Q&A: help with the brush tool in photoshop CS3?

Question by Jay S: help with the brush tool in photoshop CS3?
when i change the opacity of the brush tool in CS3, it looks great, but the problem is that if i lift up on my mouse and click again, it will darken any area that i have already covered with the brush…this is a problem because it means i’d have to paint entirely with one stroke…what can i do to fix this?

thanks for your help


Answer by Left-T
Check this site for any problems using Photoshop


I’m not sure if you are using layers. If that is the case, click the icon to the left of each layer that isnt selected so those layers are invisible and the only visible layer is the one that you want to move.

0 thoughts on “Q&A: help with the brush tool in photoshop CS3?

  1. When you have an opacity setting of less than 100%, any time you go over a previously drawn line, it’s going to darken. This is similar to what would happen with a real brush and watercolor paint.

    In your case, you’re not trying to simulate painting, so here’s your best bet: Leave the opacity setting at 100% and change the apparent opacity of your color in Photoshop’s color picker like this:

    1) Let’s say you want to draw with a light blue line. Pick pure blue (R=0, G=0, B=100) as your color in Photoshop’s color picker.

    2) While you’re still in the color picker, notice that there are four different ways of describing the color. There’s RGB which specifies the amount of Red, Green and Blue in a color. Above that in the color picker is HSB (Hue, Saturation, Brightness). There is also Lab (Lightness and two channels called A and B). Finally there is CMYK which specifies the amount of Cyan, Magenta, Yellow and Black.

    3) Use the HSB section of the color picker and reduce the S (Saturation) until you get the light blue – or whatever color – you want.

    4) Now close the color picker and start painting. As long as the opacity of the brush is set to 100%, you’ll always get the same light blue no matter how many times you paint over a previously drawn line.

    There are many ways to choose the correct color, but the main idea here is to create a light color (similar to what a low opacity setting would give you) in the color picker and keep opacity at 100%. It’s the only way to continue a line at a later time and not have the color get darker where the two lines intersect.

    Hope this helps.

    Information for traveling photographers.

  2. That is completely normal. It is an “additive” effect. I much prefer that it works that way so I can build up to the look I want. What I suggest you do is use a much lower opacity brush than what you are now. So if you are lowering the opacity to 50%, try instead lowering it to 20 or 30%. Set it so you HAVE to go over an area more than once. This gives you much more control on precisely how much to build up the brush effect to get the look you want.


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