Neat shader and logo for titlescreen

Graphics/UI/Background.shader

@@ -0,0 +1,63 @@
+// Based on https://www.shadertoy.com/view/XlfGRj by Pablo Roman Andrioli
+// Licensed under MIT
+
+shader_type canvas_item;
+
+render_mode unshaded;
+
+uniform int iterations = 17;
+uniform float formuparam = 0.53;
+uniform int volsteps = 20;
+uniform float stepsize = 0.1;
+uniform float zoom = 0.80;
+uniform float tile = 0.85;
+uniform float speed = 0.001;
+uniform float brightness = 0.0015;
+uniform float darkmatter = 0.300;
+uniform float distfading = 0.730;
+uniform float saturation = 0.850;
+uniform float rotx = 0;
+uniform float roty = 0.001;
+
+void fragment() {
+	vec2 uv = FRAGCOORD.xy * SCREEN_PIXEL_SIZE - 0.5;
+	uv.y *= SCREEN_PIXEL_SIZE.x/SCREEN_PIXEL_SIZE.y;
+	
+	vec3 dir = vec3(uv*zoom, 1.);
+	float time = TIME*speed+.25;
+	
+	float a1=.5+TIME*rotx;
+	float a2=.8+TIME*roty;
+	mat2 rot1=mat2(vec2(cos(a1),sin(a1)),vec2(-sin(a1),cos(a1)));
+	mat2 rot2=mat2(vec2(cos(a2),sin(a2)),vec2(-sin(a2),cos(a2)));
+	dir.xz*=rot1;
+	dir.xy*=rot2;
+	vec3 from=vec3(1.,.5,0.5);
+	from+=vec3(time*2.,time,-2.);
+	from.xz*=rot1;
+	from.xy*=rot2;
+	
+	//volumetric rendering
+	float s=0.1,fade=1.;
+	vec3 v=vec3(0.);
+	for (int r=0; r<volsteps; r++) {
+		vec3 p=from+s*dir*.5;
+		p = abs(vec3(tile)-mod(p,vec3(tile*2.))); // tiling fold
+		float pa,a=pa=0.;
+		for (int i=0; i<iterations; i++) { 
+			p=abs(p)/dot(p,p)-formuparam; // the magic formula
+			a+=abs(length(p)-pa); // absolute sum of average change
+			pa=length(p);
+		}
+		float dm=max(0.,darkmatter-a*a*.001); //dark matter
+		a*=a*a; // add contrast
+		if (r>6) fade*=1.-dm; // dark matter, don't render near
+		//v+=vec3(dm,dm*.5,0.);
+		v+=fade;
+		v+=vec3(s,s*s,s*s*s*s)*a*brightness*fade; // coloring based on distance
+		fade*=distfading; // distance fading
+		s+=stepsize;
+	}
+	v=mix(vec3(length(v)),v,saturation); //color adjust
+	COLOR = vec4(v*.01,1.);
+}

Graphics/UI/logo-temp.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/logo-temp.png-1b1a89dd902da9895257f125fbfe6dd0.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://Graphics/UI/logo-temp.png"
+dest_files=[ "res://.import/logo-temp.png-1b1a89dd902da9895257f125fbfe6dd0.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0

Scenes/Menu.gd

@@ -1,4 +1,32 @@
 extends Control
 
+export var scale = 2 setget set_scale
+export var upThreshold = 1.0/Engine.iterations_per_second
+export var downThreshold = 1.0/30.0
+
+export var delay = 1.0
+
 func _ready():
+	set_scale(scale)
 	$"/root/Music/BGM".play()
+
+func _process(delta):
+	# Give the system time to adjust
+	if delay > 0:
+		delay -= delta
+		return
+	if delta > downThreshold:
+		print("GPU is taking too much (", delta, "s < ", downThreshold, "s), adjusting shader scale")
+		set_scale(scale+1)
+	elif delta < upThreshold and scale > 1:
+		print("GPU is taking it easy (", delta, "s < ", upThreshold, "s), adjusting shader scale")
+		set_scale(scale-1)
+
+func set_scale(val):
+	scale = val
+	$Viewport.size = rect_size / scale
+	$Background.update()
+
+func _on_resized():
+	$Viewport.size = rect_size / scale
+	$Background.update()

Scenes/Menu.tscn

@@ -1,6 +1,27 @@
-[gd_scene load_steps=2 format=2]
+[gd_scene load_steps=6 format=2]
 
 [ext_resource path="res://Scenes/Menu.gd" type="Script" id=1]
+[ext_resource path="res://Graphics/UI/Background.shader" type="Shader" id=2]
+[ext_resource path="res://Graphics/UI/logo-temp.png" type="Texture" id=3]
+
+[sub_resource type="ViewportTexture" id=3]
+viewport_path = NodePath("Viewport")
+
+[sub_resource type="ShaderMaterial" id=4]
+shader = ExtResource( 2 )
+shader_param/iterations = 17
+shader_param/formuparam = 0.53
+shader_param/volsteps = 20
+shader_param/stepsize = 0.1
+shader_param/zoom = 0.8
+shader_param/tile = 0.85
+shader_param/speed = 0.001
+shader_param/brightness = 0.0015
+shader_param/darkmatter = 0.3
+shader_param/distfading = 0.73
+shader_param/saturation = 0.85
+shader_param/rotx = 0.0
+shader_param/roty = 0.001
 
 [node name="Control" type="Control"]
 anchor_right = 1.0
@@ -9,3 +30,37 @@ script = ExtResource( 1 )
 __meta__ = {
 "_edit_use_anchors_": false
 }
+
+[node name="Background" type="TextureRect" parent="."]
+anchor_right = 1.0
+anchor_bottom = 1.0
+texture = SubResource( 3 )
+stretch_mode = 7
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="logo-temp" type="TextureRect" parent="."]
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+margin_left = -250.0
+margin_top = -293.953
+margin_right = 250.0
+margin_bottom = 82.0471
+grow_horizontal = 2
+grow_vertical = 2
+texture = ExtResource( 3 )
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="Viewport" type="Viewport" parent="."]
+size = Vector2( 300, 300 )
+
+[node name="ColorRect" type="ColorRect" parent="Viewport"]
+material = SubResource( 4 )
+anchor_right = 1.0
+anchor_bottom = 1.0
+[connection signal="resized" from="." to="." method="_on_resized"]

export_presets.cfg

@@ -7,7 +7,7 @@ custom_features=""
 export_filter="all_resources"
 include_filter=""
 exclude_filter=""
-export_path="./odyssey.exe"
+export_path="export/odyssey.exe"
 patch_list=PoolStringArray(  )
 script_export_mode=1
 script_encryption_key=""

project.godot

@@ -129,7 +129,7 @@ _global_script_class_icons={
 [application]
 
 config/name="odyssey"
-run/main_scene="res://Scenes/Game.tscn"
+run/main_scene="res://Scenes/Menu.tscn"
 config/icon="res://icon.png"
 
 [autoload]