Get/SetDParameter + CUSTOMDATATYPE_SPLINE [SOLVED]

On 21/06/2015 at 00:13, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   15+ 
Platform:   Windows  ;   
Language(s) :     C++  ;

---------
as the title says, got a single problem.
data read/write seems ok, as I can change the data as needed, BUT I can't animate the data "shows orange dot instead of red dot",  "all other standard data types like float/int/vector,.. are working ok"

what am I missing?

  
//SetDParameter
myData = t_data;
flags |= DESCFLAGS_SET_PARAM_SET;
//setting parameter  
/*some private code for setting parameter */
return MaterialData::SetDParameter(node, id, t_data, flags);  
  
//GetDParameter
t_data = myData;
flags |= DESCFLAGS_GET_PARAM_GET;  
return MaterialData::GetDParameter(node, id, t_data, flags);

I remember a similar problem happend with Vectors "the solution was using a macro which is setting t_data with id[1].id data, my problem here is HOW to get this id[1].id data???"

an old thread which got the Vectors "solved" problem,
https://plugincafe.maxon.net/topic/8709/11406_show-subchannels-from-getddescription-solved&KW=vector

On 02/07/2015 at 08:48, xxxxxxxx wrote:

Hi Mohamed,

I'm sorry, but I don't fully understand. Normally you don't have to do anything special with a spline datatype in a description, in order to get keyframes working.
I tried it here in the simple_material example and it just worked.

In the video you posted in the other thread, I saw you are trying to use it in the left column of the Material editor. So I tried this in the simple_material example, too. No problem, either.

I did not implement anything in Get/SetDParameter() for my tests.

Perhaps there's some detail I'm missing? Or can you post some more code?

On 02/07/2015 at 09:21, xxxxxxxx wrote:

without Get/SetDParamter() everything is fine, except initial values are black.
Init() can't be used here "as values are added dynamically, so Init() is useless"

how my paramters are created:
user interacts with GeUserArea
parameter is added inside GeUserArea
GeUserArea notifies CustomDataType
this CustomDataType is a Description inside the MaterialData plugin

example:
user rightclick->add Diffuse BSDF-> it will create a Diffuse BSDF node in the user area with the initial values "for example white color"
then these data will get read through Get/SetDParameter(), if I don't use those Get/SetDParamter() initial values are always 0.
what should I do? "I wish to avoid Get/SetDParamter() as they make a headache"

On 03/07/2015 at 06:08, xxxxxxxx wrote:

Can you post some code? If you want to keep it secret, you could also send it to sdk_support or via PM.
I'd also be interested in the Get/SetDParameter() implementation, that broke the keyframes.

On 03/07/2015 at 07:42, xxxxxxxx wrote:

sure, here is some code:
in MaterialData:

  
Bool SevenPhotonsMaterial::GetDParameter(GeListNode* node, const DescID& id, GeData& t_data, DESCFLAGS_GET& flags)
{
	BaseContainer* data = ((BaseMaterial* )node)->GetDataInstance();
	GeData knd(SEVENPHOTONS_NODE_CUSTOMDATATYPE, iSnodeDataType(m_type));
	data->GetParameter(SEVENPHOTONS_MAT_NODE, knd);
	iSnodeDataType* kndData = static_cast<iSnodeDataType*> (knd.GetCustomDataType(SEVENPHOTONS_NODE_CUSTOMDATATYPE));
  
	if(id[0].id == SEVENPHOTONS_MAT_PREVIEW)
	{
		return GetDParameterPreview(data, (GeData* )&t_data, flags, SEVENPHOTONS_MAT_PREVIEW, updatecount, (BaseMaterial* )node);
	}
	else if(kndData->selectedNode > 0)
	{
		if(kndData->nodes[kndData->selectedNode].getInternalCount() > 0)
		{
			for(Int32 i = 0; i < kndData->nodes[kndData->selectedNode].getInternalCount(); ++i)
			{
				Int32 ids = kndData->nodes[kndData->selectedNode].getInternalID(i);
  
