1. CSE 380 – Computer Game Programming Introduction ITS 102 – 3D Modeling for Games Blender's User Interface

2. Goals for Today Let's learn a little Blender3D: - resize, split, and merge any Blender window - change the type of any Blender window - access user preferences - access panels containing buttons and other controls - change the viewpoint of a viewport NOTE: The Noob to Pro book advises this is the most important part of the book. Why?

3. Blender GUI Windows GUI is divided into windows –they never overlap –each window has a header Note each window's editor type –try changing one and see what happens Their arrangement is called the workspace

4. Blender 2.69a Default GUI Can you find: -info window? -3d view window? -properties window? -outliner window? -timeline window? Try flipping a header -RMB on header Try hiding a header -drag header edge

5. Blender has 15 window types Each has its own icon Each is for doing different tasks. Ex: File → Load Factory Settings is your friend

6. The Active Window The one that will respond to a key press Only one is active at a time Which one is active? –the one with the mouse over it –“focus follows mouse” –subtle window highlighting –on active window, try:

7. The Tool Shelf Some windows contain other windows –Ex: 3D View Window contains the Tool Shelf

8. Splitting & Joining Windows Look at top-right and bottom-left of windows Do you see this? Try dragging it left and right

9. Workspace Layouts Different tasks may require different layouts –i,e. arrangements of windows Predefined layouts available from Info header

10. The Properties Window Functions for materials, animation, rendering, etc. Each button switches context: Render Scene World Object Object Constraints Object Modifiers Object Data Material Texture Particles Physics

11. Render Context –control rendering of the final images: which layers to render, what resolution to use, output format, performance, post processing Scene –scene settings –camera selection World –background sky color –mist –star settings –environment lighting, etc.

12. Object –transformations –layer assignments –grouping, etc. Object Constraints –limit motion of animation object –i.e. tie motion of other objects

13. Object Modifiers –for applying modifiers to geometry Object Data –mesh vertex groupings –text font –lamp settings –camera settings, etc. Material –object color –shiny/dull surface –transparency

14. Texture –surface properties –different types:

15. Particles –apply smoke, flames or sparks to objects –generate hair or fur Physics –control reaction to forces –rigid bodies –soft bodies (cloth, pillow, etc.) –flowing liquid.

16. 3D View Window A rendering approximation. Some features: –3D Transform Widget –3D Cursor –Mini Axes –Object info

17. 3D View Window Additional features: –Current viewport –Lamp (i.e. light source) –Camera –Grid floor of square Blender Units

18. 3D View Window Modes Object Mode –RMB to select objects in scene Edit Mode –to edit shapes of objects –RMB to select vertices, edges, & faces –TAB to enter/exit mode Others for later: –Sculpt –Vertex –Texture –Weight

19. Solid vs. Wireframe Press 'Z' key in 3D View Window Solid (opaque surface) Wireframe (edges only)

20. Orthographic vs. Perspective Press NUM5 to toggle User Persp User Ortho

21. Changing the Viewport Zooming the viewport –MMB Scroll –NUM+, NUM- Rotating the viewport –MMB press with Mouse Movement –NUM2, NUM4, NUM6, NUM8 Perfect viewport views

22. Perfect Views of a Monkey Head

23. Positioning the 3D Cursor Basic technique – LMB on viewport –not so precise To snap object to center of cursor –in object mode, select object (RMB on object) –then SHIFT-S To relocate cursor to origin (0,0,0) –then SHIFT-C

24. Dollying Moving the viewport left, right, up down –think strafing in a game CTRL-NUM2, CTRL-NUM4, CTRL-NUM6, CTRL-NUM8 Free Dollying: –SHIFT-MMB

25. Centering To center the view on an arbitrary point: –position 3D cursor arbitrary point –press ALT-HOME To center the view on an object in the scene: –in object mode –press A to deselect all objects –RMB click on object to center on –press NUM. To center the view

26. Jumping to the Camera Viewpoint Toggle NUM0

27. Zooming into a Selected Area Press SHIFT-B Then drag LMB to select size of area –note, this does not change center

28. Visibility Layers Each scene has 20 visibility layers –every object must be assigned to one Have many uses: –organize your scene –simplify view while working –light objects separately

29. Visibility Layer Hotkeys Pressing SHIFT while selecting a layer –allows for multiple layers to be selected

30. Count your polys

31. Object Mode Editing Object vs. Edit mode In Object Mode: –Select cube –Add new Cube –Deselect All –Add new Cube –Do you see the difference? Try rotation, translation, and scaling

32. Edit Mode Editing Select Cube and Switch to Edit Mode: –Select Vertex and translate –Select Edge and translate –Select Face and translate –Select Face and eXtrude Try rotation, translation, and scaling

33. Next Time Editing our Scene –Object Mode AND –Edit Mode