Camera Movement to Prompt

Camera Movement to Prompt

A ComfyUI custom node that computes the relative camera movement between two 4×4 extrinsics matrices and injects it into a prompt template as JSON.

Inputs

| Input | Type | Description | |---|---|---| | original_extrinsics | EXTRINSICS | 4×4 camera matrix from the original view | | new_extrinsics | EXTRINSICS | 4×4 camera matrix from the new view | | prompt_template | STRING | Text with {camera_movement} placeholder | | decimal_places | INT | Rounding precision (0–6, default 2) |

Outputs

| Output | Type | Description | |---|---|---| | prompt | STRING | Template with {camera_movement} replaced by JSON | | camera_json | STRING | The raw JSON camera delta |

Example output JSON

{"x": 0.15, "y": -0.02, "z": 0.31, "pitch": 5.2, "yaw": -12.0, "roll": 0.0}

Installation

Clone into your ComfyUI custom_nodes directory:

cd ComfyUI/custom_nodes
git clone https://github.com/Lil0k/comfyui_camera_movement_to_prompt.git