				if(id[0].id == ids)
				{
					if(kndData->nodes[kndData->selectedNode].getInternalDataType(i) & SEVENPHOTONS_NODE_ANYTHREE)
					{
						Vector vdata = (kndData->nodes[kndData->selectedNode].getInternalData(i)).GetVector();
						HandleDescGetVector(id, vdata, t_data, flags);
					}
					else if(kndData->nodes[kndData->selectedNode].getInternalDataType(i) == SEVENPHOTONS_NODE_CURVE)
					{
						t_data = kndData->nodes[kndData->selectedNode].getInternalData(i);
						flags |= DESCFLAGS_GET_PARAM_GET;
					}
					else
					{						
						t_data = kndData->nodes[kndData->selectedNode].getInternalData(i);
						//data->SetString(ids, kndData->nodes[kndData->selectedNode].getName());
						flags |= DESCFLAGS_GET_PARAM_GET;
					}
					return MaterialData::GetDParameter(node, id, t_data, flags);
				}
			}
		}
  
		if(kndData->nodes[kndData->selectedNode].getInputCount() > 0)
		{
			for(Int32 i = 0; i < kndData->nodes[kndData->selectedNode].getInputCount(); ++i)
			{
				Int32 ids = kndData->nodes[kndData->selectedNode].getInputID(i);
				//wire connected
				if(kndData->nodes[kndData->selectedNode].getInputWireId(i) >= 0)
					continue;
  
				if(id[0].id == ids)
				{
					if(kndData->nodes[kndData->selectedNode].getInputDataType(i) & SEVENPHOTONS_NODE_ANYTHREE)
					{
						Vector vdata = (kndData->nodes[kndData->selectedNode].getInputData(i)).GetVector();
						HandleDescGetVector(id, vdata, t_data, flags);
					}
					else
					{						
						t_data = kndData->nodes[kndData->selectedNode].getInputData(i);
						//data->SetString(ids, kndData->nodes[kndData->selectedNode].getName());
						flags |= DESCFLAGS_GET_PARAM_GET;
					}
					return MaterialData::GetDParameter(node, id, t_data, flags);
				}
			}
		}
	}
  
	return MaterialData::GetDParameter(node, id, t_data, flags);
}
  
Bool SevenPhotonsMaterial::SetDParameter(GeListNode* node, const DescID& id, const GeData& t_data, DESCFLAGS_SET& flags)
{
	BaseContainer* data = ((BaseMaterial* )node)->GetDataInstance();
	GeData knd(SEVENPHOTONS_NODE_CUSTOMDATATYPE, iSnodeDataType(m_type));
	data->GetParameter(SEVENPHOTONS_MAT_NODE, knd);
	iSnodeDataType* kndData = static_cast<iSnodeDataType*> (knd.GetCustomDataType(SEVENPHOTONS_NODE_CUSTOMDATATYPE));
  
	updatecount++;
  
	if(id[0].id == SEVENPHOTONS_MAT_PREVIEW)
	{
		return SetDParameterPreview(data, &t_data, flags, SEVENPHOTONS_MAT_PREVIEW);
	}
	else if(kndData->selectedNode > 0)
	{
		//if(id[0].id == ++ids)
		//{
		//	kndData->nodes[kndData->selectedNode].setName(t_data.GetString());
		//	kndData->nodes[kndData->selectedNode].adjustSNode(false);
		//	data->SetParameter(SEVENPHOTONS_MAT_NODE, GeData(SEVENPHOTONS_NODE_CUSTOMDATATYPE, *kndData));
		//	return MaterialData::SetDParameter(node, id, t_data, flags);
		//}
		if(kndData->nodes[kndData->selectedNode].getInternalCount() > 0)
		{
			for(Int32 i = 0; i < kndData->nodes[kndData->selectedNode].getInternalCount(); ++i)
			{
				Int32 ids = kndData->nodes[kndData->selectedNode].getInternalID(i);
  
				if(id[0].id == ids)
				{
					if(kndData->nodes[kndData->selectedNode].getInternalDataType(i) & SEVENPHOTONS_NODE_ANYTHREE)
					{
						Vector vdata = (kndData->nodes[kndData->selectedNode].getInternalData(i)).GetVector();
						HandleDescSetVector(vdata, id, vdata, t_data, flags);
						kndData->nodes[kndData->selectedNode].setInternalData(i, GeData(vdata));
					}
					else if(kndData->nodes[kndData->selectedNode].getInternalDataType(i) == SEVENPHOTONS_NODE_CURVE)
					{
						kndData->nodes[kndData->selectedNode].setInternalData(i, t_data);
						flags |= DESCFLAGS_SET_PARAM_SET;
					}
					else
					{						
						kndData->nodes[kndData->selectedNode].setInternalData(i, t_data);
						flags |= DESCFLAGS_SET_PARAM_SET;
					}
					data->SetParameter(SEVENPHOTONS_MAT_NODE, GeData(SEVENPHOTONS_NODE_CUSTOMDATATYPE, *kndData));
					return MaterialData::SetDParameter(node, id, t_data, flags);
				}
			}
		}
  
