Supported maya nodes
 addDoubleLinear  yes
 anisotropic  partially
 blendcolors  yes
 blinn  partially
 brownian  partially
 bulge  yes
 bump  yes
 bump3d  yes
 checker  yes
 clamp  yes
 cloth  yes
 cloud  partially
 condition  yes
 contrast  yes
 crater  no
 displacementShader  partially
 distanceBetween  yes
 envFog  no
 envTextureBall  no
  envTextureChrome  no
  envTextureCube  no
  envTextureSky  no
  envTextureSphere  no
 filetexture  partially
 fluidShape  no
 fluidTexture2d  no
 fluidTexture3d  no
 fractal  yes
 gammaCorrect  yes
 granit  no
 grid  yes
 hairTubeShader  no
 hsvToRgb  yes
 lambert  yes
 layered shader
 no
 layered texture
 no
 leather  no
 lightFog  no
 luminance  yes
 marble  partially
 mia_material_x  partially
 mountain  partially
 movie  no
 multiplyDivide  yes
 noise  partially
 ocean  yes
 oceanShader  partially
 particleCloud  no
 particleSampler  partially
 phong  yes
 phongE  no
 place2dtexture  yes
 place3dTexture  yes
 plusMinusAverage  yes
 projection  yes
 psdFile  no
 ramp  yes
 rampShader  partially
 reverse  yes
 rock  no
 samplerInfo
 partially
 shadingMap  no
 snow  yes
 solidFractal  yes
 stucco  no
 surfaceShader  no
 use background
 no
 volumeFog  no
 volumeNoise  yes
 volumeShader  no
 water  no
 wood  yes
   
 pointLight yes
 spotLight yes
 volumeLight yes
 areaLight yes

The term "partially" means that a basic functionality exists but some features are missing.