Skinned meshes that are exported to DAE replace the initial skinless mesh that is created by AssImp. Also corrected an error that resulted in skinned exported meshes having no materials, and an error in MAT3 loading that caused an incorrect value to be used for determining the number of NBTScale structs in the material data.

Author: Sage-of-Mirrors

SuperBMD/source/BMD/MAT3.cs

@@ -72,7 +72,12 @@ public MAT3(EndianBinaryReader reader, int offset)
                 int nextOffset = reader.PeekReadInt32();
                 int sectionSize = 0;
 
-                if (nextOffset == 0)
+                if (i == Mat3OffsetIndex.NBTScaleData)
+                {
+
+                }
+
+                if (nextOffset == 0 && i != Mat3OffsetIndex.NBTScaleData)
                 {
                     long saveReaderPos = reader.BaseStream.Position;
 

SuperBMD/source/Model.cs

@@ -173,7 +173,7 @@ public void ExportAssImp(string fileName, string modelType, ExportSettings setti
             }
 
             AssimpContext cont = new AssimpContext();
-            cont.ExportFile(outScene, fileName, "collada", PostProcessSteps.ValidateDataStructure);
+            cont.ExportFile(outScene, fileName, "collada", PostProcessSteps.ValidateDataStructure | PostProcessSteps.JoinIdenticalVertices);
 
             if (SkinningEnvelopes.Weights.Count == 0)
                 return; // There's no skinning information, so we can stop here
@@ -200,7 +200,7 @@ public void ExportAssImp(string fileName, string modelType, ExportSettings setti
 
                     if (Joints.FlatSkeleton.Exists(x => x.Name == name))
                     {
-                        string jointLine = line.Replace(">", $" sid=\"{ name }\" type=\"JOINT\">\n");
+                        string jointLine = line.Replace(">", $" sid=\"{ name }\" type=\"JOINT\">");
                         test.WriteLine(jointLine);
                         test.Flush();
                     }
@@ -214,22 +214,27 @@ public void ExportAssImp(string fileName, string modelType, ExportSettings setti
                 {
                     foreach (Mesh mesh in outScene.Meshes)
                     {
-                        test.WriteLine($"<node id=\"{ mesh.Name }\" name=\"{ mesh.Name }\" type=\"NODE\">");
-
-                        test.WriteLine($"<instance_controller url=\"#{ mesh.Name }-skin\">");
-                        test.WriteLine("<skeleton>#skeleton_root</skeleton>");
-                        test.WriteLine("</instance_controller>");
-
-                        test.WriteLine("</node>");
+                        test.WriteLine($"      <node id=\"{ mesh.Name }\" name=\"{ mesh.Name }\" type=\"NODE\">");
+
+                        test.WriteLine($"       <instance_controller url=\"#{ mesh.Name }-skin\">");
+                        test.WriteLine("        <skeleton>#skeleton_root</skeleton>");
+                        test.WriteLine("        <bind_material>");
+                        test.WriteLine("         <technique_common>");
+                        test.WriteLine($"          <instance_material symbol=\"theresonlyone\" target=\"#m{ mesh.MaterialIndex }mat\" />");
+                        test.WriteLine("         </technique_common>");
+                        test.WriteLine("        </bind_material>");
+                        test.WriteLine("       </instance_controller>");
+
+                        test.WriteLine("      </node>");
                         test.Flush();
                     }
 
                     test.WriteLine(line);
                     test.Flush();
                 }
-                else if (line.Contains("<matrix") && !line.Contains("//"))
+                else if (line.Contains("<matrix"))
                 {
-                    string matLine = line.Replace("<matrix>", "<matrix sid=\"matrix\">\n");
+                    string matLine = line.Replace("<matrix>", "<matrix sid=\"matrix\">");
                     test.WriteLine(matLine);
                     test.Flush();
                 }
@@ -239,6 +244,12 @@ public void ExportAssImp(string fileName, string modelType, ExportSettings setti
                     test.Flush();
                 }
             }
+
+            test.Close();
+            dae.Close();
+
+            File.Copy(fileName + ".dae", fileName, true);
+            File.Delete(fileName + ".dae");
         }
 
         private void AddControllerLibrary(Scene scene, StreamWriter writer)