Wednesday 28 December 2016

Assignment 1 - Five Potential Ideas

1. Star Trek Teleportation

My first idea is a teleportation scene, a bit like the ones from the Star Trek movies. It would not be too complicated, just an empty room and then a person appearing with some lights. This would require some green-screening and some colour grading to make it work.


2. Animated Butterflies

My second idea is to have either one or several animated butterflies burst out of a box. The number of butterflies depends on how difficult it is to achieve and how things look. This would require some animation, rotoscoping and tracking to create the butterflies and have them interact with the box.


3. Ball Bounce

My third idea is to create a simple animated ball bounce, but have it interact with a real background. This would require some animation and some 3D tracking in order to have the ball look as though it exists in the scene.


4. iPod Silhouette

My fourth idea is to create a silhouette video, a bit like the iPod ads. This would require some rotoscoping to separate the figure from the background and some colour grading to create the silhouette effect.


5. Magical Book

My fifth idea is inspired by the old Disney princess movies which starts with a book magically opening on its own. This idea would require either some green-screening or rotoscoping to make sure that the book appears to open without me touching it, some colour grading to enhance the atmosphere and possibly a magical sparkle created inside of After Effects.

Saturday 24 December 2016

Assignment 1 Reflections

Keying:

For me the hardest part of the keying exercise was masking off the blue patch on the footage. I had to use two masks, one to remove the green screen equipment from the edge of the footage, and another one on top of that to remove the blue patch.

To achieve the optimal result for the keying exercise I had to use two masks, one to remove the film equipment that was visible in the edge of the footage, and a second animated mask to remove the blue patch. I also had to play with the brightness and contrast of the backplate to match it to the footage as the shadows were too light.

I think that the edge of my keyed footage might be a little fuzzy, which is something I would have liked to tweak. Other than that, I believe it was quite a successful attempt.


Rotoscoping:

For the rotoscoping exercise I found that the hair proved to be the hardest part. Finding a balance between showing the hair and leaving parts of the background visible required some work and I did lose some of the hair in the process.

I did not have to use any tools outside of the rotobrush and the refine edge tool for the rotoscoping exercise, though I had to spend quite a bit of time with those two tools to achieve a decent looking result.

I could definitely had improved on how I handled the hair. I would have liked to start over and take far more care over setting up my rotoscope so that I did not lose the edge of her hair, nor include parts of the background.


Camera Tracking:

The hardest part of the camera tracking exercise was making sure that the tracker followed a smooth path. During my initial attempt I had to manually set the keyframes for a section of the tracker and one frame was incorrectly placed. This resulted in the backplate jumping. I had to redo the entire tracking sequence to correct that one frame. 

Because I had already set up the masks and adjusted the colour and brightness of the backplate during the keying exercise, I had little to do to get the best possible result for this exercise. 

I think that this was quite successful with little that I would improve upon. All that I would do is check that there are no keyframes for the tracker that make the backplate jump, as that is quite noticeable.


Colour Grading:

While the colour grading exercise initially seemed quite easy, I did find that it required a large amount of careful tweaking to achieve a decent looking result. My first attempts were either too green, or too red, which meant I had to try several times.

I used several adjustment layers to achieve my end result in the colour grading exercise, including a levels layer to remove the green tint from the footage, a shadows/highlight layer to darken the shadows, a curves layer to tweak the light/darkness of the image, and a vibrance layer to alter the saturation of the overall footage.

I would have like my colour grading to have a more definite style to it. All I did was optimize the footage as best I could. The original footage was slightly green-tinted, which I did not realise until I had begun the colour grading. That was something I wanted to fix, as well as making the shadows bolder, because the footage seemed a little washed out.


Footage:

If I was to re-film the footage we used for the keying, camera tracking and colour grading exercises, I would have been more careful to avoid shadows across the actor's face. This is something I noticed while completing the exercises. There are definite shadows from equipment that do not belong in the scene and they are slightly distracting.

I would also do something about that blue patch. There seems to be no real purpose to it other than to test our ability to use masks. 

Colour Grading Exercise


Colour Grading Exercise

Camera Tracking Exercise


Tracking Exercise

Rotoscoping Exercise



Rotoscoping Exercise

Keying Exercise


Keying Exercise

Saturday 3 December 2016

Week 1: Compositing Videos



This video shows the making of Terminator Salvation, breaking down several scenes to show how each element was made and how they were combined into the final result. Each example shows the final result, then it shows how the layers were built up.

