protected override void SolveInstance(IGH_DataAccess da)
{
base.SolveInstance(da);
Message = "";
// create our code shader
var theshader = new ccl.CodeShader(ccl.Shader.ShaderType.Material);
// determine all nodes used for this shader
var usednodes = UsedNodes(this, da.Iteration);
bool isBg = false;
// add all nodes to the shader
foreach (var n in usednodes)
{
if (n is CyclesNode cn)
{
isBg |= (cn is BSDF.BackgroundNode);
theshader.AddNode(cn.ShaderNode);
}
}
// finalize the shader
theshader.FinalizeGraph();
var xmlgraph = theshader.Xml.Trim().Replace("\n", "").Replace(">", ">\n") + ShaderNode.CreateConnectXml().Trim().Replace("\n", "").Replace(">", ">\n");
var codegraph = theshader.Code.Trim().Replace("\n", "").Replace(";", ";\n") + ShaderNode.CreateConnectCode().Trim().Replace("\n", "").Replace(";", ";\n");
var xmlcode = xmlgraph + "<!--\n" + codegraph + "\n-->";
// Update XmlMaterial with shader.
if (matId.Count() > 0 && xmlgraph.Length > 0)
{
var midx = da.Iteration < matId.Count ? da.Iteration : matId.Count - 1;
if (Rhino.RhinoDoc.ActiveDoc.RenderMaterials.Where(i => i.Id.Equals(matId[midx])).FirstOrDefault() is XmlMaterial m)
{
m.BeginChange(Rhino.Render.RenderContent.ChangeContexts.Program);
m.SetParameter("xmlcode", xmlgraph);
m.EndChange();
if (matId.Count() > 1)
{
Message = "multiple materials set";
}
else
{
Message = m.Name;
}
}
else
{
Message = "NO MATERIAL";
}
}
da.SetData(0, xmlcode);
}
