'Free Blender' campaign need to raise before releasing the source code of Blender from NaN to Blender foundation?
100 thousand euros.

5. What is a Blender window composed of?
Editors.

6. What is the most important editor?
The 3D View.

7. Where are headers found?
At either the top or bottom of editor.

8. What is a header composed of?
Menus and buttons.

9. What is the design philosophy of Blender?
To be non-blocking and non-modal.

10. What does non-blocking mean?
Different editors can not overlap.

11. What does non-modal mean?
An editor doesn't restrict you from using another editor.

12. Name a case when the non-blocking and non-modal philosophy is violated?
If you select Open from File menu, the File Browser editor is opened, over other editors.

13. Which editors are in Blender's Default scene?
Info, 3D View, Timeline,  Outline and Properties.

14. What are corner widgets?
These are the diagonal lines at lower-left and at the upper-right of an editor.

15. Why are corner widgets important?
You can drag the corner widgets to either split an area, or join two areas.

16. How can you maximize area for an editor?
By pressing Shift and Spacebar, or Toggle Full Screen from View menu in the header.