Introduction.
In this lesson, we learned about previsualisation.
What is previsualisation?
Previsualisation (shortened to previz) is the process of creating a simple, stripped down version of an animated sequence in 3D software so that you can build on it later in production. The 3D models that are used are very basic compared to the models that will be seen in the render. The animation is also very basic and serves more as an outline of the movement that will happen in the final render. A previsualisation is similar to an animatic but used for 3D animation rather than 2D.
Why is previsualisation used in production?
The purpose of previz is to make sure that the sequence being animated looks the way that the filmmakers intend before spending a lot of time and effort creating the final result. It can also be used to help actors know what to do when they’re acting out the final scenes (previz was used while making the star wars prequels to help the actors act convincingly that they were part of the star wars world while sitting in a spaceship set piece surrounded by blue screen). It saves time on filming scenes because almost everything has been decided before filming.
Examples of previz.
Below are some images of the previsualisation of Sonic the Hedgehog
Creating my own previsualisation 3D model.
I chose to model a Yamaha B1 upright piano. I found a few 3D models of this version of the piano and so will be using them as reference. Here I will compile my references.
How is it made in real life?
Made in Jakarta in Indonesia, the Yamaha B1 is built on an iron frame using wood that has been cut and processed by CNC (stands for Computerized Numerical Control) which is where a computer program controls a machine that works on an axis to cut out a shape from a piece of wood.
Size/scale of the piano?
(specifications taken from a piano shop website called Miller’s)
| Height | 1090 mm |
|---|---|
| Width | 1480 mm |
| Depth | 540 mm |
| Weight | 174 Kg |
How does it move?
On the outside, the piano keys press down and the pedals at the bottom of the piano are designed to be pressed down by a foot. There is a hinge that controls the lid that covers the keys, as well as a hinge on a shelf for placing sheet music onto. On the inside of the piano, hammers that are controlled by the keys strike down onto different strings depending on the key that is pressed.
Does anything make it unique?
It is unique for its low cost, which makes it a piano that is marketed as entry level to newer piano players.
Will the piano be animated?
no.
Will the model be a hero asset, or in the background of a shot?
I intend for the piano model to be a hero asset – meaning that the previz model I make would be a predecessor to a version of the piano that I will try to model in as much detail as I can.
How many different primitives will I need?
Since the shape of the Yamaha B1 is quite boxy and simple, I will probably just be able to use cubes to model the piano from.
Starting to make a previz model.
