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1. Lama support will be implemented in a future release:.
   
   
2. In XPU, we support the following SSS models

• • Burley Normalized
  • Exponential Path Traced
  • Non-Exponential Path Traced
    
    subsurfaceSubset is not yet supported

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Lighting

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Lights	RIS	XPU	Notes
Analytic Lights	✅	✅	PxrEnvDaylight, PxrCylinderLight not available; some light parameters not available
Mesh Lights	✅	❌
Light Filters	✅	❌
Light Linking	✅	❌
Scalability to many lights	✅	❌

Notes : 

1. Light Filters & Light Linking are currently not supported
   
   
2. "shot" based lighting features will be available in future releases.  Examples include:
   
   1. Emission Focus
   2. Light groups
   3. Manifold Next Event Estimation
      
      
3. Thin shadows are currently not implemented.
   
   
4. Mesh lights, PxrCylinderLight and PxrEnvDaylight are yet to be supported.
   
   
5.  XPU does not support colour temperature on lights yet. This means the correct colour space won’t be applied when a temperature is converted to an RGB value

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