This assignment is trying to let us use our imagination to add any elements we want to the video based on this scenery and the hot air balloon model we made.
So the story I made was about a hot air balloon that gradually appeared with particle effects and then flew away, and then alarmed the three cats hiding behind the mountain
The model of the hotballoon is made by MAYA
Since I wanted to have an artificially controlled gradual effect, I recreated the shader in blender to control its opacity
This course has learned about the node of rotopaint, which is mainly used to erase unnecessary parts of the material. Among them, you should also pay attention to the use of the node Cornerpin (generating Cornerpin with location information through tracking points).
The Full Nodes:
Rotopaint:
Add shadow:
Reference resources:
https://pixabay.com/videos/minecraft-green-screen-fox-lowpoly-43551/
https://pixabay.com/videos/dance-green-screen-mindcraft-steve-46012/
http://3png.com/a-29180402.html
Tutorial:
Add shadow:
how to create shadow in nuke ( green screen) |shadow in nuke | nuke shadow tutorial
Method1:
Method 2:
We can use this method to track B when A is front B.
2D Tracking, Roto, Screen replace in Nuke
Roto: keylight
Dissolve node
Dissolve creates a weighted average of two inputs.
Multiply node: add it before merge node –the value can control the homepage and the original video
The effect of page scrolling: set keyframes of Transform node, add motionblur
The full node
final：
details：
the full node：
composition of the hot balloon
Roto by Nuke
We start to learn some basic about Roto in Week 4, as well as more advanced practices in Week 5
About Time