Tutorials:
|
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
alpha
channel in a single file
part 3 - Loading an
image file straight to PD's Custom
Brush
part 4 - Loading two images: color and mask into
one
part 5 - Discovering new brushes:
Kaleidoscope!
part 6 - Painting into an AVI file to record as
animation
part 7 - Mandala
brush animation with
animated multi-frame brushes
part 8 - The
animated Brush Timeline edtor
|
|
Loading
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 >
Open...
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
field:
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.
Loading
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
alpha channel.:
 |
As soon as you've opened the image into the brush, you should store it
in a place holder"
Brush >
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.
 |
Turning
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
brush.
|
You can immediately use this brush. Use the sliders for scale, rotation
angle, and various color or hue/saturation and brightness controls.
 |
|
|
|
