My first 2D game in Godot 4.4

smoke_explosion/smoke_explosion.gdshader

@@ -0,0 +1,15 @@
+shader_type canvas_item;
+
+uniform sampler2D voronoi_sampler : repeat_enable;
+uniform sampler2D edge_curve;
+uniform float offset = 0.0;
+uniform vec2 texture_offset = vec2(0.0);
+uniform sampler2D color_gradient : source_color;
+
+void fragment() {
+	float voronoi = 1.0 - texture(voronoi_sampler, UV * 0.25 + texture_offset).x;
+	float d = distance(UV, vec2(0.5)) * 2.0;
+	float n_smooth_d = (voronoi * offset) * texture(edge_curve, vec2(d, 0.0)).x;
+	COLOR.a *= step(0.5, n_smooth_d);
+	COLOR.rgb = texture(color_gradient, vec2(n_smooth_d, 0.0)).rgb;
+}