godot-demo-projects/2d/sprite_shaders/sprite_shaders.tscn

[gd_scene load_steps=22 format=2]

[ext_resource path="res://godotea.png" type="Texture" id=1]

[sub_resource type="Shader" id=1]
code = "shader_type canvas_item;

uniform float outline_width = 2.0;
uniform vec4 outline_color : hint_color;

void fragment() {
	vec4 col = texture(TEXTURE, UV);
	vec2 ps = TEXTURE_PIXEL_SIZE;
	float a;
	float maxa = col.a;
	float mina = col.a;

	a = texture(TEXTURE, UV + vec2(0.0, -outline_width) * ps).a;
	maxa = max(a, maxa);
	mina = min(a, mina);

	a = texture(TEXTURE, UV + vec2(0.0, outline_width) * ps).a;
	maxa = max(a, maxa);
	mina = min(a, mina);

	a = texture(TEXTURE, UV + vec2(-outline_width, 0.0) * ps).a;
	maxa = max(a, maxa);
	mina = min(a, mina);

	a = texture(TEXTURE, UV + vec2(outline_width, 0.0) * ps).a;
	maxa = max(a, maxa);
	mina = min(a, mina);

	COLOR = mix(col, outline_color, maxa - mina);
}"

[sub_resource type="ShaderMaterial" id=2]
shader = SubResource( 1 )
shader_param/outline_width = 2.0
shader_param/outline_color = Color( 0, 1, 0.109375, 1 )

[sub_resource type="ShaderMaterial" id=3]

[sub_resource type="ShaderMaterial" id=4]
shader = SubResource( 1 )
shader_param/outline_width = 4.0
shader_param/outline_color = Color( 0, 0, 0, 1 )

[sub_resource type="Shader" id=5]
code = "shader_type canvas_item;
render_mode blend_premul_alpha;

// This shader only works properly with premultiplied alpha blend mode
uniform float aura_width = 2.0;
uniform vec4 aura_color : hint_color;

void fragment() {
	vec4 col = texture(TEXTURE, UV);
	vec2 ps = TEXTURE_PIXEL_SIZE;
	float a;
	float maxa = col.a;
	float mina = col.a;

	a = texture(TEXTURE, UV + vec2(0.0, -aura_width) * ps).a;
	maxa = max(a, maxa);
	mina = min(a, mina);

	a = texture(TEXTURE, UV + vec2(0.0, aura_width) * ps).a;
	maxa = max(a, maxa);
	mina = min(a, mina);

	a = texture(TEXTURE, UV + vec2(-aura_width, 0.0) * ps).a;
	maxa = max(a, maxa);
	mina = min(a, mina);

	a = texture(TEXTURE, UV + vec2(aura_width, 0.0) * ps).a;
	maxa = max(a, maxa);
	mina = min(a, mina);

	col.rgb *= col.a;

	COLOR = col;
	COLOR.rgb += aura_color.rgb * (maxa - mina);
}"

[sub_resource type="ShaderMaterial" id=6]
shader = SubResource( 5 )
shader_param/aura_width = 6.0
shader_param/aura_color = Color( 0.143326, 0.33235, 0.677765, 0.442 )

[sub_resource type="Shader" id=7]
code = "shader_type canvas_item;
render_mode blend_mix;

uniform float radius = 4.0;

void fragment() {
	vec4 col = texture(TEXTURE, UV);
	vec2 ps = TEXTURE_PIXEL_SIZE;

	col += texture(TEXTURE, UV + vec2(0.0, -radius) * ps);
	col += texture(TEXTURE, UV + vec2(0.0, radius) * ps);
	col += texture(TEXTURE, UV + vec2(-radius, 0.0) * ps);
	col += texture(TEXTURE, UV + vec2(radius, 0.0) * ps);
	col /= 5.0;

	COLOR = col;
}"

[sub_resource type="ShaderMaterial" id=8]
shader = SubResource( 7 )
shader_param/radius = 4.0

[sub_resource type="Shader" id=9]
code = "shader_type canvas_item;

render_mode blend_mix;
uniform float fattyness = 2.0;

void fragment() {
	vec2 ruv = UV - vec2(0.5, 0.5);
	vec2 dir = normalize(ruv);
	float len = length(ruv);	

	len = pow(len * 2.0, fattyness) * 0.5;
	ruv = len * dir;

	vec4 col = texture(TEXTURE, ruv + vec2(0.5, 0.5));

	COLOR = col;
}"

[sub_resource type="ShaderMaterial" id=10]
shader = SubResource( 9 )
shader_param/fattyness = 3.0

[sub_resource type="Shader" id=11]
code = "shader_type canvas_item;
render_mode blend_mix;

uniform float radius = 5.0;
uniform vec4  modulate : hint_color;

void fragment() {
	vec2 ps = TEXTURE_PIXEL_SIZE;

	vec4 shadow = texture(TEXTURE, UV + vec2(-radius, -radius) * ps);

	shadow += texture(TEXTURE, UV + vec2(-radius, 0.0) * ps);
	shadow += texture(TEXTURE, UV + vec2(-radius, radius) * ps);
	shadow += texture(TEXTURE, UV + vec2(0.0, -radius) * ps);
	shadow += texture(TEXTURE, UV + vec2(0.0, radius) * ps);
	shadow += texture(TEXTURE, UV + vec2(radius, -radius) * ps);
	shadow += texture(TEXTURE, UV + vec2(radius, 0.0) * ps);
	shadow += texture(TEXTURE, UV + vec2(radius, radius) * ps);
	shadow /= 8.0;
	shadow *= modulate;

	vec4 col = texture(TEXTURE, UV);
	COLOR = mix(shadow, col, col.a);
}"

