DOCS: updates graphics options (3D)

doc/docportal/advanced_topics/configuration_file.rst

@@ -138,6 +138,7 @@ There are many recognized configuration keys. In the table below, each key is ei
 		alsa_port,integer,,Specifies which ALSA port ScummVM uses when using the ALSA music driver (Linux).
 		":ref:`alt_intro <altintro>`",boolean,false,
 		":ref:`altamigapalette <altamiga>`",boolean,false,
+		":ref:`antialiasing <antialiasing>`", integer,0,"0, 2, 4, 8"
 		":ref:`apple2gs_speedmenu <2gs>`",boolean,false,
 		":ref:`aspect_ratio <ratio>`",boolean,false,
 		":ref:`audio_buffer_size <buffer>`",integer,"Calculated based on output sampling frequency to keep audio latency below 45ms.","Overrides the size of the audio buffer. Allowed values:
@@ -370,6 +371,10 @@ There are many recognized configuration keys. In the table below, each key is ei
 		":ref:`platform <platform>`",string,,
 		":ref:`portaits_on <portraits>`",boolean,true,
 		":ref:`prefer_digitalsfx <dsfx>`",boolean,true,
+		":ref:`renderer <renderer>`",string,default," 
+	- opengl
+	- opengl_shaders
+	- software"
 		":ref:`render_mode <render>`",string,default,"
 	- hercGreen
 	- hercAmber
@@ -421,6 +426,7 @@ There are many recognized configuration keys. In the table below, each key is ei
 		":ref:`tts_narrator <ttsnarrator>`",boolean,false,
 		use_cdaudio,boolean,true, "If true, ScummVM uses audio from the game CD."
 		versioninfo,string,,Shows the ScummVM version that created the configuration file.
+		":ref:`vsync <vsync>`",boolean,true,
 		":ref:`window_style <style>`",boolean,true,
 		":ref:`windows_cursors <wincursors>`",boolean,false,
 

doc/docportal/settings/graphics.rst

@@ -25,7 +25,7 @@ All settings can also be changed in the :doc:`../advanced_topics/configuration_f
 .. _gfxmode:
 
 Graphics mode
-	Changes the resolution of the game. For example, a 2x graphics mode will take a 320x200 resolution game and scale it up to 640x400.
+	Changes the resolution of the game, while also selecting which filter is used to scale up the resolution. For example, a 2x graphics mode will take a 320x200 resolution game and scale it up to 640x400.
 
 	*gfx_mode*
 
@@ -65,4 +65,27 @@ Filter graphics
 
 	*filtering*
 
+.. _vsync:
 
+V-Sync in 3D games
+	If ticked, synchronizes the frame rate of a game with the monitor's refresh rate to prevent screen tearing.
+
+	*vsync*
+
+.. _renderer:
+
+Game 3D renderer
+	Changes how a 3D game is rendered. 
+
+	- OpenGL: renders on hardware (uses the GPU)
+	- OpenGL with shaders: renders on hardware with shader support
+	- Software: renders on software (uses the CPU). 
+
+	*renderer*
+
+.. _antialiasing:
+
+3D Anti-aliasing
+	Changes the anti-aliasing method. The number refers to how many samples are taken per pixel; 8x takes 8 samples per pixel and is the most accurate, but is also the most processor-intensive option. 
+
+	*antialiasing*