function updateSplineTexture( texture, splineCurve, offset = 0 ) {

	const numberOfPoints = Math.floor( TEXTURE_WIDTH * ( TEXTURE_HEIGHT / 4 ) );
	splineCurve.arcLengthDivisions = numberOfPoints / 2;
	splineCurve.updateArcLengths();
	const points = splineCurve.getSpacedPoints( numberOfPoints );
	const frenetFrames = splineCurve.computeFrenetFrames( numberOfPoints, true );

	for ( let i = 0; i < numberOfPoints; i ++ ) {

		const rowOffset = Math.floor( i / TEXTURE_WIDTH );
		const rowIndex = i % TEXTURE_WIDTH;

		let pt = points[ i ];
		setTextureValue( texture, rowIndex, pt.x, pt.y, pt.z, 0 + rowOffset + ( TEXTURE_HEIGHT * offset ) );
		pt = frenetFrames.tangents[ i ];
		setTextureValue( texture, rowIndex, pt.x, pt.y, pt.z, 1 + rowOffset + ( TEXTURE_HEIGHT * offset ) );
		pt = frenetFrames.normals[ i ];
		setTextureValue( texture, rowIndex, pt.x, pt.y, pt.z, 2 + rowOffset + ( TEXTURE_HEIGHT * offset ) );
		pt = frenetFrames.binormals[ i ];
		setTextureValue( texture, rowIndex, pt.x, pt.y, pt.z, 3 + rowOffset + ( TEXTURE_HEIGHT * offset ) );

	}

	texture.needsUpdate = true;

}
Write the curve description to the data texture.

@private
@param {DataTexture} texture - The data texture to write to.
@param {Curve} splineCurve - The curve to describe.
@param {number} offset - Which curve slot to write to.