All posts by Yingyi Cao

Week-9

Last week, the members of our animation team completed the layout based on the storyboard. My main job is to make special effects for some shots based on the layout.

firstly I downloaded the layout_6 file from OneDrive which is the part where I should make special effects. Most of our files are shared with team members through Onedrive. You can download the files you need from the above, or you can update your progress in real-time here.

When I got the shots, I found the camera that needs special effects, and then selected the objects and imported it into Houdini as the Fbx file format. In this way, after we finish the special effects, we can directly import them into Maya without having to make other adjustments to its position and animation. Then all that needs to be done is to import the effect back to Maya as an FBX file. On the basis of the previous week, I adjusted the effect. Make the pieces of the mask bigger. It is more in line with the effect after the mask material is broken and adjust the time when the mask broke. Let the mask shatter after falling, instead of cracking on the face.

Explosion test

Then there is the test of the explosion effect. In the process, I tried several different methods to make it more real. Here is the final result of the test. The first effect looks more like an explosion in the water. The second type of explosion is a bit like a large-scale explosion caused by a missile or a more powerful weapon. The third is our final choice, the explosion effect caused in the fight.

In the process, I found a video that helped us analyze the Pyro node. The impact of different options on the explosion effect.

Week 10

This week I finished my 3D composition assignment. Here is the final result. I encountered a lot of difficulties during the final rendering. Some problems have been solved but some problems still exist. In the next semester or when I finish all the assignments of this semester, I will come back to this project again and solve these issues.

Second version I made adjustments to some places.

The first difficulty is that I cannot remove the traces caused by the shadow matte. In the image on the left, you can see two obvious black squares. This is caused by ambient light. I tried many ways to make the screen show only the shadow of the object and not the shadow of the plane. I increased the shadow plane so that its edges do not appear in the picture. This is much better. But this will make the picture darker. I decided to solve this problem in Nuke.

In Nuke, I roto a part of the wall to repair the picture. But in this step, I still did not solve the problem of darkening of the picture. So I used a more clumsy approach to render the darkened background footage again in Maya.

In conclusion, this project gave me a more systematic understanding of special effects production. It may be one of the film production processes. But it let me know how most 3D or special effects shots show the final effect. And how to combine the 3D objects and 2D images together. Of course, I still need a lot of practice and study to control the overall picture. For example, include the adjustment of lights, the binding of bones, and the adjustment of object materials. Maybe in the next semester, I will start another new compositing project. It is used to help me master these contents and learn some other skills.

Nuke-week9 Green screen

Such an error occurred during the cutout process. It looks like the edges are at odds with the background. By turning off part of the node check, I came to the conclusion because I used a single-frame photo for the test first, and then replaced the photo as a video after the test. But I only replaced part of the footage. This is why the following problem occurs。

Sometimes the background is still there because of forgetting to change the attributes of the merge node.

Week-3

Based on the work of the past few weeks, we each started to follow up on our own parts.

Scene Design

Yann and I set out to design a single building. We took the Overwatch building as a reference and superimposed some repetitive structures on the surface of the building.

VFX

And this week I also received a request for special effects production. Shattering, explosion and smoke effects and so on. Jay and I also tried to do some tests during the week. Regarding the effect of the broken mask. I have made many attempts. For the first time, I used the methods I learned in class. Use the Dopnet node to edit the object. There was a problem when entering the node to link the object. No matter how I try, the object cannot appear in the node. Passing detection may be due to errors in the coordinate axis.

So I looked for another way. The result is obtained by solving the two nodes. Compared with the previous method, the steps are not so complicated. But some information is also missing. For example, the edges of the fragments are too flat. But this method is sufficient for our current previs.

Here is the result

Character Design

The character design is basically completed this week.The animation team will perform bone rigging and animation on them next week.

Storyboard

We also found some reference videos from Previs. Maybe the final effect will not be as complete as they are. But we will try our best to get closer to this effect.

week-7

After last week, everyone started their own work.

My main work this week is the layout and design of the scene. In the beginning, I directly found some existing models and combined them.

