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Old Version 15

changes.mady.by.user Kristin Ivanova

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New Version 16

changes.mady.by.user Kristina Gaytandzhieva

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Overview

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The VRayMDLMtl material loads NVIDIA Material Definition Language files (.mdl) and renders them directly with V-Ray.

V-Ray supports NVIDIA Material Definition Language, version 1.4.4.

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 The MDL Material does not work within Distributed Rendering at this time.

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titleUI Path: ||Right-click on the geometry|| > Assign New Material...
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||Right-click on the geometry|| > Assign New Material... > VRay section > VRay Mtl MDL


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||V-Ray Shelf|| > Right-click to Create V-Ray Materials button > VRay Mtl MDL

 


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||Hypershade|| > Window tab > Create... > VRay section > VRay Mtl MDL



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Installed Material Library

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4.  Find the folder where Substance Designer keeps its MDL modules (usually C:\Program Files\AllegorithmicAdobe\Adobe Substance 3D Designer 5\resources\view3d\iray\alg but may differ from version to version) and append its path to the same environment variable. 

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VRAY_MDL_PATH_MAYA2018_x64=C:\Program Files\Chaos Group\V-Ray\Maya 2018 for x64\mdl;C:\Program Files\AllegorithmicAdobe\Adobe Substance 3D Designer 5\resources\view3d\iray\alg;X:\MDL

 

Known Limitations

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  • material_emission.mode is ignored
  • material.backface is ignored

  • df::diffuse_transmission_bsdf is not supported

  • df::backscattering_glossy_reflection_bsdf is not supported

  • df::measured_bsdf is not supported

  • From the “alternative distribution functions”, only df::microfacet_ggx_smith_bsdf is implemented

  • df::measured_edf and df::spot_edf are not supported

  • df::anisotropic_vdf is not supported

  • 3D textures are not yet supported

References

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