GIMP tutorial – combine two textures using color select tool

By , last updated June 14, 2015

Hi everyone hope you are having a great day!

Today I am going to show you a simple tutorial in GIMP on how to combine two similar backgrounds using the color select tool and also via layer masking. I have used these two similar pictures from sftextures.com:

fireworks-explosions-seven-ones-different-red-yellow-lilla-blue-colors-vector-graphics-black-background-texture-512x368 custom-christmas-firework-frame-bright-colorful-vector-art-graphics-burning-fire-calendar-congratulation-black-background-stock-photo-over-5000-512x369

Since both of these textures have a black background I am going to use the color select tool to combine them. The steps are as follows

  1. Open gimp and open the left picture as a layer pressing ctrl + alt + o.
  2. Open the second picture as a layer using ctrl + alt + o.
  3. Make the layer semi transparent by moving the opacity bar to 50 percent and Move the picture in a position such that the fireworks are centered.

    Snap 2014-12-03 at 20.59.09

  4. Change the transparency back to 100 percent and select the color selection tool by either clicking it or pressing shift + o.

    Snap 2014-12-03 at 21.00.16

  5. Select the black color in the upper layer. You will see ants running clockwise indicating the black color selected throughout the layer.
  6. Go to Layers>Transparency >Add alpha channel and press del. Press ctrl +shift +a to deselect everything.

    Snap 2014-12-03 at 20.59.45

  7. Voila! You have a great picture of plenty of fireworks as one image.
  8. Use the background eraser tool to erase any white strips leftover in the layer and save your work in any format of your choice-
  9. Your final image would look like this:

    fireworks 2

Hope you liked this tutorial. Please keep visiting sftextures.com for such future simple tutorials in GIMP.