Un shader de transition entre les scènes

ça fait plus propre braw

shaders/transition_shader.gdshader

@@ -0,0 +1,16 @@
+shader_type canvas_item;
+render_mode unshaded;
+
+uniform float cutoff: hint_range(0.0, 1.0);
+uniform float smooth_size: hint_range(0.0, 0.1);
+uniform sampler2D mask: hint_default_black;
+
+void fragment() {
+    float value = texture(mask, UV).r;
+    float alpha = smoothstep(
+        cutoff,
+        cutoff + smooth_size,
+        value * (1.0 - smooth_size) + smooth_size
+    );
+    COLOR = vec4(COLOR.rgb, alpha);
+}