A sphere tree is first generated. Accessibility values and occlusion angles corresponding to each vertex of a 3D object are calculated according to the sphere tree. A 2D texture and a 5D texture are then generated to store the accessibility values and oc⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި`_x0000_ࠀ_x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި`_x0000_ࠀ_x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި`_x0000_ࠀ_x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި`_x0000_ࠀ_x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި`_x0000_ࠀ_x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ިᆽᕔ≏ᇚᕷ⊇ᇷ،ᖙ⊾ሔؖᖻ⋵ሰ؟ᗞ⌬ቍةᘀ⍤ቪسᘢ⎛ኇؼᙅ⏒ኣنᙧ␉ዀِᚉ⑁ዝٙᚬ⑸ዺ
A sphere tree is first generated. Accessibility values and occlusion angles corresponding to each vertex of a 3D object are calculated according to the sphere tree. A 2D texture and a 5D texture are then generated to store the accessibility values and oc⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި`_x0000_ࠀ_x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި`_x0000_ࠀ_x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި`_x0000_ࠀ_x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި`_x0000_ࠀ_x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި`_x0000_ࠀ_x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ި_x0000__x0000__x0000__x0000__x0000__x0000_₴ި⃀ި⁰ިᆽᕔ≏ᇚᕷ⊇ᇷ،ᖙ⊾ሔؖᖻ⋵ሰ؟ᗞ⌬ቍةᘀ⍤ቪسᘢ⎛ኇؼᙅ⏒ኣنᙧ␉ዀِᚉ⑁ዝٙᚬ⑸ዺ