View cross sections, Apply different render modes to each cross section, 3d mesh settings (photoshop extended) – Adobe Photoshop CS4 User Manual
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USING PHOTOSHOP CS4
3D and technical imaging
Last updated 1/10/2010
Cross Section
Select to create a planar cross section that can intersect the model at an angle you choose. Allows you to
slice through a model and view interior content. See “
View cross sections
You can view a cross section of a 3D model by intersecting it with an invisible plane that slices through the model at
any angle and displays content only on one side of the plane.
1
Select Cross Section in the bottom section of the Scenes tab.
2
Choose options for alignment, position, and orientation:
Plane
Select to display the intersecting plane that creates the cross section. You can choose plane color and opacity.
Intersection
Select to highlight the areas of the model that the cross section plane intersects. Click the color swatch
to select the highlight color.
Flip Cross Section
Changes the displayed area of the model to the opposite side of the intersecting plane.
Offset and Tilt
Use Offset to shift the plane along its axis, without changing its tilt. At a default offset of 0, the plane
intersects the 3D model at its midpoint. At maximum positive or negative offsets, the plane moves beyond any
intersection with the model. Use Tilt settings to rotate the plane up to 360
0
in either of its possible tilt directions.
For a particular axis, the tilt settings rotate the plane along the other two axes. For example, a plane aligned to the
y-axis can be rotated around the x-axis (Tilt 1) or the z-axis (Tilt 2).
Alignment
Select an axis (x, y, or z) for the intersecting plane. The plane is perpendicular to the selected axis.
Apply different render modes to each cross section
You can vary the render settings for each side of a cross section to combine different views of the same 3D model, such
as Wireframe with Solid.
1
Select Cross Section, and choose options in the bottom section of the Scenes tab. Your current render settings are
applied to the visible cross section.
2
Click Render Settings, or choose 3D > Render Settings.
3
At the top of the dialog box, click the currently unselected Cross Section button
.
By default all render settings are turned off for the alternate cross section, making it appear invisible.
4
Choose render options for the alternate cross section, and click OK.
3D Mesh settings (Photoshop Extended)
Each mesh in the 3D model appears on a separate line in the top section of the 3D panel. Select a mesh to access mesh
settings and information in the lower section of the 3D panel.
Information includes the number of materials and textures applied to the mesh, as well as the number of vertices and
faces it contains. You can also set mesh display options:
Catch Shadows
In Ray Traced render mode, controls whether the selected mesh displays shadows on its surface from
other meshes.
Cast Shadows
In Ray Traced render mode, controls whether the selected mesh casts shadows on other mesh surfaces.
Note: Lights must be set to create shadows.
Invisible
Hides the mesh, but displays any shadows on its surface.