Function getLensDistortionParams

getLensDistortionParams(
    megaShader: LuxarMegaShaderMaterial,
):
    | {
        distortion: Vector2;
        principalPoint: Vector2;
        focalLength: Vector2;
        skew: number;
    }
    | null
Picking-system hook: the same UV transform the mega-shader uses for chromatic lens distortion, exposed so input coordinates can be corrected before lookup. Returns null when distortion is off.

Vector2 values are cloned so a caller mutating the returned object can't accidentally pollute the shader's live uniforms.
Parameters
- megaShader: LuxarMegaShaderMaterial
Returns
    | {
        distortion: Vector2;
        principalPoint: Vector2;
        focalLength: Vector2;
        skew: number;
    }
    | null
- Defined in src/rendering/post-processing/post-processing-manager/settings.ts:222