private FBXNode CreateFbxMesh(MeshLodSection section, FBXScene pScene) { FBXMesh fbxMesh = FBXMesh.Create(pScene, section.matName); FBXGeometryElementNormal lGeometryElementNormal = fbxMesh.CreateElementNormal(); lGeometryElementNormal.SetMappingMode(FBXWrapper.MappingMode.eByControlPoint); FBXGeometryElementBinormal lGeometryElementBiNormal = fbxMesh.CreateElementBinormal(); lGeometryElementBiNormal.SetMappingMode(FBXWrapper.MappingMode.eByControlPoint); FBXGeometryElementTangent lGeometryElementTangent = fbxMesh.CreateElementTangent(); lGeometryElementTangent.SetMappingMode(FBXWrapper.MappingMode.eByControlPoint); fbxMesh.InitControlPoints(section.vertices.Count); FBXGeometryElementMaterial lMaterialElement = fbxMesh.CreateElementMaterial(); lMaterialElement.SetMappingMode(FBXWrapper.MappingMode.eByPolygon); lMaterialElement.SetReferenceMode(FBXWrapper.ReferenceMode.eIndexToDirect); FBXGeometryElementUV lUVDiffuseElement = fbxMesh.CreateElementUV(section.matName); lUVDiffuseElement.SetMappingMode(FBXWrapper.MappingMode.eByControlPoint); lUVDiffuseElement.SetReferenceMode(FBXWrapper.ReferenceMode.eIndexToDirect); lUVDiffuseElement.SetIndexArrayCount(section.vertices.Count); for (int j = 0; j < section.vertices.Count; j++) { FBXVector4 position = new FBXVector4(section.vertices[j].position.members[0] * exportScale, section.vertices[j].position.members[1] * exportScale, section.vertices[j].position.members[2] * exportScale, 0); FBXVector4 normal = new FBXVector4(section.vertices[j].normals.members[0], section.vertices[j].normals.members[1], section.vertices[j].normals.members[2], section.vertices[j].normals.members[3]); FBXVector4 textCoords = new FBXVector4(section.vertices[j].texCoords.members[0], (-section.vertices[j].texCoords.members[1] + 1), 0, 0); FBXVector4 bitangent = new FBXVector4(section.vertices[j].biTangents.members[0], section.vertices[j].biTangents.members[1], section.vertices[j].biTangents.members[2], section.vertices[j].biTangents.members[3]); FBXVector4 tangent = new FBXVector4(section.vertices[j].tangents.members[0], section.vertices[j].tangents.members[1], section.vertices[j].tangents.members[2], section.vertices[j].tangents.members[3]); fbxMesh.SetControlPoint(j, position); lGeometryElementNormal.Add(normal); lGeometryElementBiNormal.Add(bitangent); lGeometryElementTangent.Add(tangent); lUVDiffuseElement.Add(textCoords); } for (int j = 0; j < section.indicies.Count; j++) { if (j % 3 == 0) { fbxMesh.EndPolygon(); fbxMesh.BeginPolygon(); } fbxMesh.AddPolygon(section.indicies[j]); } fbxMesh.EndPolygon(); FBXNode lMeshNode = FBXNode.Create(pScene, section.matName); lMeshNode.SetNodeAttribute(fbxMesh); lMeshNode.AddMaterial(pScene, section.matName); return(lMeshNode); }
private FBXNode CreateFbxMesh(MESkeletalMesh mesh, string mname, FBXScene pScene, float exportScale = 1.0f) { MESkeletalMesh.LODModelStruct lod = mesh.LODModels[0]; FBXMesh fbxMesh = FBXMesh.Create(pScene, mname); FBXNode lMeshNode = FBXNode.Create(pScene, mname); lMeshNode.SetNodeAttribute(fbxMesh); FBXGeometryElementTangent lGeometryElementTangent = fbxMesh.CreateElementTangent(); lGeometryElementTangent.SetMappingMode(FBXWrapper.MappingMode.eByControlPoint); FBXGeometryElementMaterial lMaterialElement = fbxMesh.CreateElementMaterial(); lMaterialElement.SetMappingMode(FBXWrapper.MappingMode.eByPolygon); lMaterialElement.SetReferenceMode(FBXWrapper.ReferenceMode.eIndexToDirect); fbxMesh.InitControlPoints(lod.NumVertices); // init UV maps FBXGeometryElementUV[] UVs = new FBXGeometryElementUV[lod.Sections.Count]; for (int s = 0; s < lod.Sections.Count; s++) { string matName = GetMatName(mesh, lod, s); UVs[s] = fbxMesh.CreateElementUV(matName); UVs[s].SetMappingMode(FBXWrapper.MappingMode.eByControlPoint); } // vertices for (int j = 0; j < lod.VertexBufferGPUSkin.Vertices.Count; j++) { var vertex = lod.VertexBufferGPUSkin.Vertices[j]; FBXVector4 position = new FBXVector4(vertex.Position.X * exportScale, -vertex.Position.Y * exportScale, vertex.Position.Z * exportScale, 0); FBXVector4 normal = new FBXVector4(vertex.TangentX, 0, vertex.TangentZ, 