winning confetti

assets/shaders/confetti_spin.gdshader

@@ -0,0 +1,15 @@
+shader_type spatial;
+render_mode unshaded, cull_disabled;
+
+uniform float spin_speed = 2.0;
+
+void vertex() {
+	float angle = TIME * spin_speed;
+	vec4 q = vec4(sin(angle), 0.0, 0.0, cos(angle));
+	vec3 temp = cross(q.xyz, VERTEX) + q.w * VERTEX;
+	VERTEX = VERTEX + 2.0 * cross(q.xyz, temp);
+}
+
+void fragment() {
+	ALBEDO = COLOR.rgb;
+}