Discussion


But after discussion. We think that some models are too refined and complicated. It is possible to snatch the show. And everyone is more inclined to the architectural style of the game. So we decided to use simple squares to put out the street structure with different heights. Then do a separate architectural design. This simple model is also more convenient for the animation team to design the storyboard.

In addition, I found some reference pictures that are more relevant to our project. Our next street design may be more biased towards this reference map. The buildings on both sides are higher. Make the road a little narrower without too much protruding structure. Make the whole scene look more like a secluded alley. The streets in the first version above look scattered.

Next is the character design

In the future, the era of high-tech and low-life, the emergence of smart machines will bring new contradictions to society. The renewal of the government’s judicial system can hardly match the development of technology. The solidification of social class further leads to chaos, and excessive chaos brings new order. The intrigue among the upper-class society has also been brought to the table, and professional killers seem to have become an indispensable role for every upper-class power. And the bounty hunter system acquiesced by the government has given the people at the bottom a new way out, allowing society to maintain a stable but cold state to a certain extent. The masked girl is a bounty hunter, eccentric and agile. She grew up in a slum and was influenced by hip-hop culture. Dress more freely, there will be many cultural elements on her clothes, and she uses a short knife. When performing tasks, the attire is more capable, and she wears a mask to hide her face and does not speak.

Reference picture

The cyborg man is a professional killer with a strong body and a cold face. He is usually responsible for handling some people or robots that they hate for the upper class people. Frequent killings made him brutal, and while this job brought him money, it also took his arm, but fortunately he could use a high-techmetal arm instead. The metal arm has stronger strength and defense.

Reference picture

Nuke-week8

Our main content this week is green screen extraction. In the beginning, I tried to use a single picture as the material for the test. Then proceed to channel inspection. When all the steps are working, I will replace the pictures with video footage.

Regarding this footage. When I chose it, I didn’t notice that the background of this material was too flat and the color saturation was too high. When I processed it in Nuke, I found that its edges were too flat. It looked like footage that had already been processed. But I still finished it. Because I think this material is very suitable for some cool game scenes.

After that, I used two different methods to process this picture.

In contrast, the result obtained by the second method has softer edges. It may also be the result of different parameters.

Week 6 – project setting

At the beginning of this semester, we were told that we would have a cooperative project. But the actual start of the project is the fifth week.

This week I received an invitation from a friend who asked me if I want to participate in their project. They seem to have started planning the project earlier than we did. They already had preliminary plans when I joined. It’s an action scene. A masked girl and a mechanical man fight in an alley.

Here is the initial concept map.

There are 8 people in our group, and I am the only VFX student. I feel a lot of pressure.

Story:

The cyborg man is destroying the robot in the alley. He lifted the robot’s head and smashed it against the wall. Then throw it into the trash can. There are some robot limbs scattered around the trash can. Then the man took out a cigar and lit it, took a deep breath and raised his head to spit out smoke. He saw a masked girl with a short knife standing on the roof.
The girl squatted down from the roof and rushed towards the man. The man dodged hurriedly, and the cigar was cut into two pieces. The girl turned to the ground, her back to the man. The man stabilized his flustered figure and spit the remaining half of his cigar aside. The girl slowly got up, revealing the sign behind her back. The man looked disdainful and said, “Bounty hunter.”

When the group was established, we started looking for reference pictures based on stories and concept maps. According to their own feelings, everyone finds the pictures that they think best fit the story. Here are some reference pictures we found from the website.

Environment

Light Effect

After everyone shared their thoughts, we started to assign work.

Sean and Frank are responsible for the character design of the male. Yann and Yufei design the heroine. My job is scene design and special effects work with Jay and Yann. Layne and Sean work on the storyboard. Murry is responsible for the rigging of the character’s bones.

Nuke- week7 3D projections

This week we learned about 3D projection. Last week we did a three-dimensional tracking of the basement shot. The trajectory of the camera is obtained. So I did some processing on the original video. In the picture below, I have marked the areas that need to be cleaned up.

Here is the result.

After checking the homework for the first time, I found a small error in the previous video. At the end of the video, there is a point that has not been cleaned up. So after class, I checked my project files again. Found that the problem occurred in the location of the card.

When I rotate the card to a normal angle, the previous error will not appear.