You can control the transparency for selected objects, or for all objects on a layer.
You can also specify a default transparency value for new hatch and fill objects.

Transparency effects can enhance drawings. For example, images of people placed in
a building or operating machinery can be made transparent to de-emphasize them. Transparency
can also be used to reduce the visibility of objects and layers that are intended
for reference only.

In AutoCAD-based products that support 3D, solid and surface models have an X-ray
visual style that applies a specified opacity level. The effects of opacity and transparency combine together.

Learning AutoCad

u can control the transparency for selected objects, or for all objects on a layer. You can also specify a default transparency value for new hatch and fill objects …transparency property for objects. … the Home tab > Layers panel< Layer drop-down list, choose the new layer to make it current.transparency of an object is determined by its layer color and … Style Override makes the object opaque or transparent, regardless of face or layer …objects or groups, and choose Make Opacity Mask from the Transparency panel menu. The topmost selected object or group is used as the …make an object completely transparent.9 Feb 2009making the transition from LW to Maya, and I've searched the manual and … from the transparency of the materials that make up the object.Make Objects Transparent in Flash. Flash is capable of creating transparent objects which can be useful for a variety of things. In this FREE tutorial I …making an entire picture transparent, making only one color transparent is possible only in an object that's inserted as a picture, not inside a shape.