Saurabh Waikar's Blog

Month: December 2022

Categories
Compositing VFX FUNDAMENTALS

WEEK 9: NUKE

This week mainly focused on cleaning in nuke. removing elements that are unwanted is a very important step in the movie industry. though it’s challenging it’s also very essential. Cleaning up the scene is obtained by taking all the previous lectures into consideration. For this video I have cleaned up a paper on the brown board. It was obtained with the help of paint tool which helps me in cloning the colour surrounding it. With the addition of track the paint was stuck to the point on the board for the entire video.

Along with the cleanup I have also added a ground break to the plate. This ground break was created by me in the past in the software of Houdini. It specifically was created for a green screen project. Basically the ground had various constraints such as glue, active region etc. and with the help of external forces it breaks into pieces. I’ve given the groundbreaking a green texture which could be keyed in any software.

this helped me in achieving the shown result.

Categories
Compositing VFX FUNDAMENTALS

WEEK 8: NUKE (Planar Tracking)

Final Result

Addition of the poster with the help of planer tracker and roto
Addition of the poster with the help of planer tracker and roto

The task this week was to change the advertisement on the given video.

To obtain the result I have used planer tracker, which helps in tracking a particular plane or a surface and give a 3-D visualisation or a four point play in two us. The difficult part of planner tracking is that it gets messed up if the point given collides or disappear at a given frame. To solve this problem what I did was I change the reference frame to where the points are clearly visible. After the track is done I have taken the corner pin absolute node in order to get the exact transformation of the track that was taken.


This corner pin track was added to the two advertisement which I transformed colour graded as per needed to match the given plate. After this I pray multiplied it so that I can get the alpha of the images on the advertisement that I wanted to be there. After this step I rotoed the pole and merged it along with the main plate so that it is on the top of the advertisement as I wanted to be.

Categories
MAYA

WEEK 9: MAYA (Animation)

The goal for the week nine was to Was to give talking animations to the Geometry of the face.
The process began by choosing a reference video for the animation that we had to create for the geometry. For the same reference I chose a video from Disney movie called as Moana, where she had to leave her grandma behind and she can’t do that. I chose this specific video because in this video the character had proper expressions on the face, movement of the eyebrows, it moves its head accordingly and it also had proper lip movement which is not too complex but simple and effective.

After the choosing of the reference video, we started by giving proper animation to it. The first step was to move the jaw according to the character in the video, how it opens the mouth, closes the mouth and so.
Then, with the help of the blend shape node we tried creating the movement of the lips match that of the character in the video.
Later on the next step was to combine the expressions of lips with that of the eyebrows (the frowning and blinking which we did in the previous week) and create proper animation out of it. This was the hardest step as we had to do the proper animation by moving all the blend shape together and key them from frame to frame. While doing these Animation the blend shape node usually used to tackle itself as it’s included various shapes and animations and create a weird looking animation which we have to be vary upon.

Along with this, The second Main thing came into the consideration that is the movement of the head. Movement of the head gives information of how the character talks, how the character moves and resulting into causing extra smoothness in the animation. This moment was obtained by moving, rotating and transforming the bones from the rigging process.

Lights
Keys of Animation – Graph Editor