Final Project. Houdini

Transcription

1 Final Project Houdini

2 Houdini (Apprentice Edition) Download from install run etc need to create account

3 Loading OBJ

4 Loading OBJ hover mouse and hit tab

5 Loading OBJ

6 Loading OBJ hover mouse and type file

7 Loading OBJ

8 Loading OBJ click File

9 Loading OBJ this thing appears, click it

10 Loading OBJ now this thing appears

11 Loading OBJ double click it

12 Loading OBJ

13 Loading OBJ

14 Loading OBJ this will let you tell it where to load obj files from

15 Loading OBJ click it

16 Loading OBJ choose dir to find obj, e.g. teapot.obj

17 Loading OBJ click it

18 Loading OBJ

19 Making a flip book you need to load a directory of obj s put all of the obj files in the directory need a naming convention like file_0.obj, file_1.obj, file_2.obj etc. you can then animate these using flipbook

20 Loading OBJs

21 Loading OBJs this will let you tell it where to load obj files from

22 Loading OBJs click it

23 Loading OBJs choose dir to find obj, e.g. teapot.obj

24 Loading OBJs the objs, click it

25 Loading OBJs

26 Making a flip book you need to load a directory of obj s put all of the obj files in the directory need a naming convention like file_0.obj, file_1.obj, file_2.obj etc. you can then animate these using flipbook

27 Making a flip book click this little flip book icon

28 Making a flip book these are the start and end frames for the flip book

29 Making a flip book you can watch this like a movie by clicking play once it s generated

30 Rendering the last flip book is with OpenGL level quality you can render it more realistically with Houdini this can be done in the following sequence of events: improve sharp normals, add material property to objs, add ground plane, add lighting, set camera angle, render

31 Rendering improve sharp normals add material property to objs add ground plane add lighting set camera angle render

32 Normals double click on the obj node

33 Normals now hit tab the type normal to add a normal processing node

34 Normals now a normal node will appear

35 Normals click the bottom of the file node and connect it to the normal node

36 Normals click on the normal node, then click the tab at the right (in blue) to turn it on

37 Normals now adjust the angle threshold slider, it treats edges below it as sharp

38 Normals Notice the edges are sharp now

39 Rendering improve sharp normals add material property to objs add ground plane add lighting set camera angle render

40 Material properties you can render your obj as plastic, glass, metallic etc if you want to make it look like jello you can use glass this is a little more expensive to render though, you can use plastic for a quicker turn around

41 Material properties Back out of the file node by clicking obj

42 Material properties Now click on materials pallete

43 Material properties Let s choose plastic: click it and drag to window at right

44 Material properties Let s choose plastic: click it and drag to window at right

45 Material properties Now click it to examine properties

46 Material properties For example adjust color

47 Material properties next you need to tell the file/obj node that it should render with the plastic material as you set it up you have to click on the file node to do this

48 Material properties click on /shop to go back to node view

49 Material properties click on shop tab to reveal obj option, this will bring you back to node view

50 Material properties now click on the material tab to reveal plastic as an option

51 Material properties now click on this icon to reveal the material choices

52 Material properties choose plastic and accept

53 Rendering improve sharp normals add material property to objs add ground plane add lighting set camera angle render

54 Ground Plane (Grid) adding a ground plane makes the rendering look a little more realistic this is a grid node in Houdini you can create it by hitting tab the typing grid, similar to the creation of the file node used for objs

55 Ground Plane (Grid)

56 Ground Plane (Grid) enlarged lower right

57 Ground Plane (Grid) enlarged lower right

58 Ground Plane (Grid) double click the grid node to modify it s size, e.g. set to 100X100 (default is 10X10) then exit back to obj view to see all the nodes then modify the height of the grid (e.g. shift y by -. 7)

59 Ground Plane (Grid) double click grid node then modify size

60 Ground Plane (Grid) click on obj to exit grid node to see the other nodes

61 Ground Plane (Grid) now shift plane down in the y direction to make some room for the object

62 Rendering improve sharp normals add material property to objs add ground plane add lighting set camera angle render

63 Lighting a simple version of this is to add an environment light this is like an ambient light that has no obvious source but lights everything up nearly equally you can add it from the obj view by clicking tab then typing environment

64 Lighting click tab, then type environment

65 Rendering improve sharp normals add material property to objs add ground plane add lighting set camera angle render

66 Camera Angle click and drag in scene window to move the object around until you get an angle you d like to render/ create the flip book from click in upper right of the scene window on the cam tab click new camera to save this viewing angle

67 Camera Angle position for viewing then save camera view

68 Rendering improve sharp normals add material property to objs add ground plane add lighting set camera angle render

69 Rendering you can preview the render by clicking on the render window tab

70 Camera Angle the render view tape is here

71 Rendering click here to choose your saved camera view click here to render

72 Rendering it will look like this as it converges

73 Rendering by default it renders vertices as sphere (this doesn t look good)

74 Rendering to modify this, we have to go back to obj window and modify the rendering geometry settings in the file node click the node, look for render option tab select the geometry tab select no point rendering

75 select no point rendering Rendering

76 Rendering now it renders the surface triangles instead of the points

77 Rendering to create a rendered flip book, click on the obj bar above the obj window

78 click on out Rendering

79 Rendering tell it to render a range of frames

80 Rendering tell it to render to frame 120 (or whatever is your final frame)

81 Rendering you have to delete channels to do this

82 Rendering then click Render to Play and wait