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Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
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How to Exclude object from object

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Message 1 of 5
whelectric
343 Views, 4 Replies

How to Exclude object from object

Hi ,there are one sphere and one cube in my scene, I create one plane with emission material as reflector to light cube, but how can I Exclude the sphere from this plane(Reflector)

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Message 2 of 5
Stephen.Blair
in reply to: whelectric

You can use trace sets.

  1. Put the plane in a trace set (for example, "emission")
  2. Put a traceset shader on the sphere

c4dtoa-traceset.png



// Stephen Blair
// Arnold Renderer Support
Message 3 of 5
whelectric
in reply to: whelectric

Hi stephen,well noted thank u so much

Message 4 of 5
whelectric
in reply to: Stephen.Blair

Hi dear 

if there are a lots objects in my scence for example object A1 to A99 , but i hope reflector(Trace_set:"Eimisson") only affect object A1 , so i have to set trace_set shader(exclude "Eimission") on per object from A2-A99 ? 

Message 5 of 5
peter_horvath
in reply to: whelectric


@whelectric wrote:

Hi dear 

if there are a lots objects in my scence for example object A1 to A99 , but i hope reflector(Trace_set:"Eimisson") only affect object A1 , so i have to set trace_set shader(exclude "Eimission") on per object from A2-A99 ? 


If you have to use an emissive material, then I think yes, you have to exclude the trace set per object (A2-A99).

If you can use a mesh light instead, then you can setup light linking on the Project tab where you can Include only the given object (A1).


// Peter Horvath
// C4DtoA developer

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