Add gl_farsee (by Richard Allen)

CHANGELOG

@@ -1,6 +1,10 @@
 Quake II 4.03 to 4.04
 - Change the behavior of hotkey menus to fix some
   strange bugs and memory leaks in the menu system.
+- Add the "gl_farsee" cvar. When set to "1" Quake II
+  renders maps up to 4096x4096 units instead of being
+  limited to 2300x2300. The default is "0". (by Richard
+  Allen)
 
 Quake II 4.02 to 4.03
 - Fix wrong function call in the Quake II file system.

README

@@ -472,4 +472,8 @@ My mod craches at startup.
    the working directory by hand:
      mkdir -p ~/.yq2/$moddir 
 
+Only parts of the maps are rendered!
+ - By default the maximum view distance is 2300 units. You can widen it
+   up to 4096 units by setting "gl_farsee" to "1",
+
 ==============================================================================

src/refresh/header/local.h

@@ -165,6 +165,7 @@ extern int r_viewcluster, r_viewcluster2, r_oldviewcluster, r_oldviewcluster2;
 
 extern cvar_t  *gl_norefresh;
 extern cvar_t  *r_lefthand;
+extern cvar_t  *gl_farsee;
 extern cvar_t  *gl_drawentities;
 extern cvar_t  *gl_drawworld;
 extern cvar_t  *gl_speeds;

src/refresh/r_main.c

@@ -98,6 +98,7 @@ cvar_t  *gl_novis;
 cvar_t  *gl_nocull;
 cvar_t  *gl_lerpmodels;
 cvar_t  *r_lefthand;
+cvar_t  *gl_farsee;
 
 cvar_t  *gl_lightlevel;
 cvar_t  *gl_overbrightbits;
@@ -714,7 +715,11 @@ R_SetupGL ( void )
 	screenaspect = (float) r_newrefdef.width / r_newrefdef.height;
 	qglMatrixMode( GL_PROJECTION );
 	qglLoadIdentity();
+	if (gl_farsee->value == 0) {
 		R_MYgluPerspective( r_newrefdef.fov_y,  screenaspect,  4,  4096 );
+	} else {
+		R_MYgluPerspective( r_newrefdef.fov_y,  screenaspect,  4,  8192 );
+	}
 
 	qglCullFace( GL_FRONT );
 
@@ -933,6 +938,7 @@ void
 R_Register ( void )
 {
 	r_lefthand = ri.Cvar_Get( "hand", "0", CVAR_USERINFO | CVAR_ARCHIVE );
+	gl_farsee = ri.Cvar_Get( "gl_farsee", "0", CVAR_LATCH | CVAR_ARCHIVE );
 	gl_norefresh = ri.Cvar_Get( "gl_norefresh", "0", 0 );
 	gl_fullbright = ri.Cvar_Get( "gl_fullbright", "0", 0 );
 	gl_drawentities = ri.Cvar_Get( "gl_drawentities", "1", 0 );

src/refresh/r_warp.c

@@ -582,9 +582,16 @@ R_MakeSkyVec ( float s, float t, int axis )
 	vec3_t v, b;
 	int j, k;
 
+	if ( gl_farsee->value == 0 ) {
 		b [ 0 ] = s * 2300;
 		b [ 1 ] = t * 2300;
 		b [ 2 ] = 2300;
+	} else {
+		b [ 0 ] = s * 4096;
+		b [ 1 ] = t * 4096;
+		b [ 2 ] = 4096;
+	}
+
 
 	for ( j = 0; j < 3; j++ )
 	{