[問題]有關做場景時的怪問題

[步兵仔阿曙]

各位前輩，我正嘗試用MAYA做一個場景，
但後來打燈時卻發現像這種的怪現像：

我在房間中央set了一個point light，但投射到地下卻變成這個怪影，
而不是呈漸變光暗位... 實在不知為其麼:?:
而且無論我使用任何light，都也會這樣～

而且，這個場景的牆不知為什麼會讓光透過，
即我在房間裡set了一個Light，就算將房間完全密封，
房間外的物件竟然也會被這個light照亮...

請間各位前輩，到底我做錯了什麼呢？多謝指教!!!

[h2o]

第一: 地下系 polygon, right? 咁就系 normal inverse 左.
select 個地下 object, o系 Edit Polygons -> Normal -> Set to face
咁就應該冇問題喇

第二: 支燈有冇 set shadow 先? 如果有的話, 就要 check 個 model 有冇 casts shadows

select 個 object, 然後開 attribute editor, o系 shape node 入面有幾項 bold 左既字, 開個 Render Stats 黎睇下 Casts Shadows 個 checkbox tick 左未

有問題再 post 啦

[johngalliano]

If there are faces with normal reversed, select those faces, then edit polygon --> normal --> reverse, u may need to play with the options if some faces are hard to select.

Another way to correct the normal in some cases is edit polygon
--> Conform. This makes all the face normals pointing the same side (outward or inward) of their corresponding faces, check it with Display --> polygon components -->normal, if all normals are reversed, reverse the whole thing.

Set to face makes ur vertex normal the same with its face normal, it will harden your model's edges but it will not reverse the face normal. But I find it useful to correct the improper direction of the vertex normal which might be the problem of your floor.

Please be sure that u don't confuse face normal with vertex normal.

[步兵仔阿曙]

先感謝兩位的指導，讓我嘗試一下～謝謝!!!