Wednesday, 15 May 2013

SS2: Research

The art of digital matte painting is a powerful technique for film makers. This makes the art of film making so much easier yet so much more ambitious. An effects editor can use matte painting to bring film to life by creating any living location they desire, space, heaven, forest, etc... this most of the times impress the traget audiences at the same time.

Matte Painting is a visually altered painted representation of a landscape background that would usually be too expensive for a film company to build and create or even travel to. Live action video footage are usually combined with digital matte painting these days. The live action video footages were mostly filmed on green screen or blue screen if the subject has a green colour on it to give contrast. This technique is used to place actors into many settings which are impossible to go to.

These days Matte paintings are mostly digital images that are created by using photo references, 3d Models, and used drawing tablets. After creating the ideal paintings, it is then combined with the 3D model environments which allows 3D camera movement. This can be done by using Blender, Bonjou, Maya, After Effects, etc...

Chroma Key:

Chroma key compositing is a special effects post production technique for compositing where you layer two images or footages on top of each other based on colour hues. This is to remove a background from the subject of the photo or footage and replace it with a desirable setting or scene where matte paintings come to use. This is mostly seen in news casting, motion picture and video game companies. A single colour range in the top layer is made transparent which shows the background from behind. This technique is mostly used in video production and post production. The technique is usually called colour keying, or green screen and blue screen. colour keying can be done in any colour but mostly used Green or Blue because it doesnt key out our flesh colours.

I am a big fan MysteryGuitarMan because he combines his stop-motion music with special effects and visual effects. In my example below, he has used the special effects to change his shirt and guitars. First He has used his shirt as a blue screen and used Chroma keying to change the colour and rotorscope it to make the change seamless by using the guitars as dividers.

As for the acoustic guitar change, he has motion tracked a picture of the acoustic to the back of the electric guitar, and used a morphing program for it to transform to the ukelele, rotorscoping is then used to clean and merge everything together by fading it together. Some parts he had to motion track his dog on a green screen on his hand.

In this video, I liked the idea where he used a slow motion effect on the background and he is dancing and singing around in real time which makes him look like he is superman moving in the speed of light. He has accomplished this by recording a footage of the background on a slow motion camera which in his case, he only had a camera that can shoot 60 frames per second. in the second footage, it was shot on the same place but with a green screen at the back of Mysteryguitarman. this was shot outside on the same place to get the right lighting for the camera. The first footage was then imported in final cut pro or premiere pro and played at 24 frames per second to give a slow mo effect and then layered the 2nd footage ontop and keyed off the green screen to make him appear moving in real time. If the 2nd footage with him on it was slowed down, the song would also be in slow mo which it will kill the whole purpose of the whole video.

Reverse motion film, I think this is an interesting effect, I could use this effect on my film because it is very unique, I can tell a story as my actor walk and interacts with the surroundings.

I find this video very helpful for creating a short film and promoting myself

I would love to do some matte painting for this second project because it is part of being a visual effects artist. I will be taking some raw footages and manipulate it so it will blend well with the short film I am about to create.

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