## 第3章　バイナリフォーマット

### 3-11. TriList

#### (3)ReferenceVtxDataエリア

(TRI_ANIM_VTX_FULL指定時)

u32 | vtx_group_index(0)
・・・
u32 | vtx_group_index(tri_anim_frame_num)

ReferenceVtxData Area Memory Map(when TRI_ANIM_VTX_FULL is specified)

u32 vtx_group_index | Index number of VtxGroup area to be referred

(TRI_ANIM_VTX_KEY指定時)

u32 | vtx_anim_key_num
u32 | vtx_anim_key(0)
・・・
u32 | vtx_anim_key(vtx_anim_key_num - 1)
u32 | vtx_group_index(0)
・・・
u32 | vtx_group_index(vtx_anim_key_num - 1)

図　ReferenceVtxData Area Memory Map (when TRI_ANIM_VTX_KEY is specified)

u32 vtx_anim_key_num | Total Number of keyframe animation keys.
u32 vtx_anim_key | Key frame value
u32 vtx_group_index | Index number of VtxGroup corresponding to key.

(頂点アニメーションを行わない場合)

u32 | vtx_group_index

ReferenceVtxData Area Memory Map(when vertex animation is not performed)

u32 vtx_group_index | Index number of VtxGroup to be referred

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