0); fbxMesh.SetControlPoint(j, position); lGeometryElementTangent.Add(normal); // uvs for (int s = 0; s < lod.Sections.Count; s++) { var sectionVerts = GetSectionVertices(mesh, 0, s); if (sectionVerts.Contains(j)) { FBXVector4 texCoords = new FBXVector4(vertex.U, 1 - vertex.V, 0, 0); UVs[s].Add(texCoords); } else { UVs[s].Add(new FBXVector4(0, 0, 0, 0)); } } } // faces & mats for (int s = 0; s < lod.Sections.Count; s++) { int chunkId = lod.Sections[s].ChunkIndex; var chunk = lod.Chunks[chunkId]; // mat string matName = GetMatName(mesh, lod, s); lMeshNode.AddMaterial(pScene, matName); // faces for (int j = 0; j < lod.Sections[s].NumTriangles; j++) { int baseI = lod.Sections[s].BaseIndex; fbxMesh.BeginPolygon(s); fbxMesh.AddPolygon(lod.IndexBuffer.Indexes[baseI + j * 3]); fbxMesh.AddPolygon(lod.IndexBuffer.Indexes[baseI + j * 3 + 1]); fbxMesh.AddPolygon(lod.IndexBuffer.Indexes[baseI + j * 3 + 2]); fbxMesh.EndPolygon(); } } return(lMeshNode); }
private FBXNode CreateFbxMesh(MeshLOD lod, FBXScene pScene) { FBXMesh fbxMesh = FBXMesh.Create(pScene, lod.shortName); FBXNode lMeshNode = FBXNode.Create(pScene, lod.shortName); lMeshNode.SetNodeAttribute(fbxMesh); FBXGeometryElementNormal lGeometryElementNormal = fbxMesh.CreateElementNormal(); lGeometryElementNormal.SetMappingMode(FBXWrapper.MappingMode.eByControlPoint); FBXGeometryElementBinormal lGeometryElementBiNormal = fbxMesh.CreateElementBinormal(); lGeometryElementBiNormal.SetMappingMode(FBXWrapper.MappingMode.eByControlPoint); FBXGeometryElementTangent lGeometryElementTangent = fbxMesh.CreateElementTangent(); lGeometryElementTangent.SetMappingMode(FBXWrapper.MappingMode.eByControlPoint); FBXGeometryElementMaterial lMaterialElement = fbxMesh.CreateElementMaterial(); lMaterialElement.SetMappingMode(FBXWrapper.MappingMode.eByPolygon); lMaterialElement.SetReferenceMode(FBXWrapper.ReferenceMode.eIndexToDirect); int verticesCount = lod.GetLODTotalVertCount(); fbxMesh.InitControlPoints(verticesCount); List <FBXGeometryElementUV> UVs = new List <FBXGeometryElementUV>(); for (int i = 0; i < lod.sections.Count; i++) { MeshLodSection section = lod.sections[i]; FBXGeometryElementUV lUVDiffuseElement = fbxMesh.CreateElementUV(section.matName); lUVDiffuseElement.SetMappingMode(FBXWrapper.MappingMode.eByControlPoint); lUVDiffuseElement.SetReferenceMode(FBXWrapper.ReferenceMode.eDirect); UVs.Add(lUVDiffuseElement); } int VertexOffset = 0; for (int i = 0; i < lod.sections.Count; i++) { MeshLodSection section = lod.sections[i]; for (int j = 0; j < section.vertices.Count; j++) { FBXVector4 position = new FBXVector4(section.vertices[j].position.members[0] * exportScale, section.vertices[j].position.members[1] * exportScale, section.vertices[j].position.members[2] * exportScale, 0); FBXVector4 normal = new FBXVector4(section.vertices[j].normals.members[0], section.vertices[j].normals.members[1], section.vertices[j].normals.members[2], section.vertices[j].normals.members[3]); FBXVector4 textCoords = new FBXVector4(section.vertices[j].texCoords.members[0], (-section.vertices[j].texCoords.members[1] + 1), 0, 0); FBXVector4 bitangent = new FBXVector4(section.vertices[j].biTangents.members[0], section.vertices[j].biTangents.members[1], section.vertices[j].biTangents.members[2], section.vertices[j].biTangents.members[3]); FBXVector4 tangent = new FBXVector4(section.vertices[j].tangents.members[0], section.vertices[j].tangents.members[1], section.vertices[j].tangents.members[2], section.vertices[j].tangents.members[3]); fbxMesh.SetControlPoint(VertexOffset + j, position); lGeometryElementNormal.Add(normal); lGeometryElementBiNormal.Add(bitangent); lGeometryElementTangent.Add(tangent); int uvI = 0; foreach (FBXGeometryElementUV uv in UVs) { if (uvI == i) { uv.Add(textCoords); } else { uv.Add(new FBXVector4(0, 0, 0, 0)); } uvI++; } } for (int j = 0; j < section.indicies.Count; j++) { if (j % 3 == 0) { fbxMesh.EndPolygon(); fbxMesh.BeginPolygon(i); } fbxMesh.AddPolygon(VertexOffset + section.indicies[j]); } fbxMesh.EndPolygon(); VertexOffset = VertexOffset + section.vertices.Count; lMeshNode.AddMaterial(pScene, section.matName); } return(lMeshNode); }