Quad Transform
Quad Transform
Use Quad Transform to project an image into an arbitrary four-corner shape. It is useful for perspective correction and decal placement tasks.
Availability
This node requires Pro.
Common uses
- Apply distortions after establishing a stable base pattern.
- Use mild distortion early and stronger effects near the end for control.
Input ports
-
input -
Typically expects an image input plus optional control inputs.
Output ports
-
out -
Outputs transformed image data in the same graph branch.
Parameters
| Parameter | Type | Default | Range or values |
|---|---|---|---|
| P00 | vec2 | 0,0 | - |
| P01 | vec2 | 0,1 | - |
| P10 | vec2 | 1,0 | - |
| P11 | vec2 | 1,1 | - |
| Culling | enum | frontOnly | frontOnly, backOnly, frontOverBack, backOverFront |
| Background | float | 0 | 0 to 1 |
| Sampling | enum | bilinear | bilinear, nearest |
Behavior
- Distortion nodes remap sampling coordinates rather than direct color values.
- Input continuity strongly influences final distortion quality.
Common mistakes
- Aggressive warps can stretch artifacts and expose seams.
- Coordinate-heavy chains can become hard to debug without checkpoints.