Join John Derry for an in-depth discussion in this video Understanding tool presets and brush presets, part of Photoshop CS5: Painting with the Mixer Brush.
When you create a useful brush in Photoshop, you're most likely going to want to…save it for future retrieval and use.…It is easy to assume that saving your expressive instrument as a Brush preset…would be the way to go, but you definitely want to save it as a Tool preset.…In this video, we'll find out why.…The first thing is to think of Tool presets as a higher level of Brush preset.…They capture more information.…They capture everything that the Brush preset, would plus the brush tip shape,…the various dynamics, whatever is in the Option bar;…all of these are part of a Tool preset.…
They are not part of a Brush preset.…I'm going to show you what I mean.…I'm going to just scramble up these settings, so that they're random right…now, because I'm going to compare a couple of different brushes to show you what I mean.…Okay, we've completely changed what we've done here.…I'm going to go to Brush presets.…I've saved a Brush preset.…It's named the same as one that's over in the Tool presets here.…So first, let's load the Brush preset.…
- 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.