我在执行Dynamesh 中sub相减的命令时，总会出现memory error的提示错误,以下时出错的提示
this action could not be completed successfuly due to insufficient amount of system memory(RAM). note: Insufficient memory is a result of editing a 3D mesh with highter polygon count than this system is capable of handing.
zbrush will attempt to recover from this error but it may not always be possible . In future sessions, please reduce the density of the edited mesh or increase the amount of available memory.
然后软件就自动关闭了，试过几个电脑都是这样的呢 ，只是什么问题呢？就是内存不足吗？4G的不行 ，得8G还是？
this action could not be completed successfuly due to insufficient amount of system memory(RAM). note: Insufficient memory is a result of editing a 3D mesh with highter polygon count than this system is capable of handing.
zbrush will attempt to recover from this error but it may not always be possible . In future sessions, please reduce the density of the edited mesh or increase the amount of available memory.
然后软件就自动关闭了，试过几个电脑都是这样的呢 ，只是什么问题呢？就是内存不足吗？4G的不行 ，得8G还是？
