What is Perspective Plotter?

Match a camera to an image with Perspective Plotter, an interactive Blender add-on for modelers, architects and artists. This is useful for creating 3D models from 2D sketches, matching a 3D scene to a 2D photo, or animating a camera dynamically. 

Defining perspective lines in the viewport sets a camera’s focal length, location and position in real time. The add-on will also work with more than one camera in a scene.

Additional tools allow you to match a camera’s background image proportions, quickly move vertices or objects along the view line, and automatically flatten the horizon.

The add-on is inspired by the freely available fSpy application, with the added benefit of being directly inside Blender.  

This add-on assumes understanding of 1, 2 and 3 point perspectives as well as a working knowledge of Blender.

Features

• Dynamically match the camera in real time using perspective guides.
• Choose from 1, 2 or 3 point perspective modes.
• Determine scale of the scene using a measuring guide.
• Animate the camera using keyframe buttons.
• Match background image proportions.
• Flatten horizon line automatically.
• Customize colors and opacity of guide lines.
• Freeze guides in place to prevent accidental changed.
• Use the bundled Move Along View tool to help model 3D meshes from 2D sketches.
• Change axes of vanishing points.
• Change camera midpoints and camera target location.
• Read the documentation at https://perspective-plotter.readthedocs.io/
  

Inspired by fSpy

fSpy is a free standalone camera matching application that can be used to match and import camera settings into other 3D tools including Blender.

Checkout fSpy and consider donating to the author.