[Scummvm-tracker] [ScummVM] #9751: SCI: GK2: Gabriel Knight PPC Scanlines (was: SCI GK2 Gabriel Knight PPC Scanlines)

[Colin Snover]

#9751: SCI: GK2: Gabriel Knight PPC Scanlines
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  Reporter:  2Mourty           |      Owner:  (none)
      Type:  defect            |     Status:  new
  Priority:  normal            |  Component:  Engine: SCI
Resolution:                    |   Keywords:  sci32
      Game:  Gabriel Knight 2  |
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Changes (by csnover):

 * keywords:   => sci32


Comment:

 Thanks for your report!

 The GOG and Steam versions of GK2 include patches to the game scripts that
 disable black-lined video, so the ScummVM GUI toggle does not do anything
 (the game never requests black-lined video).

 You may try moving/renaming `11.SCR`, `11.HEP`, `34.SCR`, `34.HEP`,
 `36.SCR` and `36.HEP` in the `PATCHES` directory to restore the original
 video playback code, which will make the toggle work, but this isn’t
 really supported and may cause other problems.

 I am still evaluating whether this is something that we can/should deal
 with. Unconditionally forcing black-lined video when the option is enabled
 would incorrectly render if someone chooses to use “little movie” mode,
 and I don’t know if there are other places in the game (or in other SCI32
 games) that intentionally did not use the black-lined video flag even in
 “big movie” mode. Also, games provide brightness boost information in
 conjunction with the black-lined video flag to try to partially mitigate
 the fact that the black lines make the video darker; if the calls don’t
 include brightness information, then the videos will render too darkly if
 we force it on.

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Ticket URL: <https://bugs.scummvm.org/ticket/9751#comment:1>
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