Commit 6caad914 authored by Screwtape's avatar Screwtape

Update the video settings documentation.

parent c39ef913
......@@ -17,66 +17,100 @@ This tab contains options that affect
how higan displays
the emulated console's video output.
- **Saturation**: adjusts the vibrancy of colours displayed,
**Color Adjustment**
settings adjust the colour and brightness
of the emulated console's video output:
- **Saturation** adjusts the vibrancy of colours displayed,
where 0% makes things pure grey,
100% is normal,
and 200% is garishly brightly coloured.
- **Gamma**: adjusts how bright mid-range colours are
- **Gamma** adjusts how bright mid-range colours are
compared to the brightest colours,
where 100% is normal,
and 200% makes mid-range colours much darker.
- **Luminance**: adjusts the overall brightness,
- **Luminance** adjusts the overall brightness,
where 100% is normal,
and 0% is totally black.
- **Overscan Mask**: hides parts of
the video output that would have been hidden
by the bezel around the edge of
a standard-definition television screen.
Some games (particularly on the Famicom)
displayed random glitchy output in this area,
which can be distracting.
The units are "pixels in the emulated console's standard video-mode".
For example, setting "Horizontal" to 8
will clip 8/256ths from the left and right sides
of the Super Famicom's video output,
whether the Super Famicom is in
lo-res (256px) or hi-res (512px)
mode.
- **Aspect Correction**:
(in both Windowed Mode and Fullscreen Mode)
**Overscan Mask**
removes parts of
the video output that would have been hidden
by the bezel around the edge of
a standard-definition television screen.
- **Horizontal**
removes pixels from the left and right of the video output.
- **Vertical**
removes pixels from the top and bottom of the video output.
Some games (particularly on the Famicom)
displayed random glitchy output in this area,
which can be distracting.
The units are "pixels in the emulated console's standard video-mode".
For example, setting "Horizontal" to 8
will clip 8/256ths from the left and right sides
of the Super Famicom's video output,
whether the Super Famicom is in
lo-res (256px) or hi-res (512px)
mode.
**Windowed Mode**
settings apply when higan is running
in a normal window.
- **Aspect Correction**
stretches the image to match the aspect ratio
produced by the original console hardware,
but can cause a "ripple" effect,
due to rounding errors.
- **Resize Window to Viewport**:
(under "Windowed mode")
causes higan to resize its window
to fit snugly around the emulated console's video
whenever it changes size:
because a game was loaded for a different console
with a different display size or aspect ratio,
because the "Overscan Mask" controls were adjusted,
because the game switched to a different video mode,
because the user pressed the "Rotate Display" hotkey,
etc.
When this option is disabled,
the higan window stays at a fixed size,
large enough to contain the video for any supported console,
padded with black borders for all smaller video modes.
- **Resize Viewport to Window**:
(under "Fullscreen mode")
causes higan to stretch the emulated console's video output
to touch the edges of the screen.
Since most screens are not an exact multiple
of the size of all emulated consoles,
this may cause a "ripple" effect,
but can cause a "ripple" effect
during horizontal scrolling,
due to rounding errors.
When this option is disabled,
higan stretches the emulated console's video output
to the largest exact multiple
of the emulated console's video output
that is smaller than or equal to the screen size.
- TODO: Update this to match 103r11, or whatever the latest version is.
[Video shaders](../guides/shaders.md)
can reduce this effect.
- **Integral Scaling**
makes higan draw the emulated video output
at a whole-number multiple of the original size,
rather than completely filling the available space.
This means that every game pixel
uses the same number of computer pixels,
and avoids graphics looking chunky and uneven.
Note that Aspect Correction
is applied after integral scaling,
so some unevenness may be visible
even with this option enabled.
- **Adaptive Sizing**
automatically resizes the higan window
to fit snugly around the emulated video output
whenever it changes size
(because the user loaded a game for a different console,
chose a different option from
the [Video Scale submenu](higan.md#the-settings-menu),
toggled Aspect Correction, etc.)
When disabled,
higan generally respects manual resizing.
**Fullscreen Mode**
settings apply
when higan was started with the `--fullscreen`
[command-line option](higan-cli.md)
or when the user pressed
the Toggle Fullscreen [hotkey](higan-config.md#hotkeys).
- **Aspect Correction**
behaves the same way as in Windowed mode above.
- **Integral Scaling**
behaves the same way as in Windowed mode above.
- **Exclusive Mode**
requests exclusive access
to the computer's video output
when higan enters fullscreen mode.
This prevents other applications
or the operating system itself
from drawing anything,
and may also temporarily disable any kind of compositing.
As of v104,
only the Direct3D driver is capable of exclusive mode;
with other drivers this option does nothing.
Audio
=====
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