Flags to indicate that face normal is used because no smoothing group normal is found.
| Macros | |
| #define | FACE_NORM_A (1<<8) | 
| #define | FACE_NORM_B (1<<9) | 
| #define | FACE_NORM_C (1<<10) | 
| #define | FACE_NORM_MASK 0x0700 | 
| #define FACE_NORM_A (1<<8) | 
| #define FACE_NORM_B (1<<9) | 
| #define FACE_NORM_C (1<<10) | 
| #define FACE_NORM_MASK 0x0700 |