Topics in this section本節專題

  • Supported Shaders(Maya) Maya支持的材質

Supported Shaders (Maya)

This document contains all the non-Redshift shaders that we support. With each shader, notable differences between the native dcc implementation and Redshift implementation are also outlined.

這一節的內容包含 Redshift支持的所有非Redshift材質節點。在每個節點的介紹中,三維軟體與Redshift對這一節點處理上的顯著區別被特別標示出來。

For all non-light shaders, we currently support the following Material ports under the Redshift Shading Group Tab:

對於所有非光源節點,我們當前支持Redshfit Shading Group選項卡中的以下埠:

  • Surface表面材質
  • Shadow陰影材質
  • Environment環境材質
  • Photon光子材質
  • Bump Map凹凸材質

Surface

Anisotropic / Blinn / Lambert / Phong /PhongE

The following input parameters are not supported:下面這些輸入參數是不支持的:

  • Ambient Color (Common Material Attributes) 環境顏色(通用材質屬性)
  • Bump Mapping (Common Material Attributes) 凹凸貼圖(通用材質屬性)
  • (Special Effects) 特殊效果
  • (Matt Opacity)遮罩不透明
  • Light Absorbance (Raytrace Options)燈光吸收(光線追蹤選項)
  • Surface Thickness (Raytrace Options)表面厚度(光線追蹤選項)
  • Shadow Attenuation (Raytrace Options)陰影衰減(光線追蹤選項)
  • Chromatic Aberration (Raytrace Options)色差(光線追蹤選項)
  • (Vector Renderer Control)矢量渲染控制

The following output parameters are not supported:下面這些輸出參數是不支持的

  • outGlowColor輸出光暈顏色
  • outMatteOpacity數尺遮罩不透明

Internally the BRDF is translated to the Redshift material Ashikhmin-Shirley model, instead of the native Maya implementation.

這裡強調一下,BRDF被編譯成Redshift材質叫作Ashikhmin-shirley

Model模型,代替一些Maya材質執行。

SurfaceShader

The following parameters are not supported:下面屬性不被Redshift支持:

  • Out Glow Color輸出光暈顏色
  • Out Matte Opacity輸出遮罩不透明

LayeredShader層材質

Due to memory restrictions, only 7 layers are supported.由於顯存限制,僅僅支持7層材質。

2D Textures

Bulge凸起

Checker棋盤格

Cloth布料

File文件

The following parameters are not supported:下面節點屬性Redshift不支持:

  • Filter Type (see Renderer Settings -> Optimizations ->Texture Sampling) (File Attributes)
  • Pre Filter (File Attributes)
  • Pre Filter Radius (File Attributes)
  • Use BOT (File Attributes)
  • Disable File Load (File Attributes)
  • (Interactive Sequence Caching Options)(交互序列緩存選項)
  • (High Dynamic Range Image Preview Options)(高動態圖像預覽選項)
  • (Effects)

Fractal分形噪波

The following parameters are not supported:下面參數Redshift不支持

  • Level Min最小級別
  • Filter Offset過濾偏移

Grid網格

Noise噪波

The following parameters are not supported:下面參數Redshift不支持

  • Level Min最小級別
  • Filter Offset過濾偏移

Placement2d 2D紋理位置節點

The following parameters are not supported:下面參數Redshift不支持:

  • Noise噪波
  • Fast快速

Ramp漸變紋理

Due to memory limitation, Redshift only allows up to 8 ramp 『knots』.由於顯存限制Redshift最多只支持8個Ramp節點。

Two ramp 『Type』s are not currently supported (『Tartan』 and 『UVRamp』).有兩種Ramp類型不被支持(Tartan和UVRamp)

3D Textures 3D紋理

Brownian布朗

The following parameters are not supported:下面參數Redshift不支持:

  • Local局部
  • Filter過濾

SolidFractal固態分形

The following parameters are not supported:下面參數Redshift不支持

  • Local局部
  • Filter過濾

Snow雪

The following parameters are not supported:下面參數Redshift不支持:

  • Local局部
  • Filter過濾

Other Textures其他紋理貼圖

Layered Texture層紋理

Due to memory limitation, Redshift only allows up to 8 texture layers.

由於內存限制,Redshift僅僅支持8層紋理

Environment環境

EnvBall環境球

Utility實用

  • AddDoubleLinear增加雙線性
  • AngleBetween角度
  • BlendColors融合顏色
  • Clamp剪切
  • Condition條件
  • Contrast對比
  • DistanceBetween距離
  • GammaCorrect伽馬校正
  • HSVToRgb HSV轉RGB
  • Luminance亮度
  • MultDoubleLinear多重雙線性
  • MultiplyDivide乘除
  • plusMinusAverage加減平均

Due to memory limitation, Redshift only allows up to 8 items in each array.由於內存限制,Redshift僅僅支持8次矩陣演算法

Projection投射

The following parameters are not supported:下面參數Redshift不支持

  • Local局部
  • Filter, Filter Offset過濾,過濾偏移
  • Blend融合
  • Noise Attributes / Recursion Depth噪波屬性/遞歸深度

When used for displacement or bump mapping, the colorGain/Offset, alphaGain/Offset and defaultColor are not support. Please use the equivalent parameters in the texture node instead.

我們之前經常使用Colorgain/Offset(顏色增益/偏移),AlphaGain/Offset(阿爾法增益/偏移)和DefaultColor(默認顏色)來調節置換或者凹凸貼圖,但是這些參數Redshift不支持,請使用等價的紋裂節點代替。

  • Reverse翻轉
  • RGBToHsv RGB轉HSV
  • VectorProduct矢量乘
  • RemapColor映射顏色
  • RemapHsv映射HSV
  • RemapValue映射亮度值
  • SetRange設置範圍
  • SamplerInfo採樣信息

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