Coding 8, Section 13 – Sets and Staging

For 8^th grade Science/Coding I am doing Pixar in a Box in Khan Academy.  Currently, I am doing the thirteenth section in the course, Sets and Staging.

The thirteenth section in Pixar in a Box has two parts: “Geometric Transformations” and “Mathematics of Rotations.”  I will not be doing the second section because it is for high schoolers and uses trigonometry, which I am not familiar with.

Part One

In part one I learned how to make sets for movies.  In the pictures below, you can see the scenes I made.  In the final exercise I was able to scale, rotate, and translate (move), the items around the room.  I also learned that you have to translate, scale, and rotate the items in a certain order or the scene will not come out the way you want it to.  First you must scale the item, then rotate, then move or translate, to its spot on the screen.

I also learned about commutativity.  Commutativity is when order does not matter.  In this case, the order of how you scale, rotate, and translate.  When creating your scene, it is non-commutative, which means the order of the steps matter.  But when something is commutative, it means the order does not matter.

Example: if you scale an item by 5 then translate by 10, it will not look like translate by 10 then scale by 5.

Example: if you put the x position of the item then the y position, it will look the same as putting the y position then the x position.

That is all for this essay!  My next essay will be about the fourteenth, and last section of Pixar in a Box from Khan Academy, Rendering.  Thanks for reading!