Category: Nuke

This week’s session covered CornerPin 2D use. A moving image can have a picture replaced using the CornerPin 2D node. Its goal is to translate an image sequence’s four corners to a position determined by tracking data, or from that point to the picture sequence. In fact, you may substitute any four-corner feature with a different image sequence using this node. It might be used, for instance, to display a picture on a television.The tracker node can be used to generate four tracks on the feature that has to be replaced, one for each corner, for the picture to be replaced. After that, CornerPin 2D receives the data from the tracker nodes and connects it to the material that is being changed.

In this task we need to replace the posters on the street.I think we need to focus on the edges and tracking with perspective relationship when making replacements.

In Balloon Fesitival I tried to use Houdini to add some effects to it,such as adding some honeycomb Energy Shield to the surface of the Balloon. The initial tests worked well, but due to the timing of the rendering it is not possible to export the final film at the moment, I will compose and update it when it is all rendered.

I’ve made an energy shiled to cover the surface of the balloon and it will defend the thunder.

These were made in Houdini, so it takes time to render them. I will update the effects again when they was finished, but for now I have also exported a version of the demo.

2D tracking is a very important part of Nuke and we usually use cornerpin to adjust the image to the desired size. The use of the dissolve and delay nodes is also common, and this section still needs a lot of practice.

The nodes

Final:

During this week we worked on the roto section. In Nuke, roto is a very basic skill, but also an essential one. Any part of the workflow that is combined with live action will require roto processing of the image, for example green screen shots etc. In roto we should first analyse which parts are the main focus and then roto them in different areas to achieve better results.

In this video I have filmed the place where I lived when I first arrived in London and the most beautiful place I have seen in the last few days.

https://www.youtube.com/shorts/lIfYfQx5rlY

P1:I took this picture on the plane as I was quarantined in China during my first week. This means that I am about to head off to another country to start my life as a student.

P2：This was my first meal when I arrived in the UK. It was the start of a moment in time, and at the same time this cup of tea meant a leisurely afternoon.

P3：The dead branches on the ground represent the change of seasons and the change of time, and I am not only in a new environment, but also in a new season.

P4：The wait to go to the post office to collect my Brp made me very anxious, being in another country for the first time, in another language, to go about official business. The closer I got, the more excited and nervous I became at the same time.

P5：I love basketball. When I took this picture on the court, I had finished a full day of training and it seems to go a bit faster for me at training.

P6：The first time I saw Northern Line seats on the Tube in London I felt the vicissitudes of time.