It helps us reorder in nuke
Lens Distortion.
All camera footage is shot through a lens. A lens is a series of curved pieces of glass that bend light and “focus” the rays on the image plane.
Some lenses have very low amounts of distortion and won’t affect a track too badly, but the wider the lens the more severe the bending of light will occur. Look for straight lines like walls. These will look curved.
In this lesson we learned how to handle lights in maya and render photos using the Arnold renderer.
Add new material in arnold
This is a rich material site that contains a wide variety of HDR stickers
Using Arnold materials can make the robot’s shadow transparent into the background, making the object more realistic.
For this assignment, I needed to track the ground collapse material to move it around, so I found the knowledge points that Gonzalo covered in week 7 – the tracker node and the cornerpin node.
In this section, I first imported the ground broken material and added the saturation and grade nodes to adjust the color to help the material blend into the picture and make the picture more natural.
Because I wanted to create the effect of an earthquake, of the ground collapsing. I erased all the posters from the classroom walls and found a few posters in my favorite style that I thought would go well with the theme.
In order to erase the green safety exit sign from the wall and with the ideas provided in this file, I am now able to see very clearly what each node is used for and the GRIN node helps me to eliminate noise and make the image more harmonious.
Above is a video of my presentation and with background music to simulate an earthquake. However, I don’t know how to deal with the falling objects because the lamps on the ceiling in the real scene will fall down during the earthquake. And I hope that in the future I can create a window breaking screen, so that I can simulate the earthquake scene more completely！
Since I felt that the scene was very empty except for the part with the Buddha statue, I talked to Manos on Monday about the possibility of adding some walls, pillars or flags to the scene. So I started to build them in maya and used zb to add the Chinese pattern.
I found a reference picture that helped me to establish an understanding of the scene and be clear about its structure
I used the roof that I built earlier, and I continued to change it to this side wall
When Manos was helping me look at the scenarios, he told me that I could use alpha or normal to add subtle patterns to objects inside sp or zb, which helped me a lot. I think this is a very useful bit of knowledge and will help me quickly refine the content and details of the scene.
Using “curvature” in conjunction with the “dirty” map, you can create more rust marks and details on the stone pillars.
It’s very easy to use the mesh fill inside the sp, I don’t need to split the objects and I can spread the uv’s together and paste the materials at the same time.
In visual effects and video editing software. DEFOCUS NODE (blur node) is often used to simulate a focus effect, where the focus of an image or video is adjusted so that certain areas become blurred to mimic the effect of a camera’s focus adjustment.DEFOCUS NODE is used to create a depth-of-field effect, where some parts of an image are kept sharp while other parts become blurred.
The RotoPaint node allows users to perform repair and painting operations directly on an image or video. This is useful for fixing flaws in footage, hiding unwanted elements or adding extra details.
2.If I need to perform an image matting operation, I can use the roto paint with premult.
3. there is brush size can change the scale of object.
4. through the alpha of gain, the size of the particles can be adjusted to make the picture look more natural.
5.the combination of stmap and roto can distort the picture.
Immediately after making the hot air balloon model. I’ll put it in the Arnold renderer to see if its camera is intact and in motion.
But I have to say that after I made the hot air balloon material inside sp, I don’t know how to import the texture into maya. So I studied the tutorial posted by manos in the group, it’s a very helpful plugin, I just need to select a texture path such as the base color texture. This plugin helps me to connect to the rest of the maps and saves a lot of time.
I exported a tif file that nuke applies.
To make the mountain look like it’s moving and to add tracking. I used the “time” node to adjust the time, which is an easily forgotten but very useful node.
First of all, I need to create a ladder for the scene. The steps I made at the beginning I thought were dull and unrealistic, so after looking for references on the internet I made another version of the steps and added it to the scene, which is more realistic and complete than the previous version. Finally, I used SP to create the texture of the stones.
I used zb to carve the shape of each step to make them look as irregular as possible.
But when I imported this staircase into the scene, I thought it didn’t look good and appeared too regimented.
Next, I’m going to switch to another idea and try again to build a staircase that is more in line with the style of my scene.
My experience in making stairs twice taught me that when I need to make individual objects in a scene, I need to find a lot of real-life reference images to make them as detailed and less rule-based as possible. Therefore, while refining the scenario, I need to make the atmosphere of the scene as consistent as possible so that it looks more complete.
I replaced the mapping of the Buddha statue with sp because I wanted to create a dimmer environment with mystical powers. So I didn’t use the normal stone material for the statue. Instead, it was replaced with a metallic body and has some flowing red elements in the seams, which is part of the story.
Next I will refine the details of the scene and add lighting.
Correction, I decided to change the red aperture on the back of the Buddha because after discussing with manos, I thought it was very fake
For this assignment, I will be creating a new area to create a poster trace. This is because it will help me to memorize and better understand the logic behind each node. The process is roughly as follows:
1. Use “planartracker” to roto the approximate location of the first poster and turn on the tracking.
2. Create a “cornerpin2D(relative) in “tracking”
3. input the poster image of your choice, do roto and premult, and add “cornerpin2D” to help the poster to locate in the position of the original video.
4. connect the original scene with the poster replaced.
For the node, I handle them in a similar way to the iPhone cell phone animations, first roto, then turn on tracking afterward, and finally in premult. While processing I found some errors, for example only the first frame has an occlusion relationship, this is because the tracking module is not enabled and the roto needs to be manually adjusted for displacement.
the grade component cannot be inserted between the transform, which will cause blurring.
motion blur must be placed at the end of all nodes, otherwise there will be problems and must be placed in order.
defocus will make the picture more natural.
Today Emily describes the function of each camera, such as (Camera Actor): This is the most basic type of camera used to capture scenes in the game world. The camera can be attached to the player character or a specific location to capture content in a specified area. It is usually used for first or third person view.
camera rig rail, which is a special camera type used to create customized camera paths. It allows me to customize the movement of the camera, simulating the action of a slide rail.
Simple bindings to simulate rocker type cameras
The larger the aperture, the blurrier the background and the greater the depth of field. The smaller the aperture and the clearer the background, the smaller the depth of field.
We’re going to go deeper into the mirror sequence, and then I’m going to add different scene animations to my own personal final work, and export the abc file from maya to my sequence to create the “fabric flutter” animation.