Through the explanation of this article, friends can understand the expression methods of the "three sides", "atonal" and "perspective" of the cone, and at the same time understand how to use the "Transform" menu command of Photoshop.
The image below shows the completed effect.
Figure 2.1-37 The finished effect of cone drawing
The method and process of drawing a cone :
Press the Ctrl+N key combination on the keyboard, or execute the "File → New" command on the menu bar to open the "New" dialog box. The settings are shown in Figure 2.1-38.
Figure 2.1-38 Settings of the "New" dialog box
Create a vertical auxiliary line in the middle of the document window, select the "Rectangular Marquee Tool" (shortcut key M), hold down the Alt key, and create a rectangular selection with the auxiliary line as the center of symmetry, as shown in Figure 2.1-39.
Figure 2.1-39 Create a rectangular selection
Select the "Gradient Tool" (shortcut key M), and set the gradient mode to "Linear Gradient" on the options bar (click the position marked 2 in Figure 2.1-41).
Click the position marked 1 in the option bar shown in Figure 2.1-40 to open the "Gradient Editor" and set the gradient, as shown in Figure 2.1-41.
Figure 2.1-41 Click the position marked in the red circle to open the "Gradient Editor"
Figure 2.1-41 Setting the gradient in the "Gradient Editor"
Create a new layer, hold down the Shift key, and create a horizontal gradient with the two vertical sides of the rectangular selection as the starting point and end point, to get the effect shown in Figure 2.1-42.
Figure 2.1-42 Gradient effect created within a rectangular selection
Execute the "Edit→Transform→Perspective" command on the menu bar, drag the upper control points so that they intersect on the auxiliary line to obtain a tapered effect, as shown in Figure 2.1-43.
Figure 2.1-43 The cone effect obtained by "perspective" transformation
Select the "Elliptical Marquee Tool" (shortcut key M) and create an elliptical selection with the auxiliary line as the center, as shown in Figure 2.1-44.
Figure 2.1-44 Creating an elliptical selection
Execute the "Select → Transform Selection" command on the menu bar, and then execute the "Edit → Transform → Perspective" command on the menu bar to transform the perspective of the selection, as shown in Figure 2.1-45.
Figure 2.1-45 Perspective transformation selection
Change the size of the selection and move it to the appropriate position, as shown in Figure 2.1-46.
Figure 2.1-46 Change the size of the selection and move it to the appropriate position
Press the Shift+Ctrl+I key combination on the keyboard to invert the selection, and then use the "Eraser Tool" (shortcut key E) to erase the excess part, as shown in Figure 2.1-47.
Figure 2.1-47 Use the "eraser tool" to erase the excess parts
The effect of the cone is obtained, as shown in Figure 2.1-48.
The cone effect obtained in Figure 2.1-48
Next, draw the "projection" part of the cone, create a new layer under the current layer, select the "Polygonal Lasso Tool" (shortcut key L), and draw a selection as shown in Figure 2.1-49.
Figure 2.1-49 Draw a “projection” shaped selection
Set the foreground color to dark gray, press the Alt+Ctrl+D key combination on the keyboard to feather the selection by 5 pixels, and press the Alt+BackSpace key combination on the keyboard to fill the selection with the foreground color, as shown in Figure 2.1-50 .
Figure 2.1-50 Fill the selection with dark gray
Select the "Eraser Tool" (shortcut key E), right-click the document window, and set its strokes in the pop-up palette, as shown in Figure 2.1-51.
Figure 2.1-51 Setting the strokes of the “Eraser Tool”
Use the "Eraser Tool" to erase the right part of the "projection", as shown in Figure 2.1-52.
Figure 2.1-52 Erase the right part of the "projection"
Select the "Smear Tool" (shortcut key R) and process the part marked by the red circle in Figure 2.1-53 to make it more natural.
Figure 2.1-53 Comparison before and after using the "Smudge Tool" to process the marked part
Select the "Dodge Tool" (shortcut key O), select the "Cone" layer, and erase the part of the cone close to the projection, as shown in Figure 2.1-54, to complete the drawing of the cone.
Figure 2.1-54 Lighten the part of the cone close to the projection