I was most interested in how the actors interacted with the virtual elements that made up the final result. An example of this is the mechanical parts of some characters. I assumed from the final result that it was make-up that create those parts. But once the compositing breakdown began, I discovered that it was entirely created in the compositing phase.

The use of photographs in 2.5D layering to create the background was one technique used here that was described in the iLecture this week. I'm also fairly certain that much of the movie was create using green-screen.

This video gave me an understanding of how much work is done on movies during the compositing phase, and how careful use of compositing can enhance a movie far beyond what could have been achieved in real life.



This is a commercial for a brand of yogurt that comes with berries and chocolate shavings to be stirred in once the product is opened. It uses this as a selling point, making the berries and chocolate look fresh and whole, unlike yogurts that come premixed.

I chose this video because it uses 3D animation for most of the elements, such as the berries, the chocolate flakes and, during parts of the video, the yogurt itself. This is different from the techniques used in Terminator Salvation, my previous video. I was interested to see that almost nothing in the video is real. The advertisement for the yogurt is entirely created using 3D animation and does not rely on the qualities of the real yogurt.

This video used both 3D animation and 2D layers to create the final result, utilizing many photographs in the process. These are all techniques that were mentioned in this week's iLecture.

The Ehrmann Yogurt Commercial gives me an idea of the realism that can be achieved with 3D animation, plus some techniques that are used by advertisers to make products more desirable, while not relying on the actual product.



This is a breakdown of the special effects and compositing techniques used in the movie Pacific Rim. Rather than show a clip multiple times with different layers visible, this breakdown turns on and off layers without pausing, which made it a little hard sometimes to see what is happening.

I chose this video because it uses quite a lot of visual effects due to the subject. After all, we don't really have enormous robots.

I was surprised when watching this video to discover how little of the Jaegers was faked. While some moving parts were done using animation and photographs, much of the inside of the Jaegers seemed to be physically there. Pacific Rim utilized green-screen along with some 3D animation and other special effects.

This video showed me how the balance between what is real and what is added during compositing can be changed, depending on the subject of the film and what techniques are being used.


 
Mezzo "Leap" Visual Effects Breakdown | Compositing Supervisor from marc dominic rienzo on Vimeo.

This video shows the breakdown of the techniques and effects used to create a scene of several people running and leaping through an ideal and beautiful area. Unlike some of the other videos I looked at, this video does not pause and reveal the work that went into segments of the video, but divides the video into three sections, each showing a different stage of production.

I chose this video partially because it was interesting to see how special effects and green-screening can be used for more than film making, and partly because it relies entirely upon these techniques. 

What I found interesting about this video was how much of what I saw was faked using compositing. There was very little aside from the actors that existed before the compositing process began. I knew that green-screen is a powerful tool, but I had not realized before how effective it can be when combined with animation and photography to create a virtual world that appears real.

Mezzo "Leap" Visual Effects Breakdown showed me how powerful green-screen can be, and how it can be combined with other techniques. 


Mirror Mirror - VFX Breakdown from Rodeo FX on Vimeo.

This is a visual effects breakdown of the movie Mirror Mirror, a retelling of the Snow White fairy tale. It shows several scenes of the movie, including some aerial shots that were entirely built using special effects and some green-screened scenes. 

Because this movie is set in a fantasy world, most of the film required special effects, which means that it is an interesting example of how special effects can be used. I was particularly interested in the aerial shots of the world, because, unlike most of the breakdowns in videos that I've seen during this exercise, it is entirely virtual. 

As I said, this movie uses a combination of special effects to create the world, and some green-screened shots, primarily used in indoor situations. Some parts of the buildings were probably real, but everything outside seemed to have been created using special effects.

This video showed me how special effects can be used alone to create a believable, if somewhat fantastical, world. It also showed me how green-screening can be used to keep the appearance of the movie consistent when combining special effects scenes with portions using actors and props.

Tuesday 29 November 2016

About

Hi, I'm Charlotte,

I'm a nineteen year old Digital Design student from NSW. This is the end of my first year of full time study. My main interest is animation, although I have found other parts of my course interesting, such as the web design unit that I studied last year.

As my interest is mainly in animation and CGI, I want to gain an understanding of what role compositing plays in the production of movies. I'm primarily looking forward to the practical part of this unit, using compositing to create something. While I find the theory interesting, I usually find practical application of this knowledge most enjoyable.