参考Spine的官方代码，我在运行时加载两个SkeletonGraphics，然后将他们的皮肤进行组合，组合过程没有出错，新的组合的皮肤运行也正常，但是我发现组合之后的皮肤的清晰度比原来是降低了不少的，可能是什么原因呢？

        {
            // 确保两个CharacterFigureLoader实例都已加载
            if (playerFigure == null || clothesFigure == null)
            {
                log.Debug("playerFigure或clothesFigure未初始化，无法换装");
                yield break;
            }

            // 等待两个角色加载完成
            while (playerFigure.SkeletonGraphic == null || clothesFigure.SkeletonGraphic == null)
            {
                log.Debug("等待Spine骨骼加载完成...");
                yield return new WaitForSeconds(0.1f);
            }

            log.Debug($"开始换装: skinId={skinId}, skinType={skinType}");

            try
            {
                // 直接使用CharacterFigureLoader中的SkeletonGraphic引用
                Spine.SkeletonData clothesSkeletonData = clothesFigure.SkeletonGraphic.Skeleton.Data;
                Spine.SkeletonData playerSkeletonData = playerFigure.SkeletonGraphic.Skeleton.Data;

                // 从clothesFigure中获取头部皮肤
                Spine.Skin clothesHeadSkin = clothesSkeletonData.FindSkin("tou");
                if (clothesHeadSkin == null)
                {
                    log.Error("无法获取clothesFigure的头部皮肤");
                    yield break;
                }

                // 从playerFigure中获取身体皮肤
                Spine.Skin playerBodySkin = playerSkeletonData.FindSkin("shenti");
                if (playerBodySkin == null)
                {
                    log.Error("无法获取playerFigure的身体皮肤");
                    yield break;
                }

                // 从playerFigure中获取武器皮肤
                Spine.Skin playerWeaponSkin = playerSkeletonData.FindSkin("wuqi");
                if (playerWeaponSkin == null)
                {
                    log.Debug("未找到playerFigure的武器皮肤，尝试使用默认皮肤");
                    // 可以选择继续而不中断流程
                }

                // 创建源材质，用于重新组合皮肤
                Material sourceMaterial = playerFigure.SkeletonGraphic.SkeletonDataAsset.atlasAssets[0].PrimaryMaterial;

                // 创建自定义组合皮肤
                Spine.Skin combinedSkin = new Spine.Skin("combined-skin");

                // 1. 先添加玩家的身体皮肤
                combinedSkin.AddSkin(playerBodySkin);

                // 2. 如果有武器皮肤，也添加进去
                if (playerWeaponSkin != null)
                {
                    combinedSkin.AddSkin(playerWeaponSkin);
                }

                // 3. 添加衣物角色的头部皮肤
                combinedSkin.AddSkin(clothesHeadSkin);

                log.Debug("已创建组合皮肤，准备重新打包");

                // 重新打包皮肤以创建新的纹理图集
                Texture2D runtimeAtlas;
                Material runtimeMaterial;

                Spine.Skin packedSkin = combinedSkin.GetRepackedSkin("combined-repacked",sourceMaterial,out runtimeMaterial,out runtimeAtlas);

                // 应用新的组合皮肤
                playerFigure.SkeletonGraphic.Skeleton.SetSkin(packedSkin);
                playerFigure.SkeletonGraphic.Skeleton.SetSlotsToSetupPose();

                // 更新骨骼图形
                playerFigure.SkeletonGraphic.Update(0);
                playerFigure.SkeletonGraphic.OverrideTexture = runtimeAtlas;
                playerFigure.SkeletonGraphic.AnimationState.Apply(playerFigure.SkeletonGraphic.Skeleton);

                // 清理缓存
                Spine.Unity.AttachmentTools.AtlasUtilities.ClearCache();

                log.Debug("头部换装完成");
            }
            catch (System.Exception e)
            {
                log.Error($"换装过程中发生错误: {e.Message}\n{e.StackTrace}");

                // 尝试恢复到初始状态
                try
                {
                    playerFigure.SkeletonGraphic.Skeleton.SetSkin("all");
                    playerFigure.SkeletonGraphic.Skeleton.SetSlotsToSetupPose();
                    playerFigure.SkeletonGraphic.Update(0);
                }
                catch (System.Exception restoreEx)
                {
                    log.Error($"恢复原始皮肤失败: {restoreEx.Message}");
                }
            }
        }