Join John Derry for an in-depth discussion in this video Using additional color selection options, part of Photoshop CS5: Painting with the Mixer Brush.
I want to introduce you to a couple of other secondary ways to access color…while you're working, and once again, these can be tied to the Wacom tablet…control surface, which just helps to maintain focus and keep yourself on task,…rather than spending time searching through the interface to find things.…The first one I want to talk about is Adobe's own color picker, and you are used…to that. You see it when you double- click on the current color, for example.…A lot of people really like this color picker, but it's never had a keyboard…shortcut to be able to bring it up, other than through some mechanism within the…interface, and they now have that.…
So I want to go to the keyboard shortcuts. I'll go to the Edit menu in Mac and…under the Photoshop menu in Windows, and if we go to Keyboard Shortcuts and…visit the Tools section, we will go down to the bottom here, and we now have…the ability to assign a keyboard shortcut to the foreground and background color picker.…I tend to just use the Foreground because it's so one that normally is going to…
- Understanding the axes of motion with a Wacom tablet
- Choosing a brush shape and Bristle Tip
- Adjusting brush angle
- Loading color and control the behavior of the Mixer Brush
- Modifying surface texture
- Simulating the texture of canvas
- Saving tool presets for brushes
- Creating a painting from a photograph
- Painting from scratch with the Mixer Brush
Skill Level Intermediate
Q: What factors affect how well the mixer brushes in Photoshop perform? Does document size (i.e. 72dpi vs. 240dpi) affect the performance of the brushes? How can I maximize brush performance?
A: The recordings for this tutorial were generally done at a standard screen resolution, but a real-world situation will often require higher resolutions. For example, offset printing generally dictates files at 300ppi (pixels per inch). Inkjet printing is often discussed in terms of 240ppi. For web-based viewing, imagery at 72ppi is considered acceptable. You can easily determine the pixel resolution of an image by multiplying the size in inches by the above ppi (pixels per inch) factors.
Let's use a typical real-world size as an example: 20" X 24". This is a common photographic print and frame size.
72ppi = 1440p X 1728p = 2,488,320 pixels
150ppi = 3000p X 3600p = 10,800,000 pixels
300ppi = 6000p X 7200p = 43,200,000 pixels
Note that each of these resolution factors quadruples the total pixel count.
It is the amount of pixels being manipulated that dictates both application and brush performance. With this in mind, we can state that performance decreases as image pixel size increases. There are three primary factors that affect an application's ability to handle large pixel-based manipulation.
For the full FAQ, please download the PDF file here.