public static kDOPTreeCompact ToCompact(kDOPCollisionTriangle[] oldTriangles, Vector3[] vertices) { var rootBound = new kDopUnCompressedNode { Min = new float[3], Max = new float[3] }; for (int i = 0; i < 3; i++) { rootBound.Max[i] = float.MaxValue; rootBound.Min[i] = -float.MaxValue; } if (oldTriangles.IsEmpty()) { return(new kDOPTreeCompact { RootBound = rootBound, Nodes = new kDOPCompact[0], Triangles = new kDOPCollisionTriangle[0] }); } var buildTriangles = new kDopBuildTriangle[oldTriangles.Length]; for (int i = 0; i < oldTriangles.Length; i++) { kDOPCollisionTriangle oldTri = oldTriangles[i]; buildTriangles[i] = new kDopBuildTriangle(oldTri, vertices[oldTri.Vertex1], vertices[oldTri.Vertex2], vertices[oldTri.Vertex3]); } int numNodes = 0; if (buildTriangles.Length > 5) { numNodes = 1; while ((buildTriangles.Length + numNodes - 1) / numNodes > 10) { numNodes *= 2; } numNodes = 2 * numNodes; } var nodes = new kDopCompressedNode[numNodes]; for (int i = 0; i < numNodes; i++) { nodes[i].Min = new byte[3]; nodes[i].Max = new byte[3]; for (int j = 0; j < 3; j++) { nodes[i].Min[j] = 0; nodes[i].Max[j] = 0; } } Compact(buildTriangles.Length, buildTriangles, numNodes, nodes, ref rootBound); return(new kDOPTreeCompact { RootBound = rootBound, Nodes = nodes.Select(node => (kDOPCompact)node).ToArray(), Triangles = buildTriangles.Select(tri => (kDOPCollisionTriangle)tri).ToArray() }); }
public static StaticMesh ConvertToME3StaticMesh(this SkeletalMesh skeletalMesh) { StaticLODModel lodModel = skeletalMesh.LODModels[0]; uint numVertices = lodModel.NumVertices; var stm = new StaticMesh { Bounds = skeletalMesh.Bounds, BodySetup = new UIndex(0), LODModels = new[] { new StaticMeshRenderData { IndexBuffer = lodModel.IndexBuffer.TypedClone(), NumVertices = numVertices, Edges = new MeshEdge[0], RawTriangles = new StaticMeshTriangle[0], ColorVertexBuffer = new ColorVertexBuffer(), ShadowTriangleDoubleSided = new byte[0], WireframeIndexBuffer = new ushort[0], ShadowExtrusionVertexBuffer = new ExtrusionVertexBuffer { Stride = 4, VertexData = new float[0] }, PositionVertexBuffer = new PositionVertexBuffer { NumVertices = numVertices, Stride = 12, VertexData = new Vector3[numVertices] }, VertexBuffer = new StaticMeshVertexBuffer { bUseFullPrecisionUVs = false, NumTexCoords = 1, NumVertices = numVertices, VertexData = new StaticMeshVertexBuffer.StaticMeshFullVertex[numVertices] }, Elements = lodModel.Sections.Select(sec => { var indices = lodModel.IndexBuffer.Skip((int)sec.BaseIndex).Take(sec.NumTriangles * 3).ToList(); return(new StaticMeshElement { bEnableShadowCasting = true, EnableCollision = true, OldEnableCollision = true, FirstIndex = sec.BaseIndex, NumTriangles = (uint)sec.NumTriangles, MaterialIndex = sec.MaterialIndex, Material = skeletalMesh.Materials[sec.MaterialIndex], Fragments = new FragmentRange[0], MinVertexIndex = indices.Min(), MaxVertexIndex = indices.Max() }); }).ToArray() } }, InternalVersion = 18, LightingGuid = Guid.NewGuid() }; Vector3[] posVertData = stm.LODModels[0].PositionVertexBuffer.VertexData; StaticMeshVertexBuffer.StaticMeshFullVertex[] stmVertData = stm.LODModels[0].VertexBuffer.VertexData; if (lodModel.ME1VertexBufferGPUSkin != null) { for (int i = 0; i < lodModel.ME1VertexBufferGPUSkin.Length; i++) { SoftSkinVertex vert = lodModel.ME1VertexBufferGPUSkin[i]; posVertData[i] = vert.Position; stmVertData[i] = new StaticMeshVertexBuffer.StaticMeshFullVertex { HalfPrecisionUVs = new Vector2DHalf[] { vert.UV }, TangentX = vert.TangentX, TangentZ = vert.TangentZ }; } } else { for (int i = 0; i < lodModel.VertexBufferGPUSkin.VertexData.Length; i++) { GPUSkinVertex vert = lodModel.VertexBufferGPUSkin.VertexData[i]; posVertData[i] = vert.Position; stmVertData[i] = new StaticMeshVertexBuffer.StaticMeshFullVertex { HalfPrecisionUVs = new[] { vert.UV }, TangentX = vert.TangentX, TangentZ = vert.TangentZ }; } } var tris = new kDOPCollisionTriangle[lodModel.IndexBuffer.Length / 3]; for (int i = 0, elIdx = 0, triCount = 0; i < lodModel.IndexBuffer.Length; i += 3, ++triCount) { if (triCount > lodModel.Sections[elIdx].NumTriangles) { triCount = 0; ++elIdx; } tris[i / 3] = new kDOPCollisionTriangle(lodModel.IndexBuffer[i], lodModel.IndexBuffer[i + 1], lodModel.IndexBuffer[i + 2], lodModel.Sections[elIdx].MaterialIndex); } stm.kDOPTreeME3UDK = KDOPTreeBuilder.ToCompact(tris, stm.LODModels[0].PositionVertexBuffer.VertexData); return(stm); }
public kDopBuildTriangle(kDOPCollisionTriangle tri, Vector3 v0, Vector3 v1, Vector3 v2) : this(tri.Vertex1, tri.Vertex2, tri.Vertex3, tri.MaterialIndex, v0, v1, v2) { }
public static kDOPTreeCompact ToCompact(kDOPCollisionTriangle[] oldTriangles, Vector3[] vertices) { var rootBound = new kDOP { Min = new float[3], Max = new float[3] }; for (int i = 0; i < 3; i++) { rootBound.Max[i] = float.MaxValue; rootBound.Min[i] = -float.MaxValue; } if (oldTriangles.IsEmpty()) { return(new kDOPTreeCompact { RootBound = rootBound, Nodes = new kDOPCompact[0], Triangles = new kDOPCollisionTriangle[0] }); } var buildTriangles = new kDopBuildTriangle[oldTriangles.Length]; for (int i = 0; i < oldTriangles.Length; i++) { kDOPCollisionTriangle oldTri = oldTriangles[i]; buildTriangles[i] = new kDopBuildTriangle(oldTri, vertices[oldTri.Vertex1], vertices[oldTri.Vertex2], vertices[oldTri.Vertex3]); } int numNodes = 0; if (buildTriangles.Length > 5) { numNodes = 1; while ((buildTriangles.Length + numNodes - 1) / numNodes > 10) { numNodes *= 2; } numNodes = 2 * numNodes; } var nodes = new kDOPCompact[numNodes]; for (int i = 0; i < numNodes; i++) { nodes[i] = new kDOPCompact(); for (int j = 0; j < 3; j++) { nodes[i].Min[j] = 0; nodes[i].Max[j] = 0; } } rootBound.AddTriangles(buildTriangles, 0, buildTriangles.Length); if (numNodes > 1 && buildTriangles.Length > 1) { nodes[0].SplitTriangleList(0, 0, buildTriangles.Length, buildTriangles, rootBound, nodes); } return(new kDOPTreeCompact { RootBound = rootBound, Nodes = nodes, Triangles = buildTriangles.Select(tri => (kDOPCollisionTriangle)tri).ToArray() }); }