Here it is, the workflow of my last turntable scan.
On the attached photo you can see the setup. Its state is after camera and projector calibration. To avoid scanning of the wallpaper behind the object I have placed a black cloth on the wall.
Enable texturing (if it is wished) by a hook on DAVID's 'Hardware Setup' side.
Before removing the calibration corner after camera- and projector calibration simply make a scan of the calibration corner walls and see if the SL settings are OK.
Then remove the corner and put the turntable with the object at the same place.
If you let the table later on rotate clockwise (from bird view), you have to set the used angle increment in Shape Fusion as a positive value for the 'Rotation Angle'. Otherwise you have to set the value as a negative one.
If DAVID should do automatic capturing of the texture after each scan then set a hook for 'Auto. grab texture'.
Do the first object scan and save it with its angle position in the file name (only a tip).
Let the table turn for e.g. 45°. Do the second scan, save it and so on.
After all 8 scans are made and saved, goto Shape Fusion, load each scan again and clean it, means delete all unwanted parts by the mouse. For this work it's better if you switch the texture off. Do this by pressing the 't' key. (Another push on the same key will switch it on again). You can find the "cleaning tool" in Shape Fusion in the top line, designation 'Selection'. Click on the small triangle below 'Selection' and choose one of the three possibility tools. A tip: Start with the rectangle selection, but play with all three. Then red enlighten the button just left beside. Mark with the left mouse button that part of the scan which shall be deleted. When you let the LMB free, this part will be red enlightened (Drag and drop). Delete it then by clicking on the red X
(right beside). The Polygon Selection works a bit different: Draw an arbitrary formed polygon by clicking at each vertex with the LMB. Then, to confirm it, press the RMB. The chosen part becomes red. Delete it with the X
. At the end you can disable the tool by clicking again on the symbol (not on the X
). After each scan is cleaned, save it again (best by a a bit different file name).
Now we have do to a simple job, means to watch how DAVID does its „Alignment around the y-axis“.
Load the first (0° position) scan. Then load the next, the 45° scan. Choose 'Rotation around y-axis' and set the 'Rotation Angle' = 45°. You don't have to change this value during the following procedure!! Don't set a hook for 'Use Texture' (for alignment).
Click on 'Align Scans'. Two windows pop up: 'Scan A' and 'Scan B'. Fill the second (45°) scan in the 'Scan A' window and the 0° scan in the 'Scan B' window. This you can do by first clicking on the empty window and then click on the file name at top right (List of Scans). When the second window is filled with the file name, DAVID immediately align both scans. Is the result OK?
If you had chosen the 'wrong' file name, you can click on the undo button (right beside the 'Align Scans' button).
Now load scan number 3 (90°).
Click on 'Align Scans'. Fill in the field 'Scan A' the name of this third scan. Fill in field 'Scan B' the name of the second (45°) scan. Result OK again?
Continue in this way until all 8 scans are aligned. Never change the set angle (45°). Then, for a final alignment, choose 'Global Fine Registration'. Press 'Align Scans' and the 8 scans will be „shaken“ to their best position to each other.
Now you can start the fusion. When it appears, switch the texture on again. Satisfied with the result?