Today we are focusing on two very important AutoCAD based Setvariables. These are CMFADECOLOR & CMFADEOPACITY. In short, they are used to control the display of attached “Coordination Models” within an AutoCAD (Map 3D, Civil 3D…) environment. By tweaking either of these values you are able to more quickly differentiate between the drawing geometry and attached coordination models.
By Default, the following values are used…
Which produces the image below:
As you can see, the coordination model is very dark and moderately transparent. (You will have no trouble mistaking this with any of your other drawing geometry. :) ) Having said this, because it is so dark, you may want to make some adjustments to improve the coordination model visibility.
Here is what you need to know….
CMFADECOLOR controls the amount of black blended on all attached coordination models. Valid values are from 0 to 90.
0 No black is blended with the coordination models.
>0 Controls the percent of blending up to 90 percent.
CMFADEOPACITY controls the amount of dimming through transparency for all attached coordination models. Valid values are from 0 to 90.
0 Coordination models are not dimmed.
>0 Controls the percent of dimming up to 90 percent.
For example, setting both values to 0 produces the image below:
In this instance it would be difficult to distinguish between your drawing objects and this coordination model. (Which may be your intention based on how you intend to use the coordination model)
Feel free to adjust the values as necessary to reach a result that meets your needs.
Note: These values are maintained in your system registry. In other words, changing the values will impact every DWG you work on.