Adobe Photoshop CS4 Manual de usuario descargar pdf (Pagina 591)

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101

584

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” on page 584.

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

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.

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