Hello again,

I'm trying to add a UVW Map modifier on my object and change some of the parameters. But I don't seem to be able to get the IParamBlock(2). I'm pretty sure I need IParamBlock and not IParamBlock2 because in the C++ samples they use: "pblock = (IParamBlock*)rtarg" 

I've tried the following but they all return null. NumParamBlocks even returns 0, this doesn't sound good?

var uvmapMod = (IModifier)m_CoreInterface.CreateInstance(SClass_ID.Osm, m_Global.Class_ID.Create(0xf72b1, 0));
var uvmapModContext = m_Global.ModContext.Create(m_Global.Matrix3.Create(true), null, null);

var numrefs2 = uvmapMod.NumRefs; //returns 2
for (int j = 0; j < numrefs2; j++)
{
       IReferenceTarget refTarget = uvmapMod.GetReference(i); //null

       if (refTarget != null && refTarget.SuperClassID == SClass_ID.ParameterBlock2)
       {
               IIParamBlock2 pblock = (IIParamBlock2)refTarget;
               pblock.SetValue(PB_LENGTH, m_CoreInterface.Time, 50.0f, 0);
       }
}

IIParamArray uvmapModParams = uvmapMod.ParamBlock; 
IIParamBlock2 uvmapModpb2 = uvmapMod.GetParamBlockByID(0);
IIParamBlock2 uvmapModpb2_ = uvmapMod.GetParamBlock(0);

So none of the above work when trying it on a uvmap modifier, I've tried a bend modifier which uses paramblock2 and it works, so I'm not sure what I'm doing wrong.

var bendMod = (IModifier)m_CoreInterface.CreateInstance(SClass_ID.Osm, m_Global.Class_ID.Create(0x00010, 0));
IIParamBlock2 iBendParams2 = bendMod.GetParamBlock(0);

Any ideas? 

Thanks,

Vin