You could do Filters>Map>Make seamless on your plasma, tho this tends to create a "corner effect". Another possibility would be to use the layer offset (Layer>Transform>Offset and click the button that says X2/Y2)), then carefully add some new plasma with a custom feathered selection over the resulting "cross tile" in the center, then doing the layer offset again to "put everything back" where it was.

There is also something I came across long ago, can't remember where, about creating a "high pass" filter effect that tended to "even out" the relative exposure of tiled textures, this wasn't about making them tile, but mitigating the obviousness of the fact that they were tiled, makeing them appear smoother and more uniform.

--- On Sat, 4/25/09, Chris wrote:

From: Chris
Subject: [Gimp-user] Tilable Plasma? To: gimp-user@lists.XCF.Berkeley.EDU Date: Saturday, April 25, 2009, 1:23 PM I managed to make parchment (with help from a tutorial) by overlaying
grayscale plasma on a tan background. But the image is intended as a tilable
background, so I want the "Tilable" option available on some other "Cloud"
filters, like Solid Noise. So is there any tilable filter which is comparable
to Plasma?

Thanks!

Well, the "evening" I am talking about has to do with the general tonal quality of a tiled texture. Say you have a tileable texture that has a sort of bright "hot spot" in the middle. When you tile it, how you have a pattern with all these "hot spots" and it becomes more obvious that it is a tiled texture.

The "evening" using the high pass filter thing (it's been a couple of years since I found the link), sort of averages the brightness levels of a texture, making it less obvious that it is tiled.

--- On Sat, 4/25/09, Chris wrote:

From: Chris
Subject: [Gimp-user] Tilable Plasma? To: gimp-user@lists.XCF.Berkeley.EDU Date: Saturday, April 25, 2009, 6:59 PM I'm not sure what the "corner effect" you referred to is, but the seamless
option seems to work fine. Although when I experimented with a textual image,
it scattered the text all over the image with different opacities - weird.

Your second option seems too complex for a newbie like me, and I'm not very
clear on what the difference between evening and tiling is. But anyway,
thanks for pointing me to the seamless option!

You could do Filters>Map>Make seamless on your

plasma, tho this tends to
create a "corner effect". Another possibility would be to use the layer
offset (Layer>Transform>Offset and click the button that says X2/Y2)), then
carefully add some new plasma with a custom feathered selection over the
resulting "cross tile" in the center, then doing the layer offset again to
"put everything back" where it was.

There is also something I came across long ago,

can't remember where, about
creating a "high pass" filter effect that tended to "even out" the relative
exposure of tiled textures, this wasn't about making them tile, but mitigating
the obviousness of the fact that they were tiled, makeing them appear smoother
and more uniform.

--- On Sat, 4/25/09, Chris

wrote:

From: Chris
Subject: [Gimp-user] Tilable Plasma? To: gimp-user@lists.XCF.Berkeley.EDU Date: Saturday, April 25, 2009, 1:23 PM I managed to make parchment (with help from a

tutorial) by

overlaying
grayscale plasma on a tan background. But the

image is

intended as a tilable
background, so I want the "Tilable"

option

available on some other "Cloud"
filters, like Solid Noise. So is there any

tilable filter

which is comparable
to Plasma?

Thanks!