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Lesson 3 shows how you can make a plastic product with a transparent surface.
For this lesson you will draw an imaginary jigsaw
Start with a new document, the background color you choose will be the color of the product.
Make a rough sketch with a black air brush.
Color the product following the standard rules.
First the frontside (with horizontal strokes),this is the real porduct color.
second the gray right side (again horizontal strokes).
third the top side white glow (very large, 80-160 low opacity, 1-5% air brush).
Use straigth lines for the guiding plate under the product.
Now erase again everyting that is outside the product.
Notice that when you erase the part under the eraser is the new background color.
(When the background color is not set properly this will not be the right color.)
Since you don't make a power cable to this product this will be powered by a battery pack.
Make clear that the battery pack is a detachable part. You can do this by draw this part in a different color or you can make a clear cut between the two parts (shadow and highlight lines).
When you make a darker part at the back the highlight should come back at the top part. This should be a gray haze.
Now the transparent part of the product.
To have a convincing transparent part there should be someting behind this part.
If your drawing is already there where this part has to be, make a selection (like you did in lesson 1) where you want this part to be.
Keep this selection on for the next few steps. If you lost your selection you can reselect it by click in the menu "select" on "reselect" or presse the keybord shortcut "ctrl+shift+D".
Make this part of your drawing less bright by erasing it partly. You can do this by take a large eraser (100-180, bigger than the selection) and set the opacity to 50%, now you only have to go over your selection once and it is vage.
Use a black marker to "invent" the inner parts (it does nog matter how it looks, there only should be something, preferable a lot, behind the transparent part).
You still have your selection on.
Now take a large (100-180) air brush, use dark gray or the color of you product but very darkened. The opacity should be low, 5-10%.
Fill the selection in the same way you did the rest of the product, only here vertical motion is easier because of the small area.
To finish this part use a white large air brush to make the lighter part of this selection.
A Highlight line (bright white line) can be added on the part to give it a more polished look.
Put a White line on top of your transparent part and a dark gray at the bottom to give the part a thickness.
To give a metal look to the guidance part below the jigsaw, make a selection on the top surface.
Fill this surface with a lighter version of the background color
This will look like reflection.
Now make some highlights on the bends and the corners.
Give the metale part a thickness by putting a dark line under it.
Now finish your drawing:
Give some details to you product.
Redraw the most important lines.
Make the edges round by adding some dark wide lines to it.