		if(kndData->nodes[kndData->selectedNode].getInputCount() > 0)
		{
			for(Int32 i = 0; i < kndData->nodes[kndData->selectedNode].getInputCount(); ++i)
			{
				Int32 ids = kndData->nodes[kndData->selectedNode].getInputID(i);
				//wire connected
				if(kndData->nodes[kndData->selectedNode].getInputWireId(i) >= 0)
					continue;
  
				if(id[0].id == ids)
				{
					if(kndData->nodes[kndData->selectedNode].getInputDataType(i) & SEVENPHOTONS_NODE_ANYTHREE)
					{
						Vector vdata = (kndData->nodes[kndData->selectedNode].getInputData(i)).GetVector();
						HandleDescSetVector(vdata, id, vdata, t_data, flags);
						kndData->nodes[kndData->selectedNode].setInputData(i, vdata);
					}
					else
					{						
						kndData->nodes[kndData->selectedNode].setInputData(i, t_data);
						flags |= DESCFLAGS_SET_PARAM_SET;
					}
					data->SetParameter(SEVENPHOTONS_MAT_NODE, GeData(SEVENPHOTONS_NODE_CUSTOMDATATYPE, *kndData));
					return MaterialData::SetDParameter(node, id, t_data, flags);
				}
			}
		}
	}
  
	return MaterialData::SetDParameter(node, id, t_data, flags);
}  

tell me which portions you want, as I guess GeUserArea and CustomDataType portions are not needed here.

I will post more code soon if needed.

On 04/07/2015 at 09:54, xxxxxxxx wrote:

I noticed that if I remove Get/SetDParamter() , I can't access the modified data, so I have to use them.

On 10/07/2015 at 09:09, xxxxxxxx wrote:

Hi Mohamed,

terribly sorry, this took so long. I have to admit, I went down the wrong road all the way to the end, before I realized, I took the wrong branch. My fault!
In Germany we say: Shooting yourself into your own knee. :wink:

Also I have no clean example code to post here, yet. But before entering my weekend, I still wanted to provide you some infos.

Basically you were right in the beginning with your assumption, that it's similar to handling a vector. Unfortunately there's no macro nor any defines for the CUSTOMGUI_SPLINE.
Here's how you do it manually:
After checking, that your spline got addressed (id[0].id == your spline id), you need to check if id[1].id.
If it is zero, t_data is of type CUSTOMDATATYPE_SPLINE. So you get a complete updated spline.
If it is unequal zero, then you need to handle the "subchannels".
If the id[1].id is greater 10000, you can use this:

Int32 knotIdx = (id[1].id - 11100) / 100;
Int32 partIdx = id[1].id - (11100 + (knotIdx * 100));

knotIdx can be used directly with GetKnot().
partIdx decodes as follows:
0: position x
1: position y
2: left tangent x
3: left tangent y
4: right tangent x
5: right tangent y

I hope this helps. On Monday I will probably post some more code. Also there are more subchannels (that's why > 10000).

On 10/07/2015 at 09:54, xxxxxxxx wrote:

great
about decoding partIdx, is this bit masks? (1 << 0, 1 << 1, ...) or just Int32 values?
also waiting for all subchannels, the same for Gradient "as it is very similar, it has its post though"

thanks for the help Andreas.

On 10/07/2015 at 22:46, xxxxxxxx wrote:

Hi Mohamed,

no, it's not a bit mask, just integer. And the data you get is of type Float.

On 28/07/2015 at 17:45, xxxxxxxx wrote:

Hi Andreas,

I tried to fix the spline Get/SetDParameter, but this is a nightmare...
there are a lot of unknown description ids "not shown by show sub-channels"

any idea how to iterate over all sub channels and set/get as required?
here is what I did so far, works fine to some extent "tangents and point count are making a problem, if you animate point count the behavior is undefined"

  
inline void HandleDescGetSpline(const DescID &tid, SplineData *curve, GeData &t_data, DESCFLAGS_GET &flags)
{
	Int32 knotIdx = (tid[1].id - 11100) / 100;
	Int32 partIdx = tid[1].id - (11100 + (knotIdx * 100));
  
