I suggest that FILT witha tmp of 12 takes on a new mode, the if mode.

What does it do?

The if mode for FILT behaves as follows:

- If the incoming BRAY/PHOT's ctype matches the FILT's, it passes through unchanged.

- If the incoming BRAY'PHOT's ctype does not mach the FILT's, it is absorbed.

Why do we need it?

Currently, it is very space-consuming to produce a device that SPRKs something if a BRAY's ctype matches a certain value. (It is, however, easy to make a device that produces a SPRK if a BRAY's ctype does not match - you can set a FILT whose ctype is the negative of the target BRAY, with mode set to XOR.) This is why I am proposing a FILT mode that does just that in one pixel.

@INFINITY-BOI (View Post)

I'm not able to make a 1-wide FILT strip that replicates this does as follows; assuming you can, could you show me?

Your method does not block ALL incoming ctypes of FILT/PHOT. An example of my problem is in id:2522761; what I want is something that blocks all wavelengths of FILT/PHOT except one.

I can't manage to do so and don't think it would be possible with current technology; if you know, show me, in a fashion similar to id:2522761.

@INFINITY-BOI (View Post)

 That's my problem! I can make a wall that allows all wavelengths but one, but I can't make a wall that allows only one wavelength.