If I put down a broad stripe of paint on the canvas, then brush over it with another colour, the two can be mixed together nicely.  But mixing blue and yellow doesn't make green.  Anyone else noticed this?

And on the subject of mixing paint, is there any way I can put down an area of paint and then push it about with an empty brush?  Like using the palette knife, but with a brush tip.  I can't see a way to remove all paint from the brush, it has to have some sort of colour at all times.

Gryshnak

I've just had a play around. I put thinners and pressure on 100%, loading 0%, insta-dry and autoclean both say off, but that means they're on. I think. From the middle of my splodge of normal paint out, it dragged the colour outwards. If you use a colour on your brush, like red, it leaves a small trace of red. White leaves very little.

I turned thinners down, and the brush becomes more whispy, but at 100%, it looks like fuzzy sort of brush strokes. I turned down pressure too now, and I think that the higher your numbers, the more pushing you'll get

Thanks for letting me ramble!

And that it very frustrating- I've just tried mixing blue and yellow. Grrr! 

About the mixing of blue and yellow - I made a few tests on Paint (yes, the one that comes with Windows) and I think they use some kind of dithering algorithm to mix the colors, and that just doesn't work for yellow+blue, maybe because we perceive green in a different way.

 By the way, if you don't know what dithering is:

Dithering is a technique used in computer graphics to create the illusion of color depth in images with a limited color palette (color quantization). In a dithered image, colors not available in the palette are approximated by a diffusion of colored pixels from within the available palette. The human eye perceives the diffusion as a mixture of the colors within it (see color vision). Dithering is analogous to the halftone technique used in printing. Dithered images, particularly those with relatively few colors, can often be distinguished by a characteristic graininess, or speckled appearance. [from: wikipedia ]

The guys at ambient decided to use RGB mixing as it is the way that most people working with computer graphics think. It looks as though they are planning to enable RYB mixing in future releases though ;)

http://www2.ambientdesign.com/forums/viewtopic.php?t=3357

Jet3270:

I've just had a play around. I put thinners and pressure on 100%, loading 0%, insta-dry and autoclean both say off, but that means they're on. I think. From the middle of my splodge of normal paint out, it dragged the colour outwards. If you use a colour on your brush, like red, it leaves a small trace of red. White leaves very little.

I turned thinners down, and the brush becomes more whispy, but at 100%, it looks like fuzzy sort of brush strokes. I turned down pressure too now, and I think that the higher your numbers, the more pushing you'll get

Thanks for letting me ramble!

And that it very frustrating- I've just tried mixing blue and yellow. Grrr! 

Insta-dry and autoclean are off when they say they're off

Insta-dry set to On means that the paint drys straight after you paint it on and so more paint applied on top off it wont mix with it.

With autoclean On, every time you do a stroke of paint it is purely the colour you selected.

With autoclean off, when you paint over another wet bit of paint, it mixes them together. The next strokes are made with this 'dirty' brush and to paint with a clean brush you need to dip it in the cup of water (which pops up bottom right).

 Your signiture paintings cool btw

Thanks Sweeney. Hey those buttons are... confusing...

I'll tinker around. More. But so far here's my lame excuse for a painting: http://i114.photobucket.com/albums/n263/jet3270/mountainabstracthing.jpg 

And thanks :D I'm quite proud that I managed to merge 3 pictures together!

Jet3270:

Thanks Sweeney. Hey those buttons are... confusing...

I'll tinker around. More. But so far here's my lame excuse for a painting: http://i114.photobucket.com/albums/n263/jet3270/mountainabstracthing.jpg 

And thanks :D I'm quite proud that I managed to merge 3 pictures together!

Your first paintings pretty good. When you get used to it I'm sure you'll be able to make cool paintings like the ones in your dA gallery :)

I've been trying to use PhotoShop at work and I'm finding that totally confusing