#### NIFF 1.0 Specification

## 3. Binary Format

### 3.11 TriList

#### 8) Reference StData Area

When TRI_ANIM_ST_FULL is specified

u32 | st_group_index(0)
...
u32 | st_group_index(tri_anim_frame_num)

Reference StData Area Memory Map

u32 st_group_index | Index number of StGroup to be referred

When TRI_ANIM_ST_KEY is specified

u32 | st_anim_key_num
u32 | st_anim_key(0)
...
u32 | st_anim_key(st_anim_key_num - 1)
u32 | st_group_index(0)
...
u32 | st_group_index(st_anim_key_num - 1)

Reference StData Area Memory Map

u32 st_anim_key_num | Total number of key frame animation keys
u32 st_anim_key | Key frame value
u32 st_group_index | Index number of StGroup corresponding to key

When ST animation is not performed

u32 | st_group_index

Reference StData Area Memory Map

u32 st_group_index | Index number of StGroup to be referred

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