Key-light 1.2 – Adobe After Effects

I wanted to refine my knowledge of using the key-light feature when using a green screen. We used a shot from our production to help see what our final result could look like.

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Firstly I imported the clip I was going to test on to After Effects. Then went to Effects, and selected the KeyLight 1.2, which will remove the green screen from the video.

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Then I selected the settings, here are the default ones, but what I do is I use the picker tool for Screen colour.

This then removes the green screen from the clip and replaces it with a black background (visually), but it is transparent (actually.)

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I wanted to make sure it had the best quality so I altered the screen matte of the clip. This makes the video see a clear difference between the person and the background. This is what it would look like normally.

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I kept altering the clip white and clip black settings, this made the black/white more vibrant and made a clearer difference. This helped a lot as this allowed any little particles in the video to be removed.

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Here are the final settings for the Key-light 1.2 for this green screen test.

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Next I added an image that represented an old abandoned hallway in a hospital, This was put under the video layer in the composition to take up the transparent space behind it.

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The background was very light and didn’t fit the mood that I wanted to achieve. Therefore I went to the effects section, then colour correction and altered it, to make it look darker and moodier.

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This then created a contrast between the background and the person, so i also changed the effects on them too. This involved changing the exposure in the colour correction tool to make them look like they are walking in the dark hall.

Here is the final result of the key-light 1.2 test.

Production Diary – Day 10

Day 10 – Today was probably one of the last days of shooting that we would officially be doing. As we have completed most of the shots that we needed, that of course is not including any retakes. 

We started off by preparing the Green room/ Studio room.

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We went and gathered the needed costume from the science department, then set up the lights so the surgeon would be two beaming lights from either side. Giving this halo/god light effect on her. This could even suggest it was happening in the past due to the hazy look.

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Here is what this looked like from the other-side of the room. There is a chair there are we started by shooting the surgeon sitting down and getting close ups of her face.

We also shot the surgeon ‘tools’, which consisted of a craft knife and modelling clay tool. We used the green screen for this as well as using the white walls in case the green screen wasn’t what we ultimately wanted in our title sequence.

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Then we moved on to her walking towards the camera, at a steady pace, as then we knew it would work better later on in post, we could increase the speed or slow it down. We did this a few times, once with Nicola holding ‘tools’ and sometimes with nothing other than the mask.

Production Diary – Day 9

Day 9 – Today was a slower passed day for filming, as we didn’t need any actors or extras. It mostly about getting more shots to use in post and to prepare for the next day of filming. I spent my time, prepping and recording more ink and sink shots. Whilst Nicola was creating a Folder for the next day.

Below is a time-lapse video of us at the start of the day, it shows us getting ready for filming/creating by cutting and ripping up photos.

Here is a shot I took during shooting of the yellow ink mixing with the red to create this orange, this will hopefully be used in our title sequence to go with the primary colours used so far. I also did a lot of close ups and used the photos from before and wrecked them in the water.

Above are two photos from the set of me sorting out what inks I would be using, I started by choosing the 3 primary colours and a piece of red soft pastel. I started filming with the pastel first, didn’t go exactly to plan, so I emptied the sink and refilled it. Then I moved on to the yellow ink, then red.  

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To do this, I held the camera in my left hand, whilst in my right I held a small paint brush flicking the ink into the water. Here is a photo that I took during filming of the ink mixing together. 

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Whilst I was filming Nicola was making this folder, after 2 hours I had to stop as it was getting too hard to film by myself, and therefore moved on.

I also tried experimenting with a piece of wool  I found. To create some interesting shapes and words. Didn’t have much more time on set, so I had to move on pretty fast. But as you can see above I attempted to create an ‘R’ which represents the R in Rose.

Production Diary – Day 8

Day 8 – Today we shot more things using water and blood. This time adding in the idea of a knife against the photos of the dead victims. This could show how and where the victims got hurt, or even the murderer getting ‘revenge’ back for where they hurt her. 

We started off by filming close ups (CU’s) of the photos and the knife, keeping it simple and only stroking the victim with the knife. Then I had the idea of ‘what if when we cut the photo, blood actually comes!’ Unfortunately our fake blood that we had created had been taken .  So we had to try and create this effect by using only acrylic red paint. 

This was surprisingly difficult as it is very thick and wouldn’t be the same consistency as blood. I started by cutting the images and ‘slicing them.’ Then we would cut filming, put the red paint underneath, then film again, showing me rapidly destroying the paper, whilst red paint or ‘blood’ was coming out. 

After filming Victim 2 first, we then smoothly went to film Victim 1. Which went well as the different location of the slices made an interesting look in comparison.

After carrying on filming we moved on to the sink. In simple terms, we put the photos in the sink, the blood washed away and made pink water. The images looked amazing and looked like the actual injuries did happen. The pictures were ripped and destroyed and simply… washed away.

Overall it was very successful and we made a lot of cool shots that were unique to our original plan!