Texture.streamingMipmapUploadCount

マニュアルに切り替える
public static ulong streamingMipmapUploadCount ;

説明

How many times has a texture been uploaded due to texture mipmap streaming.

Each time the streaming system decides that a different mipmap level should be loaded for a texture, a new read and upload is scheduled. This counts how many uploads has happened since the game started running.