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When I'm coloring a drawing in PS, if I set the opacity to 50%, color, then lift my brush, then nick the same area, it stacks the opacity for a more opaque results. I want it to all be the same unless I increase the opacity, and I see this in a lot of YouTube videos. Right now coloring is nigh on impossible because all the colors stack and I have a weirdly shaded photo just from coloring.

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Maybe you should give us an example of the technique. At the moment the only thing I can think off is to set opacity to 100%, but I highly doubt that it's what you want... :) – Joonas Jun 20 '12 at 20:12
@Lollero Thought the same think, using layer opacity rather than brush opacity. But I guess it's not the best way to go since you can't really choose the actual color before you start painting – Yisela Jun 20 '12 at 20:31
@yisela -- You should add that as an answer since painting 100% opaque and using layer opacity is really the only way in Photoshop. – Scott Jun 20 '12 at 22:17
up vote 5 down vote accepted

As @Scott mentions, I'm not sure you have any options in Photoshop for a brush not to 'stack'.

An alternative would be to use layer opacity instead. You set the layer to 50%, for example, and the brush to 100%. That way you can paint without any overlapping.

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Masking out the different areas and colouring them on different layers might help with your problem. More layers -> more control. You can always drop opacity and/or delete overlapping colours that way.

I find that while drawing and painting, the more lazy you get and work on one layer the more problems you have later on =)

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