1. Introduction to Matinee Sai-Keung Wong Chiao Tung University, Taiwan, R.O.C. Reference: Mastering Unreal Technology (MUT)

2. Contents Matinee Examples

3. Matinee Basics Change the properties of actors – e.g. materials and colors Make animation Activate events, – e.g. facial animation Activate Matinee sequences from Kismet sequences.

4. Matinee Basics Kismet -> Matinee, open Matinee editor Create cutscenes （游戲玩家無法控制的游戲 片段）。 Create Machinima ( 游戲引擎影片 )

5. Matinee Basics

6. Matinee Terminology Keys （帧） Keys （帧） Curves （曲线） Curves （曲线） Tangents （切线） Tangents （切线） Tracks （轨迹） Tracks （轨迹） Groups （组） Groups （组） – Director Group （ Director 组） Director Group （ Director 组）

7. Animation Animation is the rapid display of a sequence of images of 2-D or 3-D artwork or model positions in order to create an illusion of movement. It is an optical illusion of motion due to the phenomenon of persistence of vision, and can be created and demonstrated in a number of ways. The most common method of presenting animation is as a motion picture or video program, although several other forms of presenting animation also exist.optical illusionmotionpersistence of vision Source: http://en.wikipedia.org/wiki/Animationhttp://en.wikipedia.org/wiki/Animation [accessed on 10 April 2010]

8. Keys Keys （帧） or “ 关键帧（ Keyframe ） ” Store information at a specific time instant

9. Curves Curves （曲线） A shape which is defined between two keys.

10. Tangents Tangents （切线）

11. Tracks Tracks （轨迹） A set of keys for executing certain controls. E.g. control the movement of an InterpActor based on the information of a movement track.

12. Groups Groups （组） A container of tracks.

13. Director Group Director Group （ Director 组） A special group For managing special effects of cameras – For example, 剪辑，慢动作效果，淡入淡出，以及颜色比例

14. Example: Mover Purpose: – Create an InterpActor static mesh – Move it back and forth between two positions In level editor – Create an InterpActor static mesh

15. Example: Mover

16. Select the InterpActor In Kismet, – Create a Matinee – Double click the block “Matinee” – Make sure the InterpActor is selected

18. Example: Mover In Matinee Editor, Under “All”, at the empty area, right click, and click “Add New Empty Group”.

19. Example: Mover Right click at the newly created group “Mover”, Click “Add New Movement Track”

20. Example: Mover Now, the interface looks like as follows:

21. Example: Mover Add a new Key as shown below. Note: press ENTER to add a new key Press CTRL and drag the key to change key time position slider

22. Example: Mover Now, minimize the Matinee Editor window – Note: Don’t close the window. Go back to level editor. Drag and move the InterpActor to the desired position. The yellow line is the path of the InterpActor.

23. Example: Mover Save and test. The InterpActor does not move. To solve the problem: – In Kismet – Add an event “Level Startup”

24. Example: Mover How do you let it go back and forth? Don’t read the next slide if you haven’t solved it.

25. Example: Mover Solution: read below!!!

26. Example: Mover Save and test.

27. Example: Mover In Matinee Add more keys. Change the position of the InterpActor for each key

28. Example: Mover Save and test. Move the player to step on the mover.

29. Example: Mover In Matinee Click “Toggle Curve Editor” Click the “black” box. It becomes yellow. The motion paths of the InterpActor are shown. Red: X Green: Y Blue: Z Note: Scale the size if the curves are not fitted.

30. Example: Mover

31. Click “Fit View to All”

32. Example: Mover Select a key (marked as square), a tangent vector is shown. Move it and see the effect.

33. Example: Mover Overshoot ( 過量 ) A part of the curve bounded inside the red rectangle overshoots, (its value > desired value 500 ).

34. Example: Mover

35. Sound Property Dialogue ->InterpActor Close Sound Closed Sound Closing Ambient Sound ….

36. Tracks

37. Movement Track Control positions of objects

38. Event Track Allow Matinee sequences to generate events

39. Float Material Param Float Material Param （浮动材质参数） Apply to MaterialInstanceConstant （材质实 例常量） for setting ScalarParameter （标量 参数）

40. Director Group Specific Tracks Director 组特定轨迹 Create cutscenes

41. Matinee Remarks Movement track: – only for objects with Physics （物理） property – PHYS_Interpolating is checked Create a key at time 0.00 instead of using default values If a key is selected, a message “ADJUST KEY #” is shown.

42. Matinee Remarks InterpActor 的 CollisionType （碰撞类型） – Default value : COLLIDE_NoCollision 。 – Make sure to set it as COLLIDE_BlockAll 或 COLLIDE_BlockAllButWeapons in case you need it bStopOnEncroach （被碰撞时停止） is correctly set Assume that Matinee is open. – Press Shift and move the objects but the camera does not move.

43. Example: Elevator New. Subtractive. Purpose: – Go at the doors – Open doors – Close doors – Move up / down – Open doors – Close doors – etc.

44. Example: Elevator

46. Now, create a hole between the two floors. How?

47. Example: Elevator Subtract

48. Example: Elevator Assume that you have prepared what you need. Select an InterpActor Door

49. Example: Elevator In Kismet, Create a Matinee sequence Double click the Matinee block Now, create an empty group Add movement track for one door Repeat for another door

50. Example: Elevator

52. Now, add sound for InterpActor Doors Save and test. The doors do not open. ?! To solve the problem: – Add a triggerVolume (right click at “add Volume”)

53. Example: Elevator A green brush is created from the red brush. – It’s the triggerVolume Resize the green brush and place it properly.

55. Example: Elevator Select the triggerVolume In Kismet, create new event using triggerVolume

56. Example: Elevator

57. Select the elevator: – Create a matinee sequence to control its motion

58. Example: Elevator Now, open the doors at the second floor. Create a new Matinee Duplicate the data of the first Matinee sequence for the second Matinee sequence

59. Example: Elevator Matinee motion data can be reused. Make sure “Relative to Initial” is selected.

60. Example: Elevator Create a Matinee sequence for the elevator at the second floor. Note: copy and paste are useful

61. What does the Kismet sequence do? What is wrong with the Kismet sequence? Save and test.

62. Example: Elevator Start at the first floor Go to the second floor Go out of the elevator Try to go inside after 5 seconds The platform “disappears”. Solve the problem.

63. Example: Elevator Add triggerVolumes for controlling the movement of the platform.

64. Example: Elevator Use some variables to record the state of the platform. Logic: If the player is on the platform and doors are closed, move the platform. – How do you know that the player is on the platform? – How do you know that the doors are closed? – How do you know that both conditions are satisfied?

65. Example: Elevator Need a variable (bool or int) to record the state of something.

66. Example: Elevator

67. Precise description Tasks: – Stand at the doors and open doors – Stand out of doors and close doors – At the first floor. If the player is inside, move up from the first floor to the second floor – Stand at the door and open doors – Stand out of doors and close doors – At the second floor. If the player is inside, move down from the second floor to the first floor

68. Suggestions Always make sure “Max Trigger Count” is correctly set.