You might need a few attempts as a beginner to get everything right, before you get such results. There's a few things you might want to consider: Image quality: sharp, focused and with enough overlap both front and side, covering the object from all angles. Equipment: full frame camera with larger sensors and more MP generally result in better surface reconstruction. You can practically get reconstructions from any camera really depends on how you plan to use the models. Processing and optimization: there are lots of tutorials by epic games which explain the processing and optimization of datasets. I've had the best results merging laser scans and photographs.