ok.. you want to make those ''smudgy'' stuffs, heres a way off doing tubes with the tool.

part one
make a new image, i prefer pretty big like 1152x864 (size off most wallpapers)

make a new layer, name it ''red'' and make a cloud (filters->render-> umm ye.. the ''cloud''-one, finnish gimp ><) and press the ''turbulence'' and the other box so it looks like this:

now go to layer->color->invert colors and it looks like this:

now comes the part that will make your backgrounds look different.
you must add it some contrast, layer->color->light&contr. and put settings to pretty much like me -100 light, 100 contr. (they should be pretty close to eachother.

now you have to colorize it, layer->color->colorize, i made it a bit lighter and red,

now, duplicate the layer and invert its colors, layer->color->invert

now.. you have 3 layers, background (still empty) the red and the light blue layers, so now you have to copy the red layer and place the layers so that the blue one is under 1 of the red ones.
now put the lightning mode off the red one to difference
and merge them


part 2, tubes

take the smudge tool, and select the 19x19 circle brush (not fuzzy) and start smudging on the blue-red layer, keeping the mouse button down all the time, try to go first vertically and horizonally then just go crazy with it:

ok.. now you have the lines, but if you still think it needs something, inevert the tubed layer and copy the red layer (first colored image here) and place it on top off the tubes, invert it and put the lightning mode to multiply

you can copy the ''multiplyed'' layer and turn it around or flip it horizonally, whatever you want to get a more interesting look
.




this style works well with different colors, image sizes, maybe with brushings, etc etc.
happy tubing :l:

Indeed very nice, and easy to follow tricks.

Thanks for sharing.

regards

^^ i think i posted in wrong tut forum but.. ye i cant move it anywhere

thx for comment

very very goot tut, great background to make, kinda hard to follow with the smudge part, but still great, i made a moderately good sig with it.

thats really good :h:

Good tut, looks quite good

its cool! but i cant get past the "copy layer part"....its good for eople that are good and understand Gimp but since i am new i am haveing trouble


-----------edit------------

ok i did the first part.. i dun really wanna smudge looks ok now...

could you make it a little more detail? Cuz of this one is confuse me.

nevermind what i did ask, i just try to do my best, here it is what i made of

[img]D:\Santiago\New%20Folder\GIMP\GIMP%20Tutorials\Red%20Tube-kind.jpg[/img]

EDIT: just click left and click "View the Image", to see yourself

um................................... http://i18.tinypic.com/33ttk5l.gif