Improving Markup Quality in 2D Views

[lassoan (Andras Lasso)]

You can enable interpolation, for example MSAA or FXAA.

MSAA interpolation can be enabled in application settings / Views / Multi-sampling (MSAA) → 4x (or higher for smoother results with higher computation cost).

FXAA can be enabled with a short Python code snippet. See example in the image below: left with FXAA, right without interpolation.

See in this topic how to enable FXAA and some more information on interpolation:

Antialiasing in in slice (MPR) views

Multi-sampling is the true antialiasing method, but that would mess with the Z buffer, and therefore with hardware-accelerated picking that is used for markup nodes label display and control point manipulation, compositing volume rendering and surface rendering, etc. Also as @pieper mentioned there seem to be some some issues with it in recent VTK and Qt versions (for example, I don’t think the MSAA setting has any effect right now on Windows). Alternatively, you can do screen-space antialiasin…