When Black/White Switching is selected, a curve or an object wire whose assigned color is pure black or pure white will display in the opposite color when necessary to remain visible against the viewport background.
Why use Black / White Switching?
Users working in CAD applications are expect white objects to appear black on a white background, and conversely for black objects to appear white on a black background. This switch happens automatically in many CAD applications.
Automatic color display switching has been requested frequently by Rhino users. In previous Rhino versions, setting a layer or object to white against a white display resulted in the curves blending into the white background, and the same for black objects against a black background.
How to Enable Black/White Switching:
Go to: Tools → Options → Appearance → Colors. In the resulting Object Display section, enable Black/White Switching.
More Details:
Color switching occurs based on the brightness of the viewport background or layout paper color.
White curves and wires switch to black when the background brightness exceeds 70%.
Black curves and wires switch to white when the background brightness falls below 30%.
Brightness is not a configuration option per se. Rather, it is derived from Viewport Color options found in Tools → Options → Appearance → Colors → Viewport colors.
Requests
RH-0000 switch the text mask color, when Black/White switching is enabled. (update soon)
The option does not work properly with most preview commands such as Tween Curve, Rebuild Curve, Linear Array, Rectangular Array, and BlendCrv , and Copy. These are the commands I tested; there may be others as well.
What about an additional option for rendering everything inside the viewport into their negative colours? Some graphics programs allow that.
It’s also a popular method to generate flashing effects in many 2d and 3d video games.
… As a result, providing only black and white options is limiting. Consider how users use different RGB/CMYK background colors, default colors assigned to a curve layer, and many other similar situations. Switching between B/W(or other matches) doesn’t help much because the colors aren’t stylistically compatible. If the same option produces a LIST = [random color matches] each time a user hits the button, that would work.
Hi @Federico_Scarlatti,
We moved Black/White display switch to it’s own Forum post above.
Thank you for posting here. This thread is now closed
For Black/White Switching, you should also consider that dimensions and text that use the mask are governed by the mask’s color. For example, if I’m in dark mode and I apply a white mask, and the dimension is black, I’ll see it as white on white. That is, I won’t see it.
