Join John Derry for an in-depth discussion in this video Locking textures, part of Photoshop CS5: Painting with the Mixer Brush.
When you are painting with the Mixer brush in conjunction with textures, you're…normally not going to want the texture to change from brush to brush.…You want to maintain a consistent painting surface, which means that the texture…itself should not change.…There is a control within the Texture panel that allows this to not happen.…I am going to show this to you in conjunction with Tool presets, which is where…this really is important.…
We haven't covered Tool presets yet.…We will elsewhere in the title, but I feel it's important to note it here so…that you understand the importance of the Texture Lock.…So I am going to be using a couple Mixer brush Tool presets to explain exactly…why this is an important feature.…So you'll see that beside each of these subpanels you have the opportunity to…lock this subpanel.…I am going to leave it unlocked for the moment.…Let's go over, and here are the two sample Tool presets that I've created…from the Mixer brush.…
I'll just paint with one.…You'll see that this has a specific almost kind of wood-grain-like texture in…
- 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.