Join John Derry for an in-depth discussion in this video Loading brushes to enhance visual interest, part of Photoshop CS5: Painting with the Mixer Brush.
With a prepared mixing layer, you can quickly load your brush with visually rich strokes.…In this video, we will take a look at putting this technique to work. So where are we?…I've now got my mixing layer set up, and I am going to start painting on layer…2, which I want to be sure I'm on.…Now, I can go ahead and start sampling colors from these layers.…One thing you want to make sure you have turned on is Sample All Layers.…The way I am doing this is I am using the front barrel button of my Wacom Pen.…
I've mapped the Option or Alt key to that button which is the way you pick up…multiple colors in the Mixer brush.…So just click down, and now I can start to paint my sky.…You can see there is a couple of things going on here.…We have color variation within the stroke, and I have also got my Texture turned…on, so that the stokes also have some quality of the canvas in them as well, and…that's what we want you here.…So the combination starts to give you many qualities that you could match up 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.