Using viewport as a texture

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:bust_in_silhouette: Asked By tom_mio

I’m following the wiki tutorial using viewport as texture to texture a sphere seamlessly.

But at this point I have a different result from what is show on the tutorial :

enter image description here

Expected result :

enter image description here
enter image description here866×540 44.2 KB

Here’s the viewport ColorRect’s shader code:

shader_type canvas_item;

void fragment() {
    COLOR = vec4(UV.x, UV.y, 0.5, 1.0);
	COLOR.xyz = vec3(sin(UV.x * 3.14159 * 4.0) * cos(UV.y * 3.14159 * 4.0) * 0.5 + 0.5);
}

Would really appreciate if someone could tell me what I’m doing wrong :).