Use these enum flags to specify which elements of a vertex to compress.
Default settings: Position and TexCoord1 are uncompressed because high precision is usually desired. Everything else is compressed to save memory and conserve bandwidth.
| None | Vertex compression disabled. | 
| Position | Position compression enabled. | 
| Normal | Normal compression enabled. | 
| Tangent | Tangent compression enabled. | 
| Color | Color compression enabled. | 
| TexCoord0 | Texture coordinate 0 compression enabled. | 
| TexCoord1 | Texture coordinate 1 compression enabled. | 
| TexCoord2 | Texture coordinate 2 compression enabled. | 
| TexCoord3 | Texture coordinate 3 compression enabled. |