“Matchmovie Example footage 2 Stage 2” is basically the pre-visual of composition to give you a visual idea, what you can create using "Matchmovie Example footage 2 Stage 1" footage, that’s all. You can also plan in your own concept. I shall publish the final output of this composition very soon.
Tuesday, January 4, 2011
Monday, January 3, 2011
What is “Rotoscoping”? (Part II)
For a quality keying process (Blue Screen, Green Screen, etc) rotoscoping is most important thing. In keying rotoscoping process can be use in two separate ways; one is “Effect Mask” another one is “Garbage Matte”. If we use any roto shape as “effects mask” it will help to control the area, where you wants to apply the effects of keying in particular area of footage or where you do not wants to apply the effects. But we use roto shape in keying process as “Garbage Matte” when we wants to remove any un-wanted area from the footage which is not required any more to the next level of production/output. So it is quite clear that rotoscoping is very important to control the keying process. Hope the below mentioned examples (created in Fusion) will help to communicate the importance of rotoscoping in a keying process as “effect mask” and as “Garbage Matte” more clearly, .
Example I:
RapidShare Download link: http://rapidshare.com/files/440510630/G_SD_listening_to_music_MS.avi
Footage Description: Sourav acted in front of green screen, when he was student; now he is working in Red Chillies Vfx. Using this footage you can create a composition of a mobile ad, like; he is listening to music and environment is dancing behind him, he is standing in a bus stand, he is standing beside a busy road etc. Now think about a good composition which is suitable for your showreel/demo reel, its free to use. But you can’t use it for commercial purpose.
Original Footage Print Screen:
In this example footage; nothing is important in the scene except the character and his props so you can easily define the area of “Garbage Matte” something like this:
If you create this “Garbage Matte”, then only you can able to concentrate on the details of hair and props. If you study the footage, the movement of the character is very minimum and as we are using keying conception, in that case you can use rough rotoshape to remove garbage area. The keying process will return you the cut-out/matte to composite the character with any BG.
Problem area in Matte:
In this example, rotoscoping as “Effect mask” is also important. When I am using keying method, I am facing problem to maintain solide matte for those area of sunglass where the specular is coming and bright reflection is also coming. For this area I used rotoscoping technique to remove the effect of keying. In that way I maintain this area opaque.
Final output matte/cut-out:
Example II:
RapidShare Download Link: http://rapidshare.com/files/440514181/Movie_07__02981_.mp4
Original Footage Print Screen:
In this example footage a small girl is dauncing; in that case the character is moving very fast in a wide range of area in front of green screen, according to the requirement of the music ( Gazab.mp3). That’s why I have defined the area outside of green screen only as “Garbage Matte” using multiple roto shapes.
You can use one roto shape also; you can also use roto shape very close to character to get more perfect output. But in that case you have to animate the roto shape more accurately. In my example, I had animated the shape roughly.
Final output:
N.B. : In keying process, to support keying, you can do that but in case of stereoscopic conversation and to create cutout/matte of character/object from BG you need 100% perfection. I shall discuss that section very soon with example in “What is “Rotoscoping”? (Part III)”. Your suggestions and comments are always welcome to improve and rectify my knowledge. If you are a professional please do comments on my post, I shall be grateful to you. Once again "Wish you all a very happy and prosperous new year", enjoy.
Example I:
RapidShare Download link: http://rapidshare.com/files/440510630/G_SD_listening_to_music_MS.avi
Footage Description: Sourav acted in front of green screen, when he was student; now he is working in Red Chillies Vfx. Using this footage you can create a composition of a mobile ad, like; he is listening to music and environment is dancing behind him, he is standing in a bus stand, he is standing beside a busy road etc. Now think about a good composition which is suitable for your showreel/demo reel, its free to use. But you can’t use it for commercial purpose.
Original Footage Print Screen:
In this example footage; nothing is important in the scene except the character and his props so you can easily define the area of “Garbage Matte” something like this:
If you create this “Garbage Matte”, then only you can able to concentrate on the details of hair and props. If you study the footage, the movement of the character is very minimum and as we are using keying conception, in that case you can use rough rotoshape to remove garbage area. The keying process will return you the cut-out/matte to composite the character with any BG.
Problem area in Matte:
In this example, rotoscoping as “Effect mask” is also important. When I am using keying method, I am facing problem to maintain solide matte for those area of sunglass where the specular is coming and bright reflection is also coming. For this area I used rotoscoping technique to remove the effect of keying. In that way I maintain this area opaque.
Final output matte/cut-out:
Example II:
RapidShare Download Link: http://rapidshare.com/files/440514181/Movie_07__02981_.mp4
Original Footage Print Screen:
In this example footage a small girl is dauncing; in that case the character is moving very fast in a wide range of area in front of green screen, according to the requirement of the music ( Gazab.mp3). That’s why I have defined the area outside of green screen only as “Garbage Matte” using multiple roto shapes.
You can use one roto shape also; you can also use roto shape very close to character to get more perfect output. But in that case you have to animate the roto shape more accurately. In my example, I had animated the shape roughly.
Final output:
N.B. : In keying process, to support keying, you can do that but in case of stereoscopic conversation and to create cutout/matte of character/object from BG you need 100% perfection. I shall discuss that section very soon with example in “What is “Rotoscoping”? (Part III)”. Your suggestions and comments are always welcome to improve and rectify my knowledge. If you are a professional please do comments on my post, I shall be grateful to you. Once again "Wish you all a very happy and prosperous new year", enjoy.
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