Today in VFX we’ve been learning how tracking in After Effects and there’s 5 types of tracking that can be used;
- 1 Point: A 2D process that follows X and Y axis of a point on the screen
- 2 Point: A 2D process that calculates the Z rotation and changes in scale of an object or shape.
- 4 Point: Follows the movement of the camera. 4 corner pinning (projected perspective) process to track a rectangle
- 3D Camera Tracking: The camera follows through the shot
- Planar Tracking: The region of the image.
Now I know at this point the information on those last few is not as great as the begging couple of points but I didn’t get them all scribbled down before the slide moved on so forgive me if they’re wrong and I’m going to try to get the right information for later reflection.
So today’s lesson was to use the 3D tracker in a scene and that scene we were going to have our names appear. We opened a new composition in After Effects, selected the 3D Camera Tracker and wrote our names in a ‘nice chunky font’. Next we imported some video and switched on the detailed analysis. this prompted the computer to render the scene which created lots of flowery-like dots over it. It was explained that these dots were points of movement which the computer had found in the video, and it’s these points where we could attach or anchor different visual effects to…like our names for example.
We chose three points in the field of ‘flowers’ and a kind of bull’s-eye appeared which showed the centre point. On this we created a ‘catcher’ and made sure the camera button underneath the image had been changed from ‘Active’ to ‘3D Tracker’. And as if by magic my name appeared in the air!
The rest of the lesson was all about the logo we’re producing. I’ve been thinking of how I want it to be revealed since I already know how I want the final image to look. I’ve been drawing some concept art of it (which I can’t find at the minute but I will later) and I’ve used my thoughts to show what I’m imagining. I’m not entirely sure if this is the final way I’ll show it or if it’ll change slightly as I carry on but for now at the very least, this is how I’m looking to show it off.
The idea of having the wording 3D still stands, its just I wanted to get something down and animated so I could see it in action and see how I feel about it – turns out I do like it a lot!
I couldn’t see how to make a simple line appear so I had to get creative instead. All the line is is a letter ‘I’ in a different font that’s squashed and stretched out to create an underline. This fits well with what I’m aiming for as the wording will eventually have a frost creeping across it (hopefully with a hardening sound effect if I make it that far) once the wording stops moving and as the underline and lower wording comes into view. Its looking at that underline that gets me seeing it creeping in like a frost takes over, I can almost hear the cracking of ice as it moves. This wasn’t intentional, all I was looking for was an underline to appear, almost like a filler between the main body rotating and the ‘studio’ wording appearing. As it happens, its a happy accident and I like that a lot.
Peter has a few ice samples that I like and I’m hoping to get those letters into 3D with the textures applied to them in the next lesson.
Already I’m thinking of adding something to it; like keeping everything the way it is but have the wording appear closer to the screen at the beginning and moving a little further away by the time it sets in place to give the illusion that the viewer is revolving around it.