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exo1/shaders/exo1_zexemples_jolies/plasma.gdshader

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+shader_type canvas_item;
+
+void fragment() {
+    vec2 uv = UV;
+    float v = sin(uv.x * 10.0 + TIME) + sin(uv.y * 10.0 + TIME) + sin((uv.x + uv.y) * 10.0 + TIME);
+    float c = (sin(v) + 1.0) / 2.0;
+    COLOR = vec4(vec3(c, c * 0.5, 1.0 - c), 1.0);
+}