MSX 1 smoothscroller general purpose engine

It looks like this nemesis 3 level got 1.4 charsets.
Setting xscroll = 0 and yscroll = 0 in the tool sourcecode to turn off the combination tiles, the converter says: bitmap: 5792 bytes. With xscroll = 1 it says 14176 bytes bitmap, that is factor a 2.5 penalty - too wild neighbour tiles combinations puzzeling.

A 3.5 charsets mass was created (all these figures actually without multiplying the 8x scrollsteps).
If you throw megaROM at it, maybe the max 128 chars onscreen limit is hit.
Reducing to 2 pixel scroll wont help the 128 chars limit.
That aside, I would rather snip halve the tiles than to give up full scroll.

But it is not really needed to give up tiles, the way they are glued together horizontaly got to be puzzeled less random. While big stuff is no problem. The fat magenta flower takes just a little more than normal.

The converters shell output, "names(8x8)", this shows the size of the nametable, 11k will write beyond the bload area of the demo. In the megaROM that one will be no issue.

4 pixels

But Genesis gfx scroll 1 pixel out of the box!
Except where genesis itself does clash.

Because 4 pixel scroll does not remove clash. Except the special case of 4 pixels aligned to 4 pixels, screen 3 resolution horizontal. So this wont make a difference to gradius gfx.

But have you already seen how 1 pixel scrollable gradius gfx look like?
click the scrollableSC2.jar converter... yeah!

What remains is that you need to change the puzzle.
If you press space key when mk_conv is finished, you can see the created tiles.
First candidate is that "a couple of green pixels" background tile, just blank it where it got neighbours, that one is minimum change on the original look.

I have updated http://jf.peer.name/msx/demo20120119scrollphoto.zip to make the converter save the gif.

Also, you can drag the picture around with the mouse.

But clicking into the picture will show the original picture, converted to MSX palette.
There is a scanline colormixer in there.
Nemesis maps got so odd palette that the converter may make a mixcolor.

Do you mean the scrollableSC2.jar?
Low comfort coders tool. Do not close window before shell printed "SAVING".

in msxscroll2.java source, after
saveimage(bi, new File("tst_converted.gif"));
you could add
System.exit(0);

run mk.bat to compile it. Then the resulting scrollableSC2.jar is usable as a batch version.

The tools should take insane amounts of tiles, unlikely blocks in there.

A similar looking level could be made if the troublemakers are replaced with a more repetitive pattern.
Well and when I get the nametable compressor done and separate color compression on the bitmap.
It is harsh conditions, but no dead end.

I gonna mail you some pics that work.