1.1.1 update (to be made stable after GZDoom updates):

- Sound overhaul, migrated everything to A_StartSound, new sound channels, CHANF_OVERLAP where needed.
 - Fancy titlemap (two variants, one based on the ps2 menu, one based on the v222 menu).

shaders/glsl/utprotobg.fp

@@ -0,0 +1,22 @@
+// based on https://www.shadertoy.com/view/Ms2SWW
+
+vec4 ProcessTexel()
+{
+	vec2 uv = vTexCoord.st;
+	vec2 p = 2.*(uv-.5);
+	p.x += sin(timer*.2)*.3;
+	p.y += cos(timer*.2)*.3;
+	float a = atan(p.y,p.x);
+	a += timer*.1;
+	float r = length(p);
+	vec2 ccoord = fract(vec2(.25/r+.1*timer,a/3.14169265)*4.);
+	vec3 col = getTexel(ccoord).rgb;
+	a += .125*3.14159265;
+	ccoord = fract(vec2(.25/r+.05*timer,a/3.14169265)*4.);
+	col += getTexel(ccoord).rgb;
+	col *= vec3(.3,.6,1.);
+	col += pow(max(0.,1.2-r),1.5);
+	col *= vec3(1.,1.2,1.5);
+	col = clamp(col,vec3(0.),vec3(1.));
+	return vec4(col,1.);
+}