This GIMP (GNU) tutorial demonstrates how to create an eye-catching Gradient Avatar using GIMP’s Blend Tool.
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.
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).
Launch GIMP & Organise Its Workspace & Palettes
Create a New (Transparent) Image, and set the following Width and Height and Fill with Transparency attributes. (Alternatively, set New Image dimensions of your choice. I am selecting 200 x 200, however, 100 X 100 Pixels is a good avatar size).
Now, from the left-side Toolbox, activate the Blend Tool.
Then (from the Blend Tool’s left-side Options Box), click open the Gradient tab; and from the subsequent drop-down library, activate a Gradient of your choice. I am selecting a Gradient named Four Bars, however, for personal avatars, experiment with GIMP’s Gradients.
Now, select a Gradient Shape of your choice. I am selecting Radial.
After you have chosen a Gradient, a Gradient Shape and a Gradient Colour of your choice, you are ready for the next step.
To apply your Gradient to the Transparent Image, press down the Ctrl Key, and simultaneously left-click and stretch a short-ish Gradient Line in the direction illustrated below-left. As soon as you release the mouse button, your choice of Gradient will be applied to your Transparent Image - as illustrated below-right.
It’s important to experiment with the Gradient Line’s Direction and find a look you are happy with. By this I mean the Gradient Line can be stretched in any direction, and it can stretched the whole length of your image. For personal results, it’s important to experiment with different Gradient Line Directions and different Gradient Line lengths.
Example 3 (Rainbow: Conical sym)
Example 4 (Rainbow: Spiral cw)
To smooth the Swirl’s edges; from the top menu, choose Filters then choose Blur and then choose Gaussian Blur. And from the subsequent Gaussian Blur dialogue box, enter a Blur Radius of around 3.0, (px) - and then click OK.
Example 5 (Rainbow: Shaped Angular)
You may need to repeatedly stretch the Gradient Line to force it to render.
Congratulations, your Gradient Avatar is complete, and it is ready to incorporate into your artwork, or to upload to a Forum in your usual manner.
If you need a smaller avatar, then Link Here to learn how to reduce your image’s size.
Optimise & Save Images
Wendi E. M. Scarth. Top of Page.