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When a method is called for all shading plugins, we will use the RixShadingPlugin base class method.

OrderNameCommentGranularityAccess to optionsAccess to RixIntegratorEnvironment
Once per rendering session.


When the first instance of a shading plugin is created.For each plugin.Deprecated.No.
Before the first render and between renders.



When the first instance of a shading plugin is created,

after the plugin's Init() has been called.

For each shading plugin instance.Deprecated.No.
RixLightFactory::CreateLight()At least once for each light plugin instance (*).
When a bxdf plugin instance is created, immediately after
Shortly after RixBxdf::CreateInstanceData() is called.
For each render.
When a render starts.

For each RixProjection.Yes.No.
When a render starts. This method needs to populate
Responsible for filling the RixIntegratorEnvironment structure.For each RixIntegrator.Yes.Writing.
When a render starts (
With the synchronization message k_RenderBegin
.For each plugin.Yes.Yes.
When a render startsOnce per rendering session
Only if CreateInstanceData() returned a non-zero InstanceData::synchronizeHints.For each plugin instance.Yes.Yes.
Once per rendering session.
At the end of the rendering session.
Before unloading the shading plugins.For each plugin.Deprecated.No.


(*) RixLightFactory::CreateInstanceData() will be called once for each light plugin instance. RixLightFactory::CreateLight() will be called once per light plugin instance, per instance of the corresponding light. This is a behavior specific to the RixLight API.