This GIMP (GNU) tutorial demonstrates how to re-spray a car’s bodywork. To work along, you are welcome to download the Transparent Start Image I am working with Here. Unzip the file and open the image onto GIMP’s workspace.
You can quickly Undo a step at any time by pressing Ctrl then Z. Alternatively, click a previous Undo History snapshot - Windows then Dockable Dialogues then click Undo History. In addition, to Zoom in (or Zoom out) of your image; from the top menu, choose View then select a Zoom Tool from the subsequent drop-down list.
Fuzzy Select Tool For Beginners
Launch GIMP & Organise Its Workspace & Palettes
Open your choice of Start Image onto GIMP’s workspace - File then Open - Ctrl then O.
Ensure the Layers and the Undo History Palettes are visible, and then drag them into position over your workspace - (Windows then Dockable Dialogues - then click Layers and Undo History).
Now, you are looking to isolate the car with a Selection Marquee. Therefore, from the left-side Toolbox, activate the Fuzzy Select Tool.
And enter the following Add to the current selection settings into the Tool Options box.
Then left-click over a transparent area - as demonstrated below.
Now, ensure all areas are isolated by a Selection Marquee by carefully
left-clicking over the remaining unselected areas - as demonstrated below.
Then from the top menu, choose Select then choose Invert. Ctrl then I.
Now, from the left-side Toolbox, activate the Blend Tool.
And from the Blend Tool’s Tool Options box, set a Blend of your choice - as illustrated below.
Overlay Blend Mode Important!
Change the Blend Mode from Normal to Overlay.
For personal results, it’s important to experiment with different Gradient Shapes.
Now, left-click and stretch a “Gradient Line” over the selected car - as illustrated below.
As soon as you release the mouse button, a gradient will be applied inside the selected car- as illustrated below.
To deepen the effect, repeat the gradient application. However, you may wish to lower the second Gradient’s Opacity if you feel two 100% applications results in an oversaturated blend.
To finish, from the top menu, choose Select and then choose None.
Congratulations, your Car Re-spray is complete and it is ready to save.
Drop Shadow Tip
My Tutorial Here demonstrates how to apply a Drop Shadow - Filters then Light and Shadow then Drop Shadow.
Transparent GIF Tip
Link Here to learn how to save your Transparent Image as a Transparent GIF.
Fill Layer Tip
My Tutorial Here demonstrates how to create a Fill Layer and Fill it with either a Solid Colour, Pattern or a Gradient.
Now you are more familiar with this technique, you can have lots of fun re-spraying transparent objects.
Wendi E. M. Scarth. Top of Page.