message: tweak material param
diff: @@ -45,11 +45,11 @@ export namespace Material {
  export function getParam(info?: { isExpanded?: boolean, isFlat?: boolean }) {
  return PD.Converted(
  - (v: Material) => toObjectNormalized(v, 1),
  + (v: Material) => toObjectNormalized(v, 2),
  (v: { metalness: number, roughness: number }) => fromObjectNormalized(v),
  PD.Group({
  - metalness: PD.Numeric(0, { min: 0, max: 1, step: 0.1 }),
  - roughness: PD.Numeric(1, { min: 0, max: 1, step: 0.1 }),
  + metalness: PD.Numeric(0, { min: 0, max: 1, step: 0.01 }),
  + roughness: PD.Numeric(1, { min: 0, max: 1, step: 0.01 }),
  }, info)
  );
  }
  