03-24-2020, 11:56 PM
In the general case you cannot edit the layers simultaneously. But:
1) If you want to apply a geometric transform (rotate, scale, move.. etc...) you can chain-link the layers. Then you apply the transform to one of them and the others are transformed to match.
2) Layers in a Layer group are also handled together for many operations (transform tools...). The layer group can have its own layer mask so editing the mask will change the opacity for the whole group, and you can quickly punch a hole in the whole stack by editting the group's mask.
3) For general color operations (brightness/contrast, color changes, etc...) you can merge your layers into a "sprite sheet" and once done split then back to individual layers. There are scripts for these merge/split operations, such as my own ofn-layer-tiles.When your layers are merged that way, you can also use symmetry painting in tiling mode with a tile size set to the individual sprite size. Then any paint operation on a sprite will be reproduced in real time on the others.
1) If you want to apply a geometric transform (rotate, scale, move.. etc...) you can chain-link the layers. Then you apply the transform to one of them and the others are transformed to match.
2) Layers in a Layer group are also handled together for many operations (transform tools...). The layer group can have its own layer mask so editing the mask will change the opacity for the whole group, and you can quickly punch a hole in the whole stack by editting the group's mask.
3) For general color operations (brightness/contrast, color changes, etc...) you can merge your layers into a "sprite sheet" and once done split then back to individual layers. There are scripts for these merge/split operations, such as my own ofn-layer-tiles.When your layers are merged that way, you can also use symmetry painting in tiling mode with a tile size set to the individual sprite size. Then any paint operation on a sprite will be reproduced in real time on the others.