(05-22-2017, 03:21 AM)sallyanne Wrote: I have only discovered what a few do.
For some people it may be experimenting. For others it may be straight forward and others?
Would like to see what people think/know a layer mode does and the best way to implement it.
1. Dissolve - I found out by experimentation that the dissolve mode works best on feathered selections?
2. Overlay - to give an image the texture in the top image
Dissolve is an interesting mode: instead of blending the mask (top layer) and the image (whatever is below the mask) with standard arithmetic operations like other modes, it draws pixels at random from both, with a probability "weighed" by the opacity of the mask. So where the mask layer is fully opaque the pixels are all from the mask and where it is transparent they are all from the image, and where the mask has a 66% opacity a pixel has two chances our of three to be a copy of the mask pixels and one chance to be a copy of the image one.
Image below:
- bottom layer is white
- top layer is black
- using a white-to-black gradient in the layer mask, the top layer has a varying opacity