Making Textures with Project Dogwaffle
for use in 3D Rendering & Animation

more:   part 1 / part 2 / part 3 / next: part 4 + 5
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Part 3 - Experimenting with more Filters
Displacement Tool Magic

Let's create another texture. In this case we'll learn to use the displacement tools with an image in the swap buffer to displace another image which is in the main buffer. There are some pretty amazing results that can come from this, to make marble-like and other natural looking rock textures for example.

Start from a blank buffer, then go to the Plasma Noise filter

menu:  Filter > Render > Plasma noise...

Don't use the colored mode.

Use size 7.
The image is in the main buffer at this time. Jump to the alternate, the Swap buffer  - shortcut "j" to j)ump

Repeat the use of the Plasma noise, but a slightly different size. Use 6 for example.
We now have similar plasma noise images loaded in the Main and the Swap buffer. Just use 'j' to jump back and forth to compare
(Main and Swap buffers - Click images to enlarge)

Let's make sure we're on the Main buffer now. Then use one of the "Displace by Swap..." tools from the Filters menu:

menu:  Filter > Displace by Swap > Displace

As you use the slider, Dogwaffle uses the pixels from the swap buffer to displace the pixels in the main buffer. Quickly it starts to look like some kind of marble rocks.

click to enlarge >>>
Playing with Gradients - Colormapping

The next trick will be to map an interesting colormap across the black-and-white image.

Keyboard shortcut:  "p"  to open the color gradient panel

Notice that there are several groups of predefined gradient sets accessible from the 'Gradients' button in the lower right corner of the gradient tool. Select the Metals or Gun Metals collection, for example.
Then use the slider to select one of the gradients from the current set.

Finally, apply the current gradient to the image:

menu:  Filter > Color > Map to current gradient

click to enlarge >>>
Note that there are several ways to change or make your own gradients. You can 'paint' within the colored area of the gradient directly to increase/decrease the progression of  the red, green, blue or opacity channels.

You can also drag-and-drop colors from the color palette which are at the lower right of the Tools panel. Drop the desired color anywhere along the scale at the bottom of the color area of the gradient. This will serve as anchors or reference colors placed there.
There is a Smooth and an Auto-Smooth option in the gradient too. This helps if you don't want color changes to happen all to suddenly.
Whenever you're ready with a new gradient, map it again to the current image.

Or first use "u" to undo the prior color mapping and revert back to the greyscale original.  Then map the new gradient.
Another important feature in the gradient tool is the reverse button, as sometimes the 'interesting' colors are on the wrong side of the gradient.
Sometimes you will want to make it appear as a fabric or fluffy material of some sort. To that effect, the Brush Strokes filter can do the right effect.

menu:  Filter > Artistic > Brush Strokes...

There are tons of options and combinations to try and experiment with here again.
Use the color embossing filter perhaps to add some relief to it afterwards.

click to enlarge >>>
Other common filters: 

the Value adjustments gives access to brightness, gamma, contrast and value
There are several blur filters like the Gaussian blur.
One of the blur tools is the Light Diffusion. The effect is that bright parts bleed into neighboring dark parts. This can be an essential tool for added realism on a 3D rendered image.

Another powerful tool is the Bumby Toy. Instead of starting with the Plasma Noise, try the Bumpy toy, and see the many options and vast variety of background patterns you can generate from it.

menu:  Filter > Render > Bumpy toy..

There are options for different algorithms, iterations, scale and self-displacement in some cases, as well as using the gradient on-the-fly.

You will likely find this to be a good source for creating a starting point for fabulous new patterns and textures.
Jitter Displacement.  Another one of the displace-by-swap tools adds a jittery look to the image. It could be of great use when making tempered glass or steel surfaces like for a Wok. Keep this one in mind, or the relatedt Jitter noise filter.

click to enlarge >>>

This completes that texture #3

click to enlarge and save >>>

more:   part 1 / part 2 / top / next: part 4 + 5