The Surface Wizard is used to optimise the mesh combining all the information available (masks, point cloud) to create a smooth surface consistent with the data.
Note: Optimisation will discard any surface texture generated, but it will keep in place any clipping you have performed, so it is better to clip away the stand beforehand.
If you have a smooth organically shaped object, choose "smooth approximation" to generate a smoothed mesh with few corners. Otherwise, either leave the default "reasonable accuracy" set or choose "exact fit" if you are confident that your masks and points are very accurate and you want the surface to exactly fit all the details.
If you have edited the masks to remove unwanted regions in just a few of the images (e.g. the stand or a subpart of the object) you will need to make sure the "Clip masks to current geometry" option is selected. This will prevent the non-edited masks affecting the geometry (and growing back the removed region).
If you have a lot of images in your project or the silhouettes are particularly complex, optimisation can be slow, so it is a good idea to limit the number of images used at each optimisation step by setting the "Number of masks used" parameter.
The "Optimise camera orientations" option will allow the camera parameters to be refined during the optimisation. This can correct for small errors in camera estimation e.g. if the object wobbled or moved slightly relative to the calibration target(s) during the image capture process.
Click the button to start the optimisation process.
During this process, you can see the current geometry and look around the model by rotating it in the View Model Window as usual. At this stage, the mesh will be displayed with the maximum number of triangles, and will only be reduced to your chosen decimation level when optimisation finishes.
Use the button to halt the optimisation while you look at the results and then hit the button to resume optimisation.
Use the button to hide the wizard dialog allowing you to see more of the model. The progress will be displayed in the status bar.
If you want to change the parameters, click the button at any point to return to the previous step and edit them (for instance if the optimisation is proceeding very slowly you could reduce the number of images being used).
You can either leave the optimisation to finish completely, or interrupt it when you are happy with the current surface. Click the Surface Wizard keeping the current mesh, or click the button to go on to fit a button to leave the subdivision surface to the mesh (as described in the Improving the geometry with subdivision surfaces tutorial).
During Optimisation at high quality settings, several (smoother) partial results will be made available on the "undo" stack so you can unwind the process in several steps using the button and button to go forward.
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