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Adobe Photoshop 7 Tutorials
Brush Tools / Brush Dynamics
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Subtitles of the Movie (Adobe Photoshop 7 / Brush Tools / Brush Dynamics)
Let's talk about some of these other brush dynamics. And you can see my basic brush shape here. Go back to shapes dynamics and talk about size and of course we can add size jitter. So you can see if we turn this way up how it will look in my brush stroke preview. And very often I tie size to pen pressure. So a very light stroke, I have a small brush and if I begin to press down harder I get a larger brush. And I've already talked about the angle option, and we also have roundness controls, and we can tie that to pen pressure as well. So think about this that my, if I go back to brush shape, that a very light pressure it will look very squeezed down and heavy pressure it will be very round. So light - heavy - light. We also have options for scattering our brush marks. We can increase the scattering slider, and notice how the brush marks will be scattered around the line that you make. And we can tie this again to something like the pen pressure. So at a very low pressure there is not much of scattering, and if we press harder we get more scattering. Whenever I choose a pen pressure option, notice how the brush stroke preview updates. It assumes the beginning and end of the stroke will be a light pressure. And the middle will be a heavy pressure. If we enable the count option, count specifies the number of brush marks applied to each spacing interval. So we can really increase the effect by increasing the count value. Another feature that we can employ with our brush dynamics is have a brush work with a texture. And when we go to the texture section on the brushes palette, we have a large pop down menu here we can click on - this thumbnail of the texture. And I'm going to choose a very high contrast texture here. And notice how that will look when we make some marks. We can also change the scale of our texture, and we can choose what kind of mode the texture will be used with. The depth slider allows you to mix your texture with your brush tips, so at a 100% we are getting a the most mix possible. A middle value will mix our brush and texture about 50% in this case, and if we turn it all the way down, we get no mix at all. So I'm going to de-click the check box next to texture, so we are not using that. Another option we have is to have our current brush be pushed through a different brush. This is called the dual brush option, and with the dual brush option, we can choose the various parameters for our secondary brush. So the diameter slider is now controlling the secondary dual brush. Clicking use sample size will use the exact size of our secondary brush, in this case the captured brush, which was 21 pixels. So I'll disable that, and talk about color dynamics. You can mix your foreground and background color by going to the color dynamics section. And what we can do here is, I'll just go ahead and choose a different background color, and if you enable foreground/background color jitter, you begin to have a bit of a mix for foreground and background color. That's a very low value. So, if I increase that a bit, you can see that my brush mark is now being laid down with both the foreground and the background color. And if we increase that a whole lot, we'll get a mix of the two constantly. We can of course have this tied to one of our input parameters such as pen pressure. And to the same extent, I could have my brush add randomness to the hue of the currently selected foreground color that I would be using. I'll turn that back down to zero, and of course we get the mark with no hue randomness. And we also have the option to add randomness to the saturation value of our foreground color as well as brightness. Purity, will use at zero %, will use the color that you've chosen as your foreground color. If we decrease the purity value, we'll just begin to make our color less pure. Going to get rid of all these marks and disable color dynamics, and go back to my bottom most section called other dynamics. And talk about this feature, which I often use, the opacity control. And I often have opacity tied to pen pressure. And this way of course, if I press lightly I get a light low opaque mark, and if I increase pen pressure I get a more opaque mark. You can increase the opacity slider for your brush tool to 100%, and then really take advantage of the pen pressure range that you can control using your pressure sensitive stylus and tablet combination. And to the same extent, we could also control the flow of our media by tying that also to pen pressure. And get a very customized airbrush type of look. The next section here are simple check boxes. We can add a noise effect to our brush mark. It will add kind of a grainy effect. And if you choose wet edges, it will make the center of your image semi-transparent as you were using a water brush. At any time if you want to change the opacity of your brush mark, say if we don't have this tied to an input parameter such as pen pressure, I can type in any number and it will go to that 10% value. So 2 would be 20% opacity, 5 - 50% opacity. 0 - 100% opacity, and so on and so forth. If you type in quickly say 4,5 I'll go directly to an opacity value of 45%. Enabling airbrush would give you a slightly smoother effect when you are using a brush tool. And smoothing will help when you make very quick marks. And if we have a texture in our background, we could choose to protect the texture by enabling protect texture. So you have a lot of controls, and customizing a way you want your brush to look. And if you are happy with your completely customized brush look I recommend adding it to your brush preset by clicking on the brush preset popup palette and going over and choosing new tool preset, and giving your custom brush parameter collection a name. And then you can always access it from the brush preset palette menu.
Tutorial Information
| Course: | Adobe Photoshop 7 |
| Author: | Andrew J. Hathaway |
| SKU: | 33329 |
| ISBN: | 1889347272 |
| Release Date: | 2002-09-05 |
| Duration: | 11 hrs / 152 lessons |
| Work Files: |
Yes |
| Captions: | No |
| Compatibility: |
Vista/XP/2000, OS X, Linux QuickTime 7, Flash 8 |
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