Month: March 2023

The teacher was sick this week, so I made my own table top and added lighting.

I found that I misunderstood what the teacher was saying, those images were for the CG machine to better incorporate more stuff into the composite rather than the need to make a new UAU.

FIRST ONE（infact is last week one)

Write the position of the wall and the position of the candle by write geo, then read and give the material in maya

When I exported I found that each layer of aov had each become a file! I eventually found the setting to merge the aov in one file in the export settings. Because I can’t imagine I’d have to manually composite a dozen files in nuke haha

I put the final touches on the roto I made

The second one

At first I created only simple masks and toning, without distinguishing between the edges and the core. And because of the keylight the green part of the foreground was removed! And part of it was lost. So the initial result was particularly bad. I asked my teacher, who told me to refer to other examples to create separate masks for the edges and the centre, so I modified the second version. And used roto to snap out the removed green in the foreground.

First Edition：

Revised version

（Look at my cute little green ball! UWU）

This week’s main content is about green screen compositing

We started by learning about a new colour format, HSV, which is different from RGB, and how to use hsv to process image information.

We learned about the nodes of the key and how they operate. And tried a few different methods for toning and key.
Afterwards we tried the complete process for practice.

Lumminance channels：

I think it is essentially a partitioning of the image into blocks by different colour channels.

The main nodes used are keyer and colourspace.

We can use them for simple masking and colour manipulation

For green screen:

This lesson is a brief introduction to the nodes that have been used. They are IBK, chromKeyer, keylight, Primatte, Ultimatte.

They have their own characteristics and in general I think that keylight is the most widely used node.

There were a lot of new theories and points of knowledge in this class, which at the time I thought they were simply colour mixing. But now after re-reading the class documents I have a better understanding of these nodes

I switched up my production content this week because I thought the first one was too easy and wanted to make something more interesting with mash.

Making this cube mash is divided into three main steps.
First make the smallest square
Then create a variation of the plane made up of the smaller squares
Finally the final cube is created

irst make the smallest square：

Then create a variation of the plane made up of the smaller squares：

Use mash to duplicate a square group of squares and add offset to create a change in height difference and angle difference. And adjust the keyframe so that it splits into two variations.

Form the faces into a new square

Final result