sdfTaper

fn sdfTaper(position: vec3<f32>, amount: f32, axis: vec3<f32>, height: f32, offset: f32) -> vec3<f32> {
  let axisNorm = normalize(axis);
  
  // Project position onto the taper axis
  let axisPos = dot(position, axisNorm) - offset;
  
  // Calculate taper factor based on position along axis
  let t = clamp(axisPos / height, 0.0, 1.0);
  let taperFactor = 1.0 - amount * t;
  
  // Apply taper to the perpendicular components
  let axisComponent = axisPos * axisNorm;
  let perpComponent = position - dot(position, axisNorm) * axisNorm;
  
  return axisComponent + perpComponent * taperFactor;
}