Join John Derry for an in-depth discussion in this video Understanding options for angle adjustment, part of Photoshop CS5: Painting with the Mixer Brush.
The Angle control is most useful for someone that is painting with a mouse.…This is something I would definitely not recommend for use with bristle tips,…but if you have to use a mouse, you can use the Angle slider to get a specific…visual appearance on your strokes. Let's take a look.…Now I'm painting with a mouse now, and you'll see I have no control over the angle.…It's all one angle.…This is where the Angle control can be used to set what the single angle of the…mouse will be on this particular brush.…
So just by changing this, you can get a simulated angle, but you can't change the angle.…That's the big 'gotcha' about working with a mouse.…But one thing you can do, and we'll temporally go over here.…If we go to Shape Dynamics, you'll see that the Angle Jitter is off.…That's because the Art Pen, when it's present, is automatically recognized by…Photoshop, and there is nothing you have to do to tell it to control angle.…It just knows what to do.…However, for a non-barrel rotating device, like a mouse, we can use initial direction.…
- 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.