Plane represents a normalized plane equation. Basically, "normal" is the normal of the plane (a,b,c normalized), and "d" is the distance from the origin to the plane (in the direction of "normal"). "Over" or "Above" the plane is considered the side of the plane towards where the normal is pointing.
Creates a plane from the four parameters. The three components of the resulting plane's [member normal] are [code]a[/code], [code]b[/code] and [code]c[/code], and the plane has a distance of [code]d[/code] from the origin.
Returns [code]true[/code] if [code]point[/code] is inside the plane. Comparison uses a custom minimum [code]epsilon[/code] threshold.
</description>
</method>
<methodname="intersect_3">
<returntype="Vector3"/>
<argumentindex="0"name="b"type="Plane"/>
<argumentindex="1"name="c"type="Plane"/>
<description>
Returns the intersection point of the three planes [code]b[/code], [code]c[/code] and this plane. If no intersection is found, [code]null[/code] is returned.
</description>
</method>
<methodname="intersects_ray">
<returntype="Vector3"/>
<argumentindex="0"name="from"type="Vector3"/>
<argumentindex="1"name="dir"type="Vector3"/>
<description>
Returns the intersection point of a ray consisting of the position [code]from[/code] and the direction normal [code]dir[/code] with this plane. If no intersection is found, [code]null[/code] is returned.
</description>
</method>
<methodname="intersects_segment">
<returntype="Vector3"/>
<argumentindex="0"name="begin"type="Vector3"/>
<argumentindex="1"name="end"type="Vector3"/>
<description>
Returns the intersection point of a segment from position [code]begin[/code] to position [code]end[/code] with this plane. If no intersection is found, [code]null[/code] is returned.
</description>
</method>
<methodname="is_equal_approx">
<returntype="bool"/>
<argumentindex="0"name="plane"type="Plane"/>
<description>
Returns [code]true[/code] if this plane and [code]plane[/code] are approximately equal, by running [method @GDScript.is_equal_approx] on each component.
The distance from the origin to the plane, in the direction of [member normal]. This value is typically non-negative.
In the scalar equation of the plane [code]ax + by + cz = d[/code], this is [code]d[/code], while the [code](a, b, c)[/code] coordinates are represented by the [member normal] property.
The normal of the plane, which must be normalized.
In the scalar equation of the plane [code]ax + by + cz = d[/code], this is the vector [code](a, b, c)[/code], where [code]d[/code] is the [member d] property.