Changing Color of Brushes

[Phily]

Hello,

I just started using some smoke brushes from the Affinity store. The brushes are black. How do I change the color of the brush, so that I can change it into white?

Thanks

[firstdefence]

Go to the Colour or Swatches Panels and select a colour.

[Phily]

Got it! I'm in the Swatches panel and I can see the color of the brush change if I select colors, but when I pick white and use the brush on a black background I get a light grey or nothing at all.

[firstdefence]

Check your opacity on the brush and in the colour panel.

[Phily]

Yes, opacity is on 100%. Picking complete white shows nothing, as if the brush is invisible. It should show since I'm using it on a dark enough background.

[Phily]

The least dark color that works seems to be a light grey. 

[firstdefence]

I think you might be using the Colour Replacement Tool, you need to select the Paint Brush Tool.

To select the Paint Brush Tool just press 'B' on the keyboard a few times until you see the Brush on its own icon.

 

[Phily]

No I'm using the paintbrush tool. I do have a b&w image. But it's an RGB image. Colors work except white.

 

[firstdefence]

You have Blend Mode: Multiply set, change that to Normal

[Phily]

That works. Thanks!

[firstdefence]

We got there eventually, its an easy thing to miss, enjoy your painting.

Have a play with the Blend Modes on brushes to get different effects, using Blend Mode: Screen will show white and not black, it kind of the opposite to Multiply.

[Uncle Mez]

Hello @Phily
Happy to read your question, let me now add my 2 cents here.
in fact, i have a Technic i enjoyed a lot for days which consist to duplicate the Brush you want to work with, then you go to its settings and in the advanced tab simply slide up the Hue bar; don't forget to put the setting next to that Hue bar to (by unfolding it) to Velocity or simply whatever you may prefer.
After that's done, close it and enjoy painting with flowing Hue colors.
100% Hue with Velocity will give you more color variance, if you set less percentage of Hue then you will get colors that fits in that space only (which i found not bad at all).

Hope this will make you happy !

[Uncle Mez]

2 hours ago, firstdefence said:

I think you might be using the Colour Replacement Tool, you need to select the Paint Brush Tool.

To select the Paint Brush Tool just press 'B' on the keyboard a few times until you see the Brush on its own icon.

 

Dear can you tell me more about the color replacement brush tool and what it is intended for ?

[MEB]

Hi Uncle Mez,
It does what it says on the thin (although colour here really means Hue). It lets you replace one color with another. See clip below for an example:

 

[R C-R]

2 hours ago, MEB said:

... although colour here really means Hue

Which makes me wonder why it was not named Hue Replacement Brush to begin with.... 

[Phily]

@Uncle Mez Thanks! I'll try that one out also...

[TFG]

Hello everyone. My first post here and very (very) much a newbie to Affinity. I've been using the Colour Replacement Brush to change the hue of environment maps that I use in my CAD package. The maps are simple and are either jpg or png format.

I had successfully changed the hue of two or three maps then late yesterday, something stopped working. With the tool selected, I can set the RGB colour values for the brush in the top right-hand panel, but the circle of the brush tool no longer shows that colour - it just remains 'clear'. When I try to apply a hue change, nothing happens.

It looks as though I've inadvertently changed a critical setting. Any ideas what that might be and how I can get the tool working again?

[MEB]

Hi TFG,
Welcome to Affinity Forums
Have you changed the Opacity or Flow of the brush to 0% in the context toolbar?

[TFG]

Hi MEB - thanks for a very quick response

Current settings from the top tool bar, left to right: Width 79px; Opacity 100%; Flow 100%; Hardness 80%; Length 35px; Tolerance 10%. I've tried changing these values but it makes no difference. Could it be something to do with my settings on the Colour tab? What's the significance of the foreground and background colours in the context of the Colour Replacement Brush - should I bring the foreground or background to the fore? That said, I've tried both ways and it doesn't seem to have any effect. Also, the button with the diagonal red line on a white ground?

In Edit>Preferences>User Interface, the only change I've made is to tick "Always show Brush Crosshair", which I found to make precise picking easier.