UV Polar Coordinates

This node is already available out of the box Godot. I created a similar node as a tutorial on to defines how it works.

Shader code

shader_type spatial;

uniform vec2 centerCoordinat  = vec2(0.5, 0.5);
uniform float radial_scale : hint_range(0.0, 5.0) = 1.0;
uniform float length_scale : hint_range(0.0, 5.0) = 1.0;
uniform float angle_offset : hint_range(-1.0, 1.0) = 0.0;
uniform float radius_offset : hint_range(-1.0, 1.0) = 0.0;
uniform sampler2D texture_albedo : hint_default_white;

vec2 UVPolarCoordinates(vec2 uv, vec2 center, float radialScale, float lengthScale) {
	vec2 m_delta = uv - center;
	float m_radius = length(m_delta) * 2.0 * radialScale;
	float m_Pi = 6.28318530718;
	float m_angle = atan(m_delta.y, m_delta.x) / (m_Pi * lengthScale);
	return vec2(m_radius, m_angle);
}

void fragment() {
	vec2 polar_uv = UVPolarCoordinates(UV, centerCoordinat, radial_scale, length_scale);
	polar_uv.x += radius_offset;
	polar_uv.y += angle_offset;
	ALBEDO = texture(texture_albedo, polar_uv).xyz;
}

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