Nuke: CG (Part 2)
ReadGeo node
- Used to Read/Import Alembic (.abc) / .obj / .usd files
- Can be rendered through ScanlineRender
StMap node
Functionality:
- An STMap is used for image distortion based on a UV map (STMap).
- It works by using the red and green channels of an image to define the new X and Y coordinates for pixel remapping
- The STMap node takes an input image and an ST map and warps the input image according to the coordinates defined by the ST map.
PositionToPoints node
- Converts a position pass (an image where RGB values represent 3D coordinates) into a 3D point cloud.
- Useful for visualizing the spatial layout of a scene rendered from 3D applications within Nuke.
Import 3D geometry and texture:
- Use the ReadGeo node to import 3D model into Nuke. Connect the ReadGeo node to a Scene node to include the model into 3D scene.
- Apply the STMap node to warp or adjust a 2D texture based on the UV mapping specified in the STMap image, using UV Expression . Connect your texture to the STMap node as the source.
Relative Path: Reconnect or keep plates’ directory by copy the project directory (found in project setting)
Example: [python {nuke.script_directory()}]
Paste this before the root of the folder
Example: C:/Users/23037923/OneDrive – University of the Arts London/Nuke/Week_13_CG Nuke/Images/LegoCar_No_PPlane_V3.exr
to [python {nuke.script_directory()}]/Images/LegoCar_No_PPlane_V3.exr
-> This will ensure the link of directory even when you move the folder around
Tip: you can Copy/Paste a node or a setup as python code to share
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