Trapezoid Transform
Trapezoid Transform
Use Trapezoid Transform to taper one side and simulate perspective squeeze. It is helpful for signage, panel, and projection-style adjustments.
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 |
|---|---|---|---|
| Top Stretch | float | 1 | 0 to 1 |
| Bottom Stretch | float | 1 | 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.