material-maker/material_maker/preview/preview_2d.tscn

[gd_scene load_steps=4 format=2]

[ext_resource path="res://material_maker/preview/preview_2d.gd" type="Script" id=1]

[sub_resource type="Shader" id=1]

[sub_resource type="ShaderMaterial" id=2]
resource_local_to_scene = true
shader = SubResource( 1 )

[node name="Preview2D" type="ColorRect" groups=[
"preview",
]]
material = SubResource( 2 )
anchor_right = 1.0
anchor_bottom = 1.0
margin_right = -695.0
margin_bottom = -228.0
rect_min_size = Vector2( 64, 64 )
rect_clip_content = true
mouse_filter = 1
size_flags_horizontal = 0
size_flags_vertical = 8
script = ExtResource( 1 )
__meta__ = {
"_edit_use_anchors_": false
}
shader = "uniform vec2 size;

void fragment() {
	float ms = max(size.x, size.y);
	vec2 uv = fract(0.5+1.2*(UV-vec2(0.5))*ms/size.yx);
	float is = min(size.x, size.y)/1.2;
	vec2 m2 = min(fract(uv), 1.0-fract(uv));
	vec4 image = preview_2d(uv);
	vec3 image_with_background = mix(vec3(mod(floor(uv.x*32.0)+floor(uv.y*32.0), 2.0)), image.xyz, image.a);
	float lines_color = 0.5*(cos(5.0*TIME+100.0*(uv.x+uv.y))+1.0);
	COLOR = vec4(mix(image_with_background, vec3(lines_color), step(is*min(m2.x, m2.y), 1.0)), 1.0);
}"
[connection signal="resized" from="." to="." method="on_resized"]