3D layers have Material Options properties, which determine how a 3D layer interacts with light and shadow.

只有3d圖層才有材質(zhì)選項(xiàng)，它決定了3d層如何與燈光和陰影相互作用

Casts Shadows 投影

?Specifies whether a layer casts shadows on other layers. The direction and angle of the shadows are determined by the direction and angle of the light sources. Set Casts Shadows to Only if you want the layer to be invisible but still cast a shadow.

指定圖層是否將投影投射于其他圖層上。投影的方向和角度取決于燈光的方向和角度炼七。如果你希望圖層不可見但仍然投射陰影，請(qǐng)將“set cast shadows”屬性設(shè)置為“only”

Light Transmission 透光率

The percentage of light that shines through the layer, casting the colors of the layer on other layers as a shadow. 0% specifies that no light passes through the layer, casting a black shadow. 100% specifies that the full values of the colors of the shadow-casting layer are projected onto the layer accepting the shadow.

光透過圖層的百分比即為透光率陕悬，將圖層的顏色投射于其他圖層上作為陰影按傅。0表示沒有光透過圖層，投射黑色陰影拼岳。100表示將投影圖層中所有的色值投射到接受陰影的圖層上况芒。

Accepts Shadows 接受陰影

Specifies whether the layer shows shadows cast on it by other layers. In After Effects CS6, an “Only” option is available in Accepts Shadows for when you want to render only a shadow on a layer.

指定圖層是否顯示來自于其他圖層的投影。在cs6版本中耐版，可以選擇only來實(shí)現(xiàn)圖層僅渲染陰影压汪。

Accepts Lights 接受燈光

Specifies whether the color of a layer is affected by light that reaches it. This setting does not affect shadows.

指定圖層中的顏色是否受到燈光的影響，該選項(xiàng)不會(huì)影響陰影虑瀑。

Ambient 環(huán)境

Ambient (nondirectional) reflectivity of the layer. 100% specifies the most reflectivity; 0% specifies no ambient reflectivity.

圖層的環(huán)境反射率滴须。100%表示最大反射率，0表示沒有環(huán)境反射痛侍。

Diffuse 漫射

?Diffuse (omnidirectional) reflectivity of the layer. Applying diffuse reflectivity to a layer is like draping a dull, plastic sheet over it. Light that falls on this layer reflects equally in all directions. 100% specifies the most reflectivity; 0% specifies no diffuse reflectivity.

圖層的慢反射率魔市。將漫反射應(yīng)用到圖層上相當(dāng)于將一個(gè)暗色的塑料片鋪到圖層上。該圖層上的光照會(huì)向各方向均勻反射君丁。100%表示最大反射率将宪，0表示沒有漫反射橡庞。

Specular 鏡面

?Specular (directional) reflectivity of the layer. Specular light reflects from the layer as if from a mirror. 100% specifies the most reflectivity; 0% specifies no specular reflectivity.

圖層的鏡面反射率印蔗。從圖層反射鏡面光就像從鏡子中反射一樣。100%表示最大反射率吧趣。0代表沒有反射耙厚。

Shininess 發(fā)光度

Determines the size of the specular highlight. This value is active only if the Specular setting is greater than zero. 100% specifies a reflection with a small specular highlight. 0% specifies a reflection with a large specular highlight.

決定鏡面高光的尺寸。該數(shù)值僅在鏡面參數(shù)大于0的情況下才會(huì)生效纠拔。100%表示反射產(chǎn)生一個(gè)較小的鏡面高光泛豪。0表示產(chǎn)生一個(gè)較大的鏡面高光侦鹏。

Metal 金屬

The contribution of the layer color to the color of the specular highlight. 100% specifies that the highlight color is the color of the layer. For example, with a Metal value of 100%, an image of a gold ring reflects golden light. 0% specifies that the color of the specular highlight is the color of the light source. For example, a layer with a Metal value of 0% under a white light has a white highlight.

圖層顏色對(duì)鏡面高光所產(chǎn)生的影響程度略水。100%表示高光顏色為圖層顏色。例如metal值為100%渊涝，一張金色戒指會(huì)反射出金色的光跨释。0代表鏡面高光的顏色為光源顏色。例如鳖谈，一張位于白色燈光下metal值為0的圖層會(huì)產(chǎn)生白色的高光。