Dynamic Topology (aka Dyntopo) can be toggled with the checkbox. With dynamic topology active, most brushes will subdivide the mesh during the stroke.
For a general explanation of dynamic topology, visit the Introduction.
- Detail Size/Percentage, Resolution R
Each Detail Type’s detail is set here. Depending on the Detail Type being used this property will rather show as a pixel count (px), or percentage.
- Sample Detail Size (pipette icon)
When using Constant Detail, it is possible to sample the detail value of a certain mesh area by clicking the pipette icon next to the detail setting and then clicking on the area.
- Refine Method
Setting the option will determine which of the methods will be used when altering the topology.
- Subdivide Edges:
Just like the Subdivide tool, this method will only subdivide topology to match the detail given.
- Collapse Edges:
When topology is too dense, and is smaller than the detail given, edges will be collapsed to fit the detail size appropriately.
- Subdivide Collapse:
This method combines the two methods, subdividing edges smaller than the detail size, and collapsing topology.
Dyntopo uses three different detail methods to create dynamic detail to an object.
- Relative Detail:
This method uses a detail size based on the number of pixels, and in turn will create topology in that size. Zoom out big details, zoom in small fine details.
- Constant Detail:
To keep detail uniform across the entire object, Constant Detail can be used. The Detail is based on the percentage of a single unit.
- Brush Detail:
Giving more control over the topology, with this method you can create topology based on the brush size. You can increase and lower topology by resizing the brush itself. The detail size is based the size of the brush itself, where full detail will create topology the size of the brush radius itself.
- Detail Flood Fill Ctrl-R
When using Constant or Manual Detailing, this option is made available, allowing you to fill the entire object with a uniform detail, based on the detail size.