Help: Texture Edge Pixel Clamp?

[positron]

Is there a way to clamp (repeat) whatever pixels are on the edge of a texture instead of having the texture repeat itself?

I'm using a Ramp shader (box method) to cut a 'window' of transparency through objects, but rather than have the 'window' repeat beyond the borders of the texture, I want it to be transparent throughout.

This seems like a really basic texture thing & something I'm sure I remember doing in other 3D packages. Am I missing something?

A texture map would be unmanageablely huge in this case.

thanks

:sean

[joojaa]

sure just clamp the output ov the uv node.

but in your case just turn of the nodes repeat and make sure the default color is black. And the repaeat is wrap u and v.

BUT one note this will NOT be reflected in the opengl previews on surfaces with uvb texture renges beyon 0 and 1 range! becaus ethets how the ogl handles the situation.