Using fSpy for 3ds Max is a game-changer for anyone doing "photo-matching" or "set extensions." It removes the guesswork and provides a rock-solid foundation for your 3D assets to live within a 2D plate.
fSpy is a standalone camera matching software that calculates the position, orientation, and focal length of a camera based on vanishing points in a still image.
Several talented developers have created MaxScript tools (available on sites like ScriptSpot or GitHub) that allow you to import the .fspy file directly. Run the script. Select your .fspy file. fspy 3ds max top
Pro Tip: Use long edges for better accuracy. Short lines lead to "wobbly" camera solves.
If you don't want to use a script, you can copy the data from the fSpy panel: Using fSpy for 3ds Max is a game-changer
Choose your vanishing point axes (usually X and Z or Y and Z ).
If you know the camera used to take the photo (e.g., a Canon 5D Mark IV), enter the sensor width in fSpy. This makes the focal length calculation much more reliable for real-world lens matching. 2. Use a "Reference Box" Run the script
Drag the 3D cursor to where you want the (0,0,0) coordinate to be in your Max scene (usually a floor corner). Save the Project: Save as a .fspy file. Phase 2: Importing to 3ds Max There are two primary ways to bring this data into 3ds Max: Option A: The fSpy Importer Script (Recommended)
Align the segment markers with clear parallel lines in the photo.
To get fSpy data into 3ds Max, you need a bridge. Since there isn't a native "Import fSpy" button in Max yet, we use a simple script or the manual data entry method. Phase 1: Solving in fSpy