Adobe ACROBAT 3D Manual page 555

3D capture settings
You can change capture settings when capturing a 3D model from a CAD application or
when editing application capture settings in the Preferences dialog box.
General setting
The General panel lets you adjust the geometry settings of captured 3D models.
Discard Stray Points And Lines
Captured shapes may have orphaned lines and vertices that could not be meaningfully
incorporated into the 3D model. This option deletes them from the captured model.
Discard Textures
Removes all textures from the materials in the captured model.
Group Geometry By Material
Combines mesh pieces that have the same material. A material is a combination of
rendering properties, such as color, texture, and transparency. For example, blue
transparent objects can be grouped with blue opaque objects.
Discard Surface Normals
Recomputes the normal data based on the angle between adjacent faces. Surface normals
are used for constructing smooth surfaces. Selecting this option reduces the file size and
may change the appearance of the 3D model.
Toggle Y And Z Axis
Depending on the 3D model application, the native coordinate system may have a
different representation of "up" than Acrobat. This option allows conversion between y-up
and z-up coordinate frames.
OpenGL settings
The OpenGL panel lets you adjust the settings for 3D CAD applications. OpenGL is a
cross-platform language for displaying 3D models. Applications can use OpenGL in
different ways. Acrobat recognizes how most CAD applications use OpenGL, but for
unknown applications, the OpenGL panel lets you change settings to improve the capture.
Frame Buffer Mode
Indicates which OpenGL event--Swap Buffer Event, Clear Event, or Flush Event--is used
in the capture. If your capture yields undesired results, try different buffer modes.
View Transform Mode
If the measurements in Acrobat are incorrect or if the top, left, and front views in Acrobat
does not matches these views in the CAD application, try specifying a different
transformation (First Matrix, Last Matrix, or No Matrix) to represent the camera transform.
Capture Units
Specifies the units of measure for the Distance Tool to measure the 3D model.