This tutorial introduces in detail the cutting out techniques of transparent objects such as glass. The idea is: first decompose the components of the transparent object. Cut out the opaque parts first, then cut out the other parts and copy them into several more layers. You need to change the mixing of the layers. Pattern, some parts also need to be painted with a brush. The author's method is relatively novel and worth learning!
Original picture
final effect
1. First, use the Gongbi tool or the Lasso tool to outline the opaque parts. Note: The tools in the red box are all available. I usually like to use the precise pen tool.
2. Press the ctrl+enter keys to turn the path into a selection. As shown in the picture: (By the way: As you can see, there are two pictures in my layer. I saved them for the final base map. It has nothing to do with the cutout process, so don't worry about it).
3. Press ctrl+j to automatically generate layer 1 above the background layer, as shown in the figure:
4. Drag layer 1 to the top, right-click on layer 1, and rename layer 1 to "opaque part" (of course, you can leave it unchanged, I'm here so that everyone can understand it at a glance)
5. Return to the background layer and use the magic wand tool to select the white area.
6. Perform reverse selection, so that the glass is selected. As you can see, the ant line surrounds the glass this time. As shown in the picture:
7. Do not cancel the ant line, press ctrl+j to generate layer 1, hide the background layer, and the display effect is as shown in the figure:
8. Copy layer 1 as "Copy of Layer 1", drag it above "Basemap 2", open the eye in front of the basemap 2 layer, and make layer 2 visible. Specifically as shown in the figure:
9. Set "Layer 1 Copy" to "Multiply" and pay attention to the content in the red oval. As you can see, after setting Multiply, the white under the glass disappears, but the glass appears dim, lackluster, and unnatural. So the cutout has to continue.
10. Go back to "Layer 1" again, copy layer 1 as "Layer 1 Copy 2", and move it below the "opaque partial layer" (by the way: please pay attention to my layers when operating. Hide and show, those with eyes are shown, those without eyes are hidden).
11. Apply the image command to "Layer 1 Copy 2", as shown in the figure:
12. Set the blending mode to "Multiply". As you can see, the image has become noticeably darker. Why make the image darker? The purpose is to enhance the black and white contrast of the image, darken the image, and leave only the strongest highlight areas for easy cutting out.
13. Repeat the apply image command just now for a second time, and the result will be as shown in the figure:
14. Set the foreground color to black, and use the brush tool to paint black on the glass with an opacity of 30%.
15. Be careful not to blacken the area circled in red, because those are the shiny parts of the glass in the end.
16. Set copy 2 of layer 1 to "Screen" or "Screen". Pay attention to the content in the red oval. As you can see, the glass is shiny this time, but the white color of the original image is still faintly present. You must continue to apply black to lighten the white background.
17. This time set the opacity of the brush to 10% and paint.
18. Make the eyes visible in front of the opaque part of the layer. As you can see, the glass is cut out.
19. Change the background to see the effect. Wow. . . The glass appears clearer.
![How to cut out transparent glass]()
