Setting "Line Width" below 1?


I can increase line width as I want, but if I try to set it below 1, it does not decrease? Is there anyway to force it to decrease.

Kind regards

Nope, that is not supported.

Out of curiosity, is there a reason one cannot scale it “indefinitely”? Perhaps the rendering pipe line?

Kind regards

My guess is that OpenGL doesn’t support line widths less than 1 pixel. The docs say:

GL_INVALID_VALUE is generated if width is less than or equal to 0.

It also says, without antialiasing:

If the rounding results in the value 0, it is as if the line width were 1.

1 Like

To go smaller than width 1, we would need ParaView to enable multisample anti-aliasing, which we don’t do I think for performance reasons.

1 Like