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    How to enable object X-Ray option - C++

    Cinema 4D SDK
    c++ sdk
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    • mfersaouiM
      mfersaoui @Cairyn
      last edited by mfersaoui

      @Cairyn Hi,
      I tryed your solution and it no thing happen. So, to be sure that there no problem in my code I tried with the ID_BASEOBJECT_GENERATOR_FLAG and work without any problem.

      // this work:
      extrudePtr->SetParameter(DescLevel(ID_BASEOBJECT_GENERATOR_FLAG), Bool(false), DESCFLAGS_SET_0);
      
      // this does't work:
      extrudePtr->SetParameter(DescLevel(ID_BASEOBJECT_XRAY), Bool(false), DESCFLAGS_SET_0);
      

      With ID_BASEOBJECT_XRAY nothing happen.

      S 1 Reply Last reply Reply Quote 0
      • S
        spedler @mfersaoui
        last edited by

        Try using the ObjectColorProperties like so:

        	BaseObject *obj;
        	ObjectColorProperties ocp;
        	obj->GetColorProperties(&ocp);
        	ocp.xray = true;
        	obj->SetColorProperties(&ocp);
        
        
        1 Reply Last reply Reply Quote 0
        • r_giganteR
          r_gigante
          last edited by

          Hi mfersaoui,

          I've tested the suggestion provided in a simple test code and it proved to work.

          maxon::Result<void> PC_11804(BaseDocument *doc)
          {
          	if (!doc)
          		return maxon::IllegalArgumentError(MAXON_SOURCE_LOCATION);
          	
          	BaseObject* op = doc->GetActiveObject();
          	
          	if (!op)
          		return maxon::OK;
          	
          	Bool res = op->SetParameter(DescLevel(ID_BASEOBJECT_XRAY), Bool(true), DESCFLAGS_SET::NONE);
          	
          	if (res)
          		DiagnosticOutput("ID_BASEOBJECT_XRAY set on @", maxon::String(op->GetName()));
          	
          	return maxon::OK;
          }
          

          The sole question that pops in my mind... are you attempting to do it in a GVO?

          Cheers, Riccardo

          mfersaouiM 1 Reply Last reply Reply Quote 0
          • mfersaouiM
            mfersaoui @r_gigante
            last edited by

            @r_gigante
            Hi Riccardo, Yes I'm using it inside a GVO.

            mfersaouiM 1 Reply Last reply Reply Quote 0
            • r_giganteR
              r_gigante
              last edited by

              Hi mfersaui, unfortunately Cinema has not been designed to set the X-Ray option directly inside a GVO.

              What I instead recommend is to implement a NodeData::Message and react to MSG_MENUPREPARE.

              Best, Riccardo

              mfersaouiM 1 Reply Last reply Reply Quote 0
              • mfersaouiM
                mfersaoui @r_gigante
                last edited by

                @r_gigante
                Hi Riccardo, Thank you I will try this.
                Best.

                1 Reply Last reply Reply Quote 0
                • mfersaouiM
                  mfersaoui @mfersaoui
                  last edited by mfersaoui

                  @mfersaoui

                  Hi Riccardo,

                  I try to do this in NodeData::Message. that works on the parent op. But how can I apply the X-Ray option on child object of node. because I want to apply the X-Ray only on some of node child objects.

                  Best regards.

                  Bool MyObject::Message(GeListNode* node, Int32 type, void* data)
                  {
                  
                  	switch (type)
                  	{
                  	case (MSG_MENUPREPARE):
                  	{
                  		BaseObject* const op = static_cast<BaseObject*>(node);
                  		
                  		// op.GetCache()->GetDown()
                  
                  		break;
                  	}
                  	}
                  }
                  
                  1 Reply Last reply Reply Quote 0
                  • r_giganteR
                    r_gigante
                    last edited by

                    Hi @mfersaoui, assuming you need to access the object pinned under your generator (actually the children), you should use op->GetDown() not op->GetCache()->GetDown().

                    Best, Riccardo

                    mfersaouiM 1 Reply Last reply Reply Quote 0
                    • mfersaouiM
                      mfersaoui @r_gigante
                      last edited by mfersaoui

                      @r_gigante
                      Hi Riccardo,

                      I have already tested to use op->GetDown(), but this crashing Cinema 4D.
                      See example below:

                      Bool MyObject::Message(GeListNode* node, Int32 type, void* data)
                      {
                      	switch (type)
                      	{
                      		case (MSG_MENUPREPARE):
                      		{
                      			BaseObject* const op = static_cast<BaseObject*>(node);
                      			GePrint(op->GetDown()->GetName());
                      			break;
                      		}
                      	}
                      }
                      
                      r_giganteR 1 Reply Last reply Reply Quote 0
                      • r_giganteR
                        r_gigante @mfersaoui
                        last edited by

                        @mfersaoui before calling any method belonging to a pointer it's highly recommended to check for the pointer validity, so i would rearrange it as

                        BaseObject* const op = static_cast<BaseObject*>(node);
                        if (op->GetDown())
                        	GePrint(op->GetDown()->GetName());
                        break;
                        

                        This might prevent Cinema from crashing.

                        Cheers, R

                        mfersaouiM 1 Reply Last reply Reply Quote 0
                        • mfersaouiM
                          mfersaoui @r_gigante
                          last edited by

                          @r_gigante I try it but nothing happen, it not detect any child object.

                          ferdinandF 1 Reply Last reply Reply Quote 0
                          • ferdinandF
                            ferdinand @mfersaoui
                            last edited by

                            @mfersaoui

                            Hm, stupid question: Does you object have actually any children? The parameter node passed to Message() is the actual GeListNode sitting in your object manager, representing your plugin instance. If this node has no children, this code does not make any sense.

                            Cheers
                            zipit

                            MAXON SDK Specialist
                            developers.maxon.net

                            mfersaouiM 1 Reply Last reply Reply Quote 0
                            • mfersaouiM
                              mfersaoui @ferdinand
                              last edited by mfersaoui

                              @zipit
                              My object contain a lot of child object, it is similar to the SDK Greek Temple Generator Example.

                              1 Reply Last reply Reply Quote 0
                              • ferdinandF
                                ferdinand
                                last edited by ferdinand

                                Well,

                                everything you are showing here suggests ottherwise. It sounds like GeListNode::GetDown() returns the null pointer for your node (which would both explain the crashes and the non-execution of your print statement).

                                Just to clarify again: node is the representation of your plugin instance in the editor, not the the root node of the object graph you did return in your GVO. If you want to access objects in the ouput of your ObjectData plugin GetCache() was the correct approach. But you also have to check the cache for null pointers, since there is no guarantee that any caches have been build when Message() is being executed.

                                Cheers
                                zipit

                                MAXON SDK Specialist
                                developers.maxon.net

                                1 Reply Last reply Reply Quote 0
                                • r_giganteR
                                  r_gigante
                                  last edited by

                                  Hi @mfersaoui, I thought you were referring to objects pinned under the generator and not children in the cache. In this case checking that the cache is valid before attempting to access any of its methods is mandatory.

                                  Last but not least, I think we're running out of options here, cause even attempting to use SpecialEventAdd() / MessageData::CoreMessage() doesn't help too much and leads on some cases to unpredictable results.

                                  Best, Riccardo

                                  1 Reply Last reply Reply Quote 0
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