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Chapter 10 Chapter 10 Presentation Transcript

  • Chapter 10 Creating 3D Objects
  • Objectives • Extrude objects • Revolve objects • Manipulate surface shading and lighting • Map artwork to 3D objects • Work with a perspective grid
  • Extrude Objects • Extrude & Bevel effects apply three- dimensional effects to two-dimensional objects. – Two-dimensional objects have two axes: X for width and Y for height – Three-dimensional objects have Z axis added
  • Extrude Objects • Determine the degree of extrusion by changing the Extrude Depth value in 3D Extrude & Bevel Options dialog box. • Use the Caps buttons in 3D Extrude & Bevel Options dialog box to make objects appear solid or hollow.
  • Extrude Objects Objects before and after being extruded
  • Extrude Objects Rotating 3D objects • The 3D Extrude & Bevel Options dialog box offers controls for rotating extruded objects. • Rotate manually by dragging rotation cube.
  • Extrude Objects • When you rotate the cube, values on the X, Y, and Z axes update to reflect the changes made. • Enter values in these boxes to rotate object at specific angles. • Once you extrude an object, you can view any surface – front, back, left, or right.
  • Extrude Objects Rotation cube X axis text box Y axis text box Z axis text box
  • Extrude Objects Simple compound path Complex compound path Simple compound path, extruded Complex compound path, extruded
  • Extrude Objects • The Bevel menu offers ten predefined bevel shapes you can apply to the edge of an extruded object. • You control the width of a bevel edge with the Height slider.
  • Extrude Objects Choose from 10 bevel shapes
  • Extrude Objects Cove RollingJaggy Classic Complex 2 Rounded Bevel shapes applied to edges
  • Extrude Objects When Illustrator has difficulty rendering an object with a beveled edge, a warning appears in the 3D Extrude & Bevel Options dialog box.
  • Extrude Objects • Sometimes there is no solution, but your best bet is to reduce the bevel width. • Decide how to apply bevel using the Bevel Extent In and Bevel Extent Out buttons in 3D Extrude & Bevel Options dialog box.
  • Extrude Objects Bevel Extent Out button Bevel Extent In button Warning that beveled edge may not have been rendered well
  • Extrude Objects Extruded text
  • Revolve Objects Revolving an object “sweeps” a path in a circular direction around the Y axis. – Surface shading is applied automatically – By default, object revolved around the vertical axis that represents leftmost point – The 3D Revolve Options dialog box offers an option to revolve object from right edge
  • Revolve Objects Revolving an object around its left edge Revolving an object around its right edge
  • Revolve Objects • A revolution occurs around the vertical axis. – Starting path will depict half of the object you want to revolve • Once revolved, an object can be rotated by using the 3D Revolve Options dialog box. – It presents all surfaces of the graphic
  • Revolve Objects Options for revolving objects
  • Revolve Objects Identifying the path used to produce the revolved 3D graphic
  • Revolve Objects A revolved graphic rotated four ways
  • Revolve Objects • Apply the Revolve effect to multiple paths simultaneously. – Can be open or closed paths • When Revolve effect is applied to multiple paths, each path is revolved around its own axis.
  • Revolve Objects Revolving grouped objects • When grouped, multiple paths are revolved around a single axis. • When multiple paths are grouped and revolved, they will also rotate together.
  • Revolve Objects Two grouped paths revolved around a single y-axis. Object before it is revolved. Object after it is revolved.
  • Revolve Objects Four grouped paths after being revolved and rotated
  • Revolve Objects Increasing the Offset value in the 3D Revolve Options dialog box increases how far from the Y axis the object is revolved. Enter offset value here
  • Revolve Objects Object revolved with a 90- point offset from its Y-axis Rotated object shows 90-point offset more clearly
  • Manipulate Surface Shading and Lighting When you apply the Extrude & Bevel effect or Revolve effect, surface shading and lighting is applied automatically but can be manipulated.
  • • When you revolve an object, four surface shadings are available: – Wireframe – No Shading – Diffuse Shading – Plastic Shading Manipulate Surface Shading and Lighting
  • Wireframe No Shading Diffuse Shading Plastic Shading Manipulate Surface Shading and Lighting
  • When you choose Diffuse Shading or Plastic Shading, a number of lighting controls are available. • Lighting Intensity controls strength of light on object. • Ambient Light determines how object is lit globally. • Highlight Intensity controls how intense highlight appears. • Highlight Size controls how large highlights appear. • Blend Steps controls how smoothly shading appears. Manipulate Surface Shading and Lighting
  • When Diffuse Shading or Plastic Shading is chosen, you can drag light source to a new location to light an object from a different angle. Manipulate Surface Shading and Lighting
  • • Add additional light sources by clicking New Light button. • Apply different light intensity values to individual light sources. • Delete a light source by selecting it, then clicking Delete Light button. • Move selected light to back button moves light source to back. Manipulate Surface Shading and Lighting
  • 20% Ambient light60% Ambient light Manipulate Surface Shading and Lighting
  • Default light source Viewing default light source settings Default light source settings Manipulate Surface Shading and Lighting
  • Drag to relocate light source Manipulate Surface Shading and Lighting
  • Map Artwork to 3D Objects You can map a 2-dimensional object to a 3- dimensional object. For example, a label is a 2- dimensional object that can be wrapped around a 3- dimensional can.
  • Map Artwork to 3D Objects • First convert 2D object to symbol. • Select a 3D object. • Click Map Art in the 3D Revolve Options dialog box.
  • Map Artwork to 3D Objects Objects to be used for mapping
  • Map Artwork to 3D Objects • In the Map Art dialog box choose which surface you want to map the art on. • When you click a surface button, active surface is shown in red wireframe on 3D object.
  • Map Artwork to 3D Objects Surface buttons Interior of curved lines represents visible surface (1 of 4)
  • Map Artwork to 3D Objects • Grid pattern represents the complete surface of the object. • Includes the entire surface around the object that you may not see.
  • Map Artwork to 3D Objects • Once surface chosen, choose symbol to be mapped by clicking the Symbol list arrow. – Symbol artwork is centered on grid. – Drag artwork so it completely covers curved lines – Once artwork is mapped, it reshapes itself to the three-dimensional object
  • Map Artwork to 3D Objects Wrapping Paper symbol selected
  • Map Artwork to 3D objects Symbol artwork is mapped to 3-D object.
  • Work with a Perspective Grid • Use the Perspective Grid feature to draw and create objects in perspective. • Three types of grids: – 1-point perspective – 2-point perspective – 3-point perspective
  • Work with a Perspective Grid 1-point perspective grid 2-point perspective grid 3-point perspective grid
  • Work with a Perspective Grid • Point refers to vanishing point. • 2-point perspective is the default. • Click the Perspective Grid tool on the Tools panel to access the grid. • Or select to show it on the View menu. • You can resize and reshape the grid.
  • • Save your modified grid as a Perspective Grid Preset. • You can modify your saved preset. • When you are in Perspective Grid mode, the basic shape tools draw in perspective. Work with a Perspective Grid
  • Work with a Perspective Grid Save your grid settings as a named preset
  • Work with a Perspective Grid • Specify on which perspective plane you want to draw by clicking one of the faces on the Plane Switching Widget.
  • Work with a Perspective Grid Left perspective plane is selected Rectangle is drawn on left plane
  • Work with a Perspective Grid Once you’ve drawn objects in perspective, use the Perspective Selection tool to click and drag objects to move and modify them in perspective.
  • Work with a Perspective Grid Three copies of an ellipse dragged and dropped with the Perspective Selection tool.