Method for reducing computational loading while generating content and host

A host, comprising:

• a non-transitory storage circuit, storing a program code;
• a processor, coupled to the non-transitory storage circuit and accessing the program code to perform:
• obtaining a texture map and a plurality of object texture coordinates, wherein the plurality of object texture coordinates correspond to at least one virtual object in the texture map;
• obtaining a first mesh map corresponding to the texture map;
• determining a first mesh segment and a second mesh segment within the first mesh map based on the plurality of object texture coordinates, wherein the first mesh segment does not correspond to the plurality of object texture coordinates, and the second mesh segment corresponds to the plurality of object texture coordinates;
• modifying the first mesh map into a second mesh map via reducing a first segment area of the first mesh segment;
• and
• a graphic processing unit, coupled to the processor and generating a visual content via performing an asynchronous time warp operation on the texture map based on the second mesh map.