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Hippotizer
Hippotizer

Posts: 34
Is there a simple way to just do the following things:

- Rotate a RGB Input (green nodes) by +-90°
- Add/Sub with saturation/overflow two RGB inputs
- Create Circles/Ellipses

There probably ARE workarounds for these, but please let me know if I missed the simple way..?
Posted: May 29, 2006 9:58 am   Details E-Mail
Vladimir Golovin
Administrator
Posts: 3446
Filters: 55
Quote
Hippotizer wrote:
- Rotate a RGB Input (green nodes) by +-90° - Add/Sub with saturation/overflow two RGB inputs - Create Circles/Ellipses


- Currently no rotation
- Add/Subtract are in development
- No circles/ellipses, but they are planned for future releases (along with Bomber components)

If you need a grid of circles/ellipses, you can use the Tiles component with rounded corners.
Posted: May 29, 2006 10:40 am   Details E-Mail
Hippotizer
Hippotizer

Posts: 34
concerning rotation: a component that could do all of the following (depending on a mode (int) variable) would be useful:

Rotate +90°
col(x,y) = col(y,x)

Rotate -90°
col(x,y) = col(1-y,1-x)

Flip X
col(x,y) = col(1-x,y)

Flip Y
col(x,y) = col(x,1-y)

Flip XY
col(x,y) = col(1-x,1-y)

Mirror X
col(x,y) = (x > 0.5) ? col(0.5-x,y) : col(x,y)

Mirror Y
col(x,y) = (y > 0.5) ? col(x,0.5-y) : col(x,y)

Mirror XY
col(x,y) = ...

concerning Add/Sub: cool, looking forward to it!

concerning circles: yes, I already found this workaround! smile:)
Posted: May 29, 2006 11:15 am   Details E-Mail
Quasimondo
Quasimondo

Posts: 147
Filters: 32
I've found a an easy way to create circles with the help of gradients. The problem with the tiles component is that the minimum amount of circles you get is 4 (AFAIK). I've just submitted the filter to the library, but it will probably take a while until it is approved.

Hmmm - it looks like we need an easy way to exchange filters or filter code. I guess one could probably take the xml file and post it.
Posted: May 29, 2006 11:20 am   Details E-Mail
Quasimondo
Quasimondo

Posts: 147
Filters: 32
BTW - flipping an image in X and/or Y direction is also possible with the current toolset using the powerful offset component with some proper gradients. I've just submitted a demo of this technique. i've also managed to to an arbitrary rotation, but that one needs still a little bit of tweaking.
Posted: May 29, 2006 12:00 pm   Details E-Mail

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