From BlenderWiki

Weekly Report #08 - Silhouette Operator

The Silhouette Operator slowly takes shape. The basic geometry is almost finished. A couple of tedious bugs are off the table and development can accelerate again! Here a small overview what i did this week:

Bugs:

I started off with bug fixing to make everything a little more stable. These are the bugs i got rid of:

• Jagged lines due to interpolation with negative values
• Division by 0 bug which caused parts to disappear
• T-intersection edge offsets caused holes
• T-intersection orientation was out of order
• Crashing on small strokes
• Invalid z-orientation

I am sure there is still a lot of bugs i don’t even know of yet but currently i can only identify one which I haven’t fixed yet. (I don’t know its cause or conditions)

Normals:

The normals are now correctly calculated regardless of the orientation the stroke is drawn from.

Tools:

I added the settings for the operator to the tool panel in sculpting mode. Now smoothness, depth and resolution can be set. Since setting defaults are not loaded when opening older files it currently only works when working with factory settings or setting correct values manually.

Undo/Redo:

The last few days of the week i spend on implementing a custom undo node for the Silhouette operator. Operators within sculpt mode are handled different and since the silhouette doesn’t really fit into the mesh/deform workflow i needed to write a custom one. Undo and Redo now work but aren’t optimised yet and will need to change when features like connecting to existing geometry and similar are added.

Whats next:

The first thing i will work on next week will be: Completing the shape and mirroring it, so a closed volume is generated. Maybe after that i can look into connecting to existing topology.