Digital Visual Effects, Spring 2011 MatchMove

MatchMove

Digital Visual Effects, Spring 2011

2011/04/27

WorkFlow

• Input

– Video – CGI Animation

Setting

• Blender

– Version: 2.57a (stable)

– Operating System: Windows, Mac OS, Linux, FreeBSD – Web Site: http://www.blender.org/

• Voodoo

– Version: 1.1.0 [More stable than before]

– Operating System: Windows, Linux

– Web Site: http://www.digilab.uni-hannover.de/

• Other Options:

– Free: Blender + ICARUS

– Pay: boujou + 3D Max, boujou + Maya, ...

Recipe: Get Image Sequence

• Open Blender

• Add Video File

– Change Window Type to Video Sequence Editor – Select 「Add → Movie」

– Drag the strip to Layer 1

• Render Images

– Choose Render

– Choose output directory – Frame

• Set frame size

• Choose output file type (Targa)

– Time interval → Select start and end of the sequence

• Click Animation button

Get Image Sequence : Blender Interface

Get Image Sequence : Add Video File

Click here to change window type

Add → Movie Change to Video

Sequence Editor

Get Image Sequence : Add Video File

Select video file Add video file

File Directory

Get Image Sequence : Add Video File

This is the sound track. Since we only need images for feature tracking, you can choose to remove it

here, and add it back at the video editing stage!

Get Image Sequence : Add video file

Drag the strip to the “1^st Frame” in Layer 1

Get Image Sequence : Render Images

Choose Render

Select start &

end frame

Choose output file type “Targa”

Output directory

Choose frame size

Click Here!

Recipe: Calibration

• Open Voodoo

• Open Image Sequence

– Select 「File → Open → Sequence」

– Select the first frame

– Select Move Type 「 Free Move 」

• Track →

• Export Python Script

– Select 「File → Save → Blender Python Script」

– Save .py file

• Choose File type “Blender 2.5x and higher (*.py)”

Calibration : Choose Sequence

File → Open

→ Sequnce

Choose free move

Note!!!

1. “free move” is for general moving conditions

Calibration : Track

Track

Calibration : Track

Process Progress

Calibration : Export Python Script

Save → Blender Python script

Calibration : Export Python Script

Choose File type

“Blender 2.5x and higher (*.py)”

Recipe: Import 3D Motions

• Open Blender

• Delete Default Objects

– Choose the object and click “Delete”

• Open Python Script

– Change Window Type to Text Editor – Select 「Text → Open Text Block」

– Select io_import_voodoo_camera.py – Click 「Run Script 」

– Select 「File → Import → Voodoo camera」

– Select the .py file exported from Voodoo

Recipe: Import 3D Motions

• Load Background Images:

– Change Window Type to 3D View

– Select 「View → Cameras → Set Active Object as Active Camera」

– Load background images

– Set the video parameters of background images – Change the view

• 「View → View Persp/Ortho」

• 「View → Camera」

– Check 1st frame and adjust the opacity of background images

• Load models & editing their motions in the video!

Import 3D Motions : Delete Default Objects

Click “Delete” to erase

Import 3D Motions : Open Python Script

Text → Open Text Block

Choose Text Editor

Change Window Type to Text Editor

Import 3D Motions : Open Python Script

Select io_import_voodoo_camera.py Run Python Script

Import 3D Motions : Open Python Script

File → Import → Voodoo camera

Import 3D Motions : Adjust Rendering

To avoid rendering the

feature point cloud in your

result

Import 3D Motions : Adjust Rendering

Cancel the renderability of

the feature point cloud

Import 3D Motions : Load Background Images

Change Window Type to 3D View View → Cameras → Set Active

Object as Active Camera

Import 3D Motions : Load Background Images

Click the “+” or View → Properties

Import 3D Motions : Load Background Images

Tick off “Background Images” &

click 「Add Image」on the menu Click 「Not Set」, and then Click 「Open」

Import 3D Motions : Load Background Images

Choose the 1^st frame image

Import 3D Motions : Load Background Images

Select 「 Sequence」

Set Frames: # images to use Start Frame : 1st

Tick off “Auto Refresh”

Import 3D Motions : Load Background Images

View → View Persp/Ortho View → Camera

Import 3D Motions : Load Background Images

Check 1^st frame for background images

You can adjust the opacity of background images here

Import 3D Motions : Load Models

File → Import

→ “Model Type”

Import 3D Motions : Load Models

To use the model as a “single object” instead of many

“small components” (for finer operations), you can

close the group options

Import 3D Motions : Set Keyframes

Object → Animation → … Keyframe…Use to set the motion of your model

Import 3D Motions : Set Keyframes

You can use

Object → Motion Paths → Calculate Paths to see the motion path of models

Motion Path

Time point of Keyframes

Recipe: Compositing

• Add Image Sequence

– Change Window Type to Video Scene Editor – Select 「Add → Images」and select all images – Drag the strip to the “1st Frame” in Layer 1

• Add Scene

– Select 「 Add → Scene」

– Drag the scene strip to the “1st Frame” in Layer 2

• Set Scene

– Change scene property to “Alpha Over”

– Set frame and video parameters

Compositing: Add Image Sequence

Change Window Type to Video Sequence Editor

Add → Image

Compositing: Add Image Sequence

Select all images

Drag the strip to the “1^st Frame” in Layer 1

Compositing: Add Image Sequence

Compositing: Add Scene

Add → Scene → Scene

Compositing: Add Scene

Drag the scene strip to the “1^st Frame” in Layer 2

Compositing: Set Scene

View → Properties Select “Alpha Over”

Compositing: Set Scene

Tick off “Premultiply” Select ”Voodoo_render_cam”

Compositing: Output Video

You can change

“Sequencer view”

to "Preview" or

"both“ to preview the result

Compositing: Set Scene

Set “Start Frame” and

“(Video) Length” Set video resolution, Frame (time) range & Frame rate

Compositing: Output Video

Select output video type Select output

Compositing: Output video

Click Animation! Example of Composited result

Reference

• Blender

– Official website

http://www.blender.org/

– 2.57a release log

http://www.blender.org/development/release- logs/blender-257/

– 2.57a demo

http://vimeo.com/21780715 – Overview of 2.57

http://vimeo.com/22358302

Reference

• Blender

– Basic video tutorial for 2.56 & 2.57 [1~8]

https://www.youtube.com/watch?v=WSj23GDGNiI

– Basic video tutorial for Blender and Voodoo [Older vision]

http://www.youtube.com/watch?v=kPZbtKQ1a4g http://www.youtube.com/watch?v=dREGzpAGKyA – Older versions

http://download.blender.org/release/

Reference

• Python problem between Voodoo and Blender

– Voodoo camera tracker and blender 2.57 fixed http://0rz.tw/PqDVr

– Voodoo camera Import (io_import_voodoo_camera.py) [Official released]

http://0rz.tw/BNDm8

• Voodoo document website

– http://0rz.tw/c2ceR

Reference

• 使用 Blender 以及Voodoo 來模擬子彈飛行

– http://newwork2000.blogspot.com/2009/10/blog- post.html

• K-Lite Codec Pack

– Mega http://0rz.tw/df0m1

– Full, Standard and Basic http://0rz.tw/690HM

• Video Editing Tools

– 威力導演、繪聲繪影、 …

– Sony Vegas, Adobe After Effects, Premiere, …

• Sound/Music Editing Tools

Thank you

for your listening