|intro - in the beginning, there was nothing but a blank
sheet of pixels
part 1 - getting started with Twisted
Brush Pro Studio
part 2 - Saving the image and
channel in a single file
part 3 - Loading an
image file straight to PD's Custom
part 4 - Loading two images: color and mask into
part 5 - Discovering new brushes:
part 6 - Painting into an AVI file to record as
part 7 - Mandala
brush animation with
animated multi-frame brushes
part 8 - The
animated Brush Timeline edtor
an Image as a Custom Brush
|If you've saved an
image from Twistedbrush with the alpha channel in the same image file,
it's a snap to load it into the Project Dogwaffle custom brush system:
Simply use the menu: Brush >
The procedure is the same so far whether the image file actually
contains usable transparency values in the alpha channel or not.
|If the image is in
PNG format but there's many other image files, you may want to make it
easier to find the image file by using a wildcard in the File name
and be sure to use Automatic type so it looks not only for Targa files.
Let's first look at an example where the image actually didn't get
saved with the alpha channel for transarency masking.
an image without Alpha:
Here's an example with an image of the number 5, which was saved with
the background (plain white) and thus without transparency mask in the
As soon as you've opened the image into the brush, you should store it
in a place holder"
Store / manage...
( keyboard shortcut: " )
Using the stored brush to paint, for example at 50% opacity, you can
tell that there's opaque white background around the blue number 5.
Also, it doesn't show the standard checker board pattern that would
indicate transarency on the background.
the Brush Background Transparent:
After loading a custom brush, you can change the transparency keying.
Instead of using alpha, or if there was no alpha transparency in the
first place, simply right-click on the custom brush pickup tool icon.
(the square-brackety thing next to the color picker aka turkey baster)
Select a pixel from the background region (white). This will make it
key to white for transparency.
Adjust the high pass slider to the max and slightly increase the low
clip value. This will reduce or remove the white edges along the
borders of the opaque shape.
|Now when you paint
with it, the blue number 5 is the only opaque part.
|Loading an Image with Transparency in Alpha
|If the image
actually was saved with the alpha, there's no need to re-key the
transparency: by default, PD Pro will use the alpha channel to mark the
transparent parts of the images as it gets into the custom brush system:
Select a PNG image which has the color and alpha channel, all in one
file (32-bit file).
Once again, store this newly loaded brush to manage this new custom
You can immediately use this brush. Use the sliders for scale, rotation
angle, and various color or hue/saturation and brightness controls.