4 3 Setting 3D Preferences Enable OpenGL Drawing Click the Edit Win or Photoshop Mac menu, and then point to Preferences.. To show or hide a 3D screen element, click the View menu, poin
Trang 1Working with the 3D preferences (New!) gives you control over how the Photoshop 3D engine works with 3D objects Working with 3D mod-els can take its toll on your computer’s hardware, so you need to use software—either OpenGL or Adobe Ray Tracer (ART)—and/or hardware (a video card with memory, known as VRAM) to help process the ren-dering (display) of 3D models in Photoshop In 3D Preferences, you set VRAM usage amounts and which rendering 3D engine to use, as well as other options for display elements and fine-tune the 3D model If OpenGL (GL stands for Graphics Library) options are not available, you need to select the Enable OpenGL Drawing check box in Performance Preferences and/or upgrade your video hardware
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Setting 3D Preferences
Enable OpenGL Drawing
Click the Edit (Win) or Photoshop
(Mac) menu, and then point to
Preferences.
Click Performance.
If you have a video card installed
with a GPU (Graphics Processing
Unit), the name of your video card
appears under Detected Video
Card
Select the Enable OpenGL
Drawing check box to use the
enhanced speed and smoothness
of graphic/3D rendering and
navigation
Click OK.
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Installed video card name
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Trang 2Set 3D Options
Click the Edit (Win) or Photoshop
(Mac) menu, and then point to
Preferences.
Click 3D ( New !)
Select options from the following:
◆ Available VRAM for 3D Specify
the amount of video memory
(VRAM) you want Photoshop to
use for 3D operations
◆ Interactive Rendering For
interacting with 3D objects,
select the OpenGL option to use
hardware-acceleration
(requires a video card), or the
Ray Tracer option to use Adobe
Ray Tracer (ART), and then
select the related options
◆ 3D Overlays Specify colors for
guides for highlighting 3D
scene components
◆ Ground Plane Specify a plane
side, grid spacing size, and
color for the ground plane The
ground plane is a grid that
reflects the position of the
ground relative to the 3D model
◆ Ray Tracer Specify a quality
amount for ray traced
rendering
◆ 3D File Loading Specify the
initial limit for active lights, and
set the maximum number of
diffuse textures to generate
when they are absent
Click OK.
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Showing and Hiding 3D Elements
When you’re working with 3D objects, you can show or hide screen elements—such as the 3D axis, ground plane (New!), lights
(New!), or selection (New!)—to make it easier to create the 3D artwork you want To show or hide a 3D screen element, click the View menu, point to Show, and then select a 3D option: 3D Axis, 3D Ground Plane, 3D Lights, or 3D Selection
For Your Information 2
Trang 3Photoshop Extended provides vast improvements to the way you work with 3D files There is a 3D menu with an assortment of commands and there are two slots on the toolbox dedicated to 3D, for a total of 10 easy-to-reach tools, as well as what’s on the 3D panel Artists can paint directly on 3D objects without having to render them in another program
Photoshop includes support for three-dimensional files (U3D, 3DS, OBJ, KMZ, and DAE file formats) created by programs like Adobe Acrobat 3D Version 8, 3D Studio Max, Alias, Maya, and Google Earth You can start from a text layer, a selection, or a layer mask in a document to convert it
to a 3D model or open an existing 3D file When you open a 3D file, Photoshop places the 3D model on a separate 3D layer You can add mul-tiple 3D layers to an image If your Photoshop document contains one or more 2D layers (typical images), you can combine any one of them with a 3D layer, or convert a 3D layer to a 2D layer You can create a 3D model
by using the 3D panel (New!) or commands on the 3D menu
Creating 3D Models
Create a 3D Model from a 2D
Image with the 3D Panel
Open a 2D image
Select the layer or object on the
canvas you want to convert into a
3D model
Select the 3D panel.
Click the Source list arrow, and
then select a source option:
Selected Layer(s), Work Path, or
Current Selection.
