[gd_scene load_steps=5 format=2]

[ext_resource path="res://sample.png" type="Texture" id=1]
[ext_resource path="res://white.png" type="Texture" id=2]

[sub_resource type="Shader" id=1]

code = "shader_type canvas_item;

uniform float BarrelPower =1.1;

vec2 distort(vec2 p) 
{

	float angle = p.y / p.x;
	float theta = atan(p.y,p.x);
	float radius = pow(length(p), BarrelPower);
	
	p.x = radius * cos(theta);
	p.y = radius * sin(theta);
	
	return 0.5 * (p + vec2(1.0,1.0));
}
void fragment()
{
	
vec2 xy = SCREEN_UV * 2.0;
xy.x -= 1.0;
xy.y -= 1.0;

float d = length(xy);
if(d < 1.5){
	xy = distort(xy);
}
else{
	xy = SCREEN_UV;
}
COLOR = textureLod(SCREEN_TEXTURE,xy,0);
}



"

[sub_resource type="ShaderMaterial" id=2]

render_priority = 0
shader = SubResource( 1 )
shader_param/BarrelPower = 1.1
_sections_unfolded = [ "shader_param" ]

[node name="Control" type="Control" index="0"]

anchor_left = 0.0
anchor_top = 0.0
anchor_right = 0.0
anchor_bottom = 0.0
margin_right = 40.0
margin_bottom = 40.0
rect_pivot_offset = Vector2( 0, 0 )
rect_clip_content = false
mouse_filter = 0
mouse_default_cursor_shape = 0
size_flags_horizontal = 1
size_flags_vertical = 1
_sections_unfolded = [ "Rect" ]

[node name="Sprite" type="Sprite" parent="." index="0"]

texture = ExtResource( 1 )
centered = false
_sections_unfolded = [ "Offset" ]

[node name="Shaders" type="Control" parent="." index="1"]

anchor_left = 0.0
anchor_top = 0.0
anchor_right = 0.0
anchor_bottom = 0.0
margin_right = 40.0
margin_bottom = 40.0
rect_pivot_offset = Vector2( 0, 0 )
rect_clip_content = false
mouse_filter = 0
mouse_default_cursor_shape = 0
size_flags_horizontal = 1
size_flags_vertical = 1

[node name="Curvature" type="TextureRect" parent="Shaders" index="0"]

material = SubResource( 2 )
anchor_left = 0.0
anchor_top = 0.0
anchor_right = 0.0
anchor_bottom = 0.0
margin_right = 1024.0
margin_bottom = 600.0
rect_pivot_offset = Vector2( 0, 0 )
rect_clip_content = false
mouse_filter = 1
mouse_default_cursor_shape = 0
size_flags_horizontal = 1
size_flags_vertical = 1
texture = ExtResource( 2 )
expand = true
stretch_mode = 0
_sections_unfolded = [ "Material", "Mouse", "Rect" ]