[sub_resource type="ShaderMaterial" id=12]
shader = SubResource( 11 )
shader_param/radius = 8.0
shader_param/modulate = Color( 0, 0, 0, 0.501961 )

[sub_resource type="Shader" id=13]
code = "shader_type canvas_item;
render_mode blend_mix;

uniform vec2 offset = vec2(8.0, 8.0);
uniform vec4 modulate : hint_color;

void fragment() {
	vec2 ps = TEXTURE_PIXEL_SIZE;

	vec4 shadow = vec4(modulate.rgb, texture(TEXTURE, UV - offset * ps).a * modulate.a);
	vec4 col = texture(TEXTURE, UV);

	COLOR = mix(shadow, col, col.a);
}"

[sub_resource type="ShaderMaterial" id=14]
shader = SubResource( 13 )
shader_param/offset = Vector2( 20, 20 )
shader_param/modulate = Color( 0.90625, 0.269043, 0.746948, 1 )

[sub_resource type="Shader" id=15]
code = "shader_type canvas_item;

render_mode blend_mix;
uniform vec4 modulate : hint_color;

void fragment() {
	COLOR = vec4(modulate.rgb, texture(TEXTURE, UV).a * modulate.a);
}"

[sub_resource type="ShaderMaterial" id=16]
shader = SubResource( 15 )
shader_param/modulate = Color( 1, 0.0234375, 0.481201, 0.596706 )

[sub_resource type="Shader" id=17]
code = "shader_type canvas_item;
render_mode blend_premul_alpha;

uniform float radius = 2.0;
uniform float amount = 0.6;

void fragment() {
	float r = radius;
	vec2 ps = TEXTURE_PIXEL_SIZE;
	vec4 col = texture(TEXTURE, UV);
	vec4 glow = col;

	glow += texture(TEXTURE, UV + vec2(-r, -r) * ps);
	glow += texture(TEXTURE, UV + vec2(-r, 0.0) * ps);
	glow += texture(TEXTURE, UV + vec2(-r, r) * ps);
	glow += texture(TEXTURE, UV + vec2(0.0, -r) * ps);
	glow += texture(TEXTURE, UV + vec2(0.0, r) * ps);
	glow += texture(TEXTURE, UV + vec2(r, -r) * ps);
	glow += texture(TEXTURE, UV + vec2(r, 0.0) * ps);
	glow += texture(TEXTURE, UV + vec2(r, r) * ps);

	r *= 2.0;
	glow += texture(TEXTURE, UV + vec2(-r, -r) * ps);
	glow += texture(TEXTURE, UV + vec2(-r, 0.0) * ps);
	glow += texture(TEXTURE, UV + vec2(-r, r) * ps);
	glow += texture(TEXTURE, UV + vec2(0.0, -r) * ps);
	glow += texture(TEXTURE, UV + vec2(0.0, r) * ps);
	glow += texture(TEXTURE, UV + vec2(r, -r) * ps);
	glow += texture(TEXTURE, UV + vec2(r, 0.0) * ps);
	glow += texture(TEXTURE, UV + vec2(r, r) * ps);

	glow /= 17.0;
	glow *= amount;
	col.rgb *= col.a;

	COLOR = glow + col;
}"

[sub_resource type="ShaderMaterial" id=18]
shader = SubResource( 17 )
shader_param/radius = 12.0
shader_param/amount = 0.5

[sub_resource type="Shader" id=19]
code = "shader_type canvas_item;
render_mode blend_mix;

uniform float amount = 20.0;

void fragment() {
	vec2 uv = UV * 0.05;
	float a = fract(sin(dot(UV, vec2(12.9898, 78.233))) * 438.5453);
	vec4 col = texture(TEXTURE, UV);

	col.a *= pow(a, amount);

	COLOR = col;
}"

[sub_resource type="ShaderMaterial" id=20]
shader = SubResource( 19 )
shader_param/amount = 4.0

[node name="shaders" type="Node2D"]
material = SubResource( 2 )
position = Vector2( 263.737, 179.444 )
scale = Vector2( 0.3, 0.3 )

[node name="normal" type="Sprite" parent="."]
material = SubResource( 3 )
position = Vector2( -2.16144, 0 )
texture = ExtResource( 1 )

[node name="outline" type="Sprite" parent="."]
material = SubResource( 4 )
position = Vector2( 400, 0 )
texture = ExtResource( 1 )

[node name="aura" type="Sprite" parent="."]
material = SubResource( 6 )
position = Vector2( 800, 0 )
texture = ExtResource( 1 )

[node name="blur" type="Sprite" parent="."]
material = SubResource( 8 )
position = Vector2( 1200, 0 )
texture = ExtResource( 1 )

[node name="fatty" type="Sprite" parent="."]
material = SubResource( 10 )
position = Vector2( 1600, 0 )
texture = ExtResource( 1 )

[node name="dropshadow" type="Sprite" parent="."]
material = SubResource( 12 )
position = Vector2( 0, 800 )
texture = ExtResource( 1 )

[node name="offsetshadow" type="Sprite" parent="."]
material = SubResource( 14 )
position = Vector2( 400, 800 )
texture = ExtResource( 1 )

[node name="silouette" type="Sprite" parent="."]
material = SubResource( 16 )
position = Vector2( 800, 800 )
texture = ExtResource( 1 )

[node name="glow" type="Sprite" parent="."]
material = SubResource( 18 )
position = Vector2( 1200, 800 )
texture = ExtResource( 1 )

[node name="dissintegrate" type="Sprite" parent="."]
material = SubResource( 20 )
position = Vector2( 1600, 800 )
texture = ExtResource( 1 )
region_rect = Rect2( 141, 115, 39, 6 )