| Posted by: |  | Benelli |
| Data created: | 3 April 2012 | |
I'm trying to rewrite this example - http://download.autodesk.com/global/docs/3dsmaxsdk2012/en_us/files/GUID-511D17BA-88AE-42EE-9ADD-AED27495EC8-312.htm - using Max.NET. global = Autodesk.Max.GlobalInterface.Instance; inter = global.COREInterface13; IINode node = inter.RootNode; if (node == null) return; IMtl nodeMaterial = node.Mtl; if (nodeMaterial != null) { Mtl material = (Mtl)nodeMaterial; if (material != null) { if (AreEqual(material.ClassID, global.Class_ID.Create((uint)BuiltInClassIDA.DMTL_CLASS_ID, 0))) { StdMat stdMaterial = (StdMat)material; // exception #1 Texmap tmap = (Texmap)nodeMaterial.GetSubTexmap(1); if (tmap != null && ClassIDsAreEqual(tmap.ClassID, global.Class_ID.Create((uint)BuiltInClassIDA.BMTEX_CLASS_ID, 0))) { BitmapTex bitmapTex = (BitmapTex)tmap; // exception #2 StdUVGen uv = (StdUVGen)bitmapTex.UVGen; } } } } AreEqual() function is from this topic: https://www.ephere.com/autodesk/max/forums/general/thread_1015.html But I get similar exceptions here. StdMat stdMaterial = (StdMat)material; line throws: [System.InvalidCastException] = {"Unable to cast object of type 'Autodesk.Max.Wrappers.Mtl' to type 'Autodesk.Max.Wrappers.StdMat'."} BitmapTex bitmapTex = (BitmapTex)tmap; line throws: [System.InvalidCastException] = {"Unable to cast object of type 'Autodesk.Max.Wrappers.Texmap' to type 'Autodesk.Max.Wrappers.BitmapTex'."} And when I set breakpoints there I see that type of material is really just Autodesk.Max.Wrappers.Mtl, but not Autodesk.Max.Wrappers.StdMat. How this problem could be solved? |
