How to add own display settings in Rhino 6?

Peter_Salzman · May 4, 2018, 7:49am

Hi!

In Rhino 5 I added a new display setting to my C++ PlugIn. Unfortunately the same code in Rhino 6 seems to have no effect. Here the code snippet:

// I have a new UUID CS_DisplayVariantUUID created before this...
   DisplayAttrsMgrListDesc *pAttrMgrDescCyberstrakDisplay = CRhinoDisplayAttrsMgr::FindDisplayAttrsDesc(CS_DisplayVariantUUID);

   if (!pAttrMgrDescCyberstrakDisplay)
      pAttrMgrDescCyberstrakDisplay = CRhinoDisplayAttrsMgr::AppendNewEntry(true, true, true);
.
.
.
   // try to modify background color
   pAttrMgrDescCyberstrakDisplay->m_pAttrs->m_eFillMode        = FBFM_SOLID_COLOR;
   pAttrMgrDescCyberstrakDisplay->m_pAttrs->m_SolidColor       = ON_Color(70, 60, 80);
.
.
.
   // update attribute manager
   bool bSuccess = CRhinoDisplayAttrsMgr::UpdateAttributes(*pAttrMgrDescCyberstrakDisplay);

I receive bSuccess = true , but the display mode does not appear in the Rhino View Menu like in Rhino 5. While I was able to find my own display mode in the Rhino 5 registry, I do not see it for Rhino 6.

Does it work differently in Rhino 6 ?

Thanks and best regards

Peter

nathanletwory · May 4, 2018, 8:03am

You probably need to save the profile still. Check out the realtime renderer integration sample code here:

github.com

mcneel/rhino-developer-samples/blob/f5451a7b398bfd4b0cabdb91e7f4e7cb295d9440/cpp/SampleRealtimeRenderer/SampleRealtimeRendererPlugIn.cpp#L148




	// TODO: Add plug-in initialization code here.




	// Register display mode factory
	RhRdk::Realtime::DisplayMode::Factory::Register(std::make_unique<CDisplayModeFactory>());


	//// Look if the display mode is already added...
	DisplayAttrsMgrListDesc* pDisplayAttrsMgrListDesc = CRhinoDisplayAttrsMgr::FindDisplayAttrsDesc(DisplayModeId());
	// ... and if it isn't then add it.
	if (0 == pDisplayAttrsMgrListDesc)
	{
		pDisplayAttrsMgrListDesc = CRhinoDisplayAttrsMgr::AppendNewEntry();
		if (0 != pDisplayAttrsMgrListDesc && 0 != pDisplayAttrsMgrListDesc->m_pAttrs)
		{
			// Show it in the drop down menu
			pDisplayAttrsMgrListDesc->m_bAddToMenu = true;


			// Set it's guid, name and pipeline class
			pDisplayAttrsMgrListDesc->m_pAttrs->SetUuid(DisplayModeId());
			pDisplayAttrsMgrListDesc->m_pAttrs->SetName(PlugInName());

Most specifically line 162:

github.com

mcneel/rhino-developer-samples/blob/f5451a7b398bfd4b0cabdb91e7f4e7cb295d9440/cpp/SampleRealtimeRenderer/SampleRealtimeRendererPlugIn.cpp#L162


		{
			// Show it in the drop down menu
			pDisplayAttrsMgrListDesc->m_bAddToMenu = true;


			// Set it's guid, name and pipeline class
			pDisplayAttrsMgrListDesc->m_pAttrs->SetUuid(DisplayModeId());
			pDisplayAttrsMgrListDesc->m_pAttrs->SetName(PlugInName());
			pDisplayAttrsMgrListDesc->m_pAttrs->SetRealtimeDisplayId(DisplayModeId());
			pDisplayAttrsMgrListDesc->m_pAttrs->SetPipeline(&ON_CLASS_RTTI(CRhinoDisplayPipeline_OGL));
			// Save changes
			CRhinoDisplayAttrsMgr::SaveProfile(RhinoApp().ProfileContext());
		}
	}


	return TRUE;
}


void CSampleRealtimeRendererPlugIn::OnUnloadPlugIn()
{
	// Description:
	//    Called one time when plug-in is about to be unloaded. By this time,

Peter_Salzman · May 4, 2018, 9:29am

Thanks, adding this line made it!
I still wonder, why it did work in Rhino 5…

Btw, where is the ProfileContext stored in Rhino 6? I did a search in the registry, where I found it in rhino 5 but it did not show up.

Best

Peter

nathanletwory · May 4, 2018, 9:30am

This is no longer in the registry, but an XML file under %APPDATA%\McNeel\ somewhere.

Peter_Salzman · May 19, 2018, 12:45pm

Hi Nathan,
another question: Is there a call to find out, which of the advanced display settings is currently the active one?
E.g. instead of

DisplayAttrsMgrListDesc *pMyAttrMgrDesc = CRhinoDisplayAttrsMgr::FindDisplayAttrsDesc(MyDisplayModeUUID);

a call like

DisplayAttrsMgrListDesc *pCurrAttrMgrDesc = CRhinoDisplayAttrsMgr::FindCurrentDisplayAttrsDesc();

Many thanks
Peter

nathanletwory · May 19, 2018, 1:19pm

Ask the active view (CRhinoView) for its DisplayAttributes. The CDisplayPipelineAttributes instance gives you the UUID to query with.

Peter_Salzman · May 19, 2018, 2:22pm

Yes, it works.
Thanks you again for the quick response.

Best
Peter