记录Texture压缩格式：Unity5.3AutoCompressed和5.6Low,Normal,High Quality的区别

记录Texture压缩格式：Unity5.3AutoCompressed和5.6Low,Normal,High Quality的区别

RGBA格式的图片

Unity版本

压缩格式

PC

Android

Iphone

5.3

AutoCompressed

DXT5

ETC2 8Bits

PVRTC 4 bits

5.6

LowQuality

DXT5

ETC2 8Bits

PVRTC 2 bits

5.6

NormalQuality

DXT5

ETC2 8Bits

PVRTC 4 bits

5.6

HighQuality

BC7

ETC2 8Bits

PVRTC 4 bits

查看Unity5.5的发行说明：

地址：https://unity3d.com/cn/unity/whats-new/unity-5.5.0

原文：Graphics: Added support for BC4,BC5,BC6,BC7 compressed texture formats, and RGBAHalf format. These formats are supported on PC (DX11+, GL4, Metal) and consoles (PS4, XboxOne).

• BC6H for high quality compressed RGB HDR textures.
• BC7 for high quality compressed RGB(A) textures.
• HDR Textures and Reflection Probes now default to FP16 for uncompressed, and BC6H for compressed textures on PC/console platforms.
• BC7 is chosen automatically by the Texture Importer for textures set up as "High Quality Compressed" on supported platforms (see Texture Importer documentation).
• Note: DX9 and Mac GL do not support BC6/BC7 formats. If a Texture is set as BC6H, it is automatically uncompressed to FP16. If a Texture is set as BC7, it is automatically uncompressed to RGBA8.
• BC4 and BC5 formats can be used manually for single and two-channel texture compression on PC/console platforms. These formats are available even on DX9.