Select from the available options:
◆ 3D Postcard Creates a plane
with 3D properties
◆ 3D Shape From Preset Creates
a 3D shape from a preset, such
as cone, cube, donut, or hat
◆ 3D Repoussé Object Creates a
3D model using repoussé
◆ 3D Mesh From Grayscale.
Converts a grayscale image
into a 3D model depth map
using mesh options
◆ 3D Volume Creates a 3D
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Trang 4Insert a 3D Model from a File
Open a document
Click the 3D menu, and then click
New Layer from 3D File.
◆ You can also select File from
the Source list arrow in the 3D
panel, and then click Create.
Navigate to the location where the
3D file is located, and then select
the 3D file
Click Open.
A new 3D layer appears in the
document
To add a 3D layer to an image,
drag the 3D layer from one layer in
the Layers panel to another layer
Select the 3D layer in the new
location
Use the 3D tools on the toolbox or
on the 3D panel to view, position,
or scale the 3D model
◆ Change 3D position and scale
Use the following 3D tools: 3D
Rotate Tool, 3D Roll Tool, 3D
Pan Tool, 3D Slide Tool, or 3D
Scale Tool.
◆ Change 3D view Use the
following 3D tools: 3D Orbit
Tool, 3D Roll View Tool, 3D Pan
View Tool, 3D Walk View Tool,
and 3D Zoom Tool.
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3D model
Did You Know?
You can convert a 3D layer to a 2D
layer Select the 3D layer in the Layers
panel, click the 3D menu, and then
click Rasterize
Trang 5Repoussé is an ancient metalworking technique for embossing artwork
on the surface of metals, such as gold, silver, copper, tin, and bronze In Photoshop, you can use Adobe Repoussé (New!) to convert 2D art-work, including rasterized text, into 3D models With the Create New 3D Object section on the 3D panel, you can start from a text layer, a selec-tion, or a layer mask to convert it to a 3D model After you create the 3D model, you can use the Repousse dialog box to manipulate object prop-erties, such as depth, scale, bend, shear, or twist In addition, you can inflate the front or back of the object like a balloon as well as apply a custom bevel
Creating 3D Models
Using Repoussé
Create a 3D Model from a 2D
Image with Repoussé
Open a 2D image
Select the layer or object on the
canvas you want to convert into a
repoussé 3D object
Select the 3D panel.
Click the Source list arrow, and
then select a source option:
Selected Layer(s), Work Path, or
Current Selection.
Click the 3D Repoussé Object
option
Click the Create button.
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Did You Know?
You can export a 3D layer to a 3D file.
The supported 3D formats are Collada
DAE, Wavefront/OBJ, U3D, and Google
Earth Select the 3D layer in the Layers
panel, click the 3D menu, click Export
3D Layer, select a 3D file format, and
then click OK
You can save a 3D file If you want to
preserve 3D model position, lighting,
render mode, and cross sections, save
files with 3D layers in PSD, PSB, TIFF,
or PDF using the Save As command on
Trang 6Specify any of the following 3D
options:
◆ Presets Choose from the
available shape presets, and
save your own presets
◆ Materials Select a material for
the different areas of the 3D
model
◆ Extrude Select individual
attributes for the 3D object,
including depth, scale, twist,
and texture You can also set
shear and bend options to
transform the 3D model
◆ Inflate Specify options to
inflate the 3D model like a
balloon
◆ Bevel Specify options to apply
a bevel, including slides, height,
width, and contour
◆ Scene Settings Specify scene
settings for lights, view,
rendering, and mesh quality
◆ Internal Constrains Use the
buttons and other options to
position, rotate, roll, pan, slide,
and scale the 3D model or
adjust a selection
Click OK.
Use the 3D tools on the toolbox or
on the 3D panel or use the Axis
Widget to view, position, or scale
the 3D model
◆ Axis Widget The three colored
areas represent the three axes
(x, y, z) of the object
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3D object
Did You Know?
You can edit repoussé settings Select
the 3D layer in the Layers panel, click
the 3D menu, point to Repoussé, and
then click Edit In Repoussé (New !)
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