	CustomSplineKnot* knot = curve->GetKnot(knotIdx);
	switch(partIdx)
	{
	default:
	case 0:
		t_data.SetFloat(knot->vPos.x);
		flags |= DESCFLAGS_GET_PARAM_GET;
		break;
	case 1:
		t_data.SetFloat(knot->vPos.y);
		flags |= DESCFLAGS_GET_PARAM_GET;
		break;
	case 2:
		t_data.SetFloat(knot->vTangentLeft.x);
		flags |= DESCFLAGS_GET_PARAM_GET;
		break;
	case 3:
		t_data.SetFloat(knot->vTangentLeft.y);
		flags |= DESCFLAGS_GET_PARAM_GET;
		break;
	case 4:
		t_data.SetFloat(knot->vTangentRight.x);
		flags |= DESCFLAGS_GET_PARAM_GET;
		break;
	case 5:
		t_data.SetFloat(knot->vTangentRight.y);
		flags |= DESCFLAGS_GET_PARAM_GET;
		break;
	}
}
  
inline void HandleDescSetSpline(const DescID &tid, SplineData *curve, const GeData &t_data, DESCFLAGS_SET &flags)
{
	Int32 knotIdx = (tid[1].id - 11100) / 100;
	Int32 partIdx = tid[1].id - (11100 + (knotIdx * 100));
  
	CustomSplineKnot* knot = curve->GetKnot(knotIdx);
	switch(partIdx)
	{
	default:
	case 0:
		knot->vPos.x = t_data.GetFloat();
		flags |= DESCFLAGS_SET_PARAM_SET;
		break;
	case 1:
		knot->vPos.y = t_data.GetFloat();
		flags |= DESCFLAGS_SET_PARAM_SET;
		break;
	case 2:
		knot->vTangentLeft.x = t_data.GetFloat();
		flags |= DESCFLAGS_SET_PARAM_SET;
		break;
	case 3:
		knot->vTangentLeft.y = t_data.GetFloat();
		flags |= DESCFLAGS_SET_PARAM_SET;
		break;
	case 4:
		knot->vTangentRight.x = t_data.GetFloat();
		flags |= DESCFLAGS_SET_PARAM_SET;
		break;
	case 5:
		knot->vTangentRight.y = t_data.GetFloat();
		flags |= DESCFLAGS_SET_PARAM_SET;
		break;
	}
}  

  
						else if(kndData->nodes[mnode].getInternalDataType(i) == SEVENPHOTONS_NODE_CURVE)
						{
							if(id[1].id == 0)
							{
								kndData->nodes[mnode].setInternalData(i, t_data);
								data->SetParameter(DescID(id[0].id), t_data);
								flags |= DESCFLAGS_SET_PARAM_SET;
							}
							else if(id[1].id == 1000)
							{
								//kndData->nodes[mnode].setInternalData(i, GeData(1.f));
								//data->SetParameter(DescID(id[0].id, id[1].id), GeData(1.f));
								//flags |= DESCFLAGS_SET_PARAM_SET;
							}
							else
							{
								//SplineData *curve = (SplineData* )t_data.GetCustomDataType(CUSTOMDATATYPE_SPLINE);
								SplineData *curve = (SplineData* )(kndData->nodes[mnode].getInternalData(i)).GetCustomDataType(CUSTOMDATATYPE_SPLINE);
								HandleDescSetSpline(id, curve, t_data, flags);
							}
						}  

  
						else if(kndData->nodes[mnode].getInternalDataType(i) == SEVENPHOTONS_NODE_CURVE)
						{
							if(id[1].id == 0)
							{
								t_data = GeData(CUSTOMDATATYPE_SPLINE, *(kndData->nodes[mnode].getInternalData(i)).GetCustomDataType(CUSTOMDATATYPE_SPLINE));
								flags |= DESCFLAGS_GET_PARAM_GET;
							}
							else if(id[1].id == 1000)
							{
								//t_data.SetFloat(1.f);
								//flags |= DESCFLAGS_GET_PARAM_GET;
							}
							else
							{
								SplineData *curve = (SplineData* )(kndData->nodes[mnode].getInternalData(i)).GetCustomDataType(CUSTOMDATATYPE_SPLINE);
								HandleDescGetSpline(id, curve, t_data, flags);
							}
						}  

On 25/08/2015 at 08:56, xxxxxxxx wrote:

By now, there's an example on GitHub, demonstrating this.

On 25/08/2015 at 10:09, xxxxxxxx wrote:

thanks Andreas, is it the same?

On 26/08/2015 at 08:53, xxxxxxxx wrote:

To explain Mohamed's question: We were in direct communication and he received the example before it got published on GitHub.
@Mohamed: Yes, it's basically the same.