Support basis universal texture compression

[Yuki001]

Use Case

texture compression

Problem Description

Cocos creator support several texture compression formats，but those formats have big file size. For example ： a 1024 * 1024 image use ASTC 4x4 compression，the file size is about 1MB.

Proposed Solution

Basis universal can compress file to smaller size (~100kb) while the quality is nearly the same. And it supports decoding into several formats for various platforms (ETC,PVRTC,ASTC,RGBA32). Godot has already support Basis universal. Could cocos creator support it?

I've modified custom cocos engine for basisu to replace ASTC 4X4 compression. But it's better if cocos engine support it offical.

How it works

No response

Alternatives Considered

None

Additional Information

No response

[smallmain]

This feels good.

[ymciota]

Do you use basis universal in WeChat games? @Yuki001

[Yuki001]

Do you use basis universal in WeChat games? @Yuki001

Currently i use basis universal on native platform (android, IOS, etc) with some big textures. I've tested it on wechat game, it's a bit slower than ASTC. so I use ASTC6 and ASTC8 on wechat game.