3D modelling Calibration Square

I created this model to help with taking pictures for designing custom parts for curved or oddly shaped objects. When I used to take pictures and model from them, I noticed lens distortion, especially with phone cameras. To address this, I designed a simple calibration square.Here’s how to use it:Place your object in the center of the square.Scale the square up or down as needed.Use perspective warp in Photoshop (or another tool) to adjust the image to fit the corners of the square.or even just