private void ModelUpdated()
{
if (model != null)
{
// Create mesh-per-entity state
meshInfos.Clear();
foreach (var mesh in model.Meshes)
{
var meshData = new MeshInfo();
meshInfos.Add(meshData);
if (mesh.Skinning != null)
{
meshData.BlendMatrices = new Matrix[mesh.Skinning.Bones.Length];
}
}
if (skeleton != null)
{
// Reuse previous ModelViewHierarchy
skeleton.Initialize(model.Skeleton);
}
else
{
skeleton = new SkeletonUpdater(model.Skeleton);
}
}
}
private void ModelUpdated()
{
if (model != null)
{
if (skeleton != null)
{
// Reuse previous ModelViewHierarchy
skeleton.Initialize(model.Skeleton);
}
else
{
skeleton = new SkeletonUpdater(model.Skeleton);
}
}
}
/// <inheritdoc/>
public override void ComputeMatrix(bool recursive, out Matrix matrix)
{
// If model is not in the parent, we might want to force recursive update (since parentModelComponent might not be updated yet)
if (forceRecursive || recursive)
{
parentModelComponent.Entity.Transform.UpdateWorldMatrix();
}
// Updated? (rare slow path)
if (parentModelComponent.Skeleton != skeleton)
{
skeleton = parentModelComponent.Skeleton;
if (skeleton == null)
{
goto failed;
}
// Find our node index
nodeIndex = int.MaxValue;
for (int index = 0; index < skeleton.Nodes.Length; index++)
{
var node = skeleton.Nodes[index];
if (node.Name == nodeName)
{
nodeIndex = index;
}
}
}
var nodes = skeleton.Nodes;
var nodeTransformations = skeleton.NodeTransformations;
if (nodeIndex >= nodes.Length)
{
goto failed;
}
// Hopefully, if ref locals gets merged in roslyn, this code can be refactored
// Compute
matrix = nodeTransformations[nodeIndex].WorldMatrix;
return;
failed:
// Fallback to TransformComponent
matrix = parentModelComponent.Entity.Transform.WorldMatrix;
return;
}
public PhysicsElementInfo(PhysicsComponent component, SkeletonUpdater skeleton)
{
shape = component.ColliderShape;
var rigidbodyComponent = component as RigidbodyComponent;
isKinematic = rigidbodyComponent != null && rigidbodyComponent.IsKinematic;
colliderShapes = component.ColliderShapes != null?CloneDescs(component.ColliderShapes) : null;
var componentBase = component as PhysicsSkinnedComponentBase;
boneName = componentBase?.NodeName;
this.skeleton = skeleton;
boneIndex = componentBase?.BoneIndex ?? -1;
var triggerBase = component as PhysicsTriggerComponentBase;
isTrigger = triggerBase != null && triggerBase.IsTrigger;
}
/// <inheritdoc/>
public override void ComputeMatrix(bool recursive, out Matrix matrix)
{
// If model is not in the parent, we might want to force recursive update (since parentModelComponent might not be updated yet)
if (forceRecursive || recursive)
{
parentModelComponent.Entity.Transform.UpdateWorldMatrix();
}
if (parentModelComponent.Skeleton != skeleton || parentModelComponent.Skeleton != null && parentModelComponent.Skeleton.Nodes.Length != nodesLength)
{
skeleton = parentModelComponent.Skeleton;
if (skeleton != null)
{
nodesLength = parentModelComponent.Skeleton.Nodes.Length;
// Find our node index
nodeIndex = int.MaxValue;
for (int index = 0; index < skeleton.Nodes.Length; index++)
{
var node = skeleton.Nodes[index];
if (node.Name == nodeName)
{
nodeIndex = index;
}
}
}
}
// Updated? (rare slow path)
if (skeleton != null)
{
var nodes = skeleton.Nodes;
var nodeTransformations = skeleton.NodeTransformations;
if (nodeIndex < nodes.Length)
{
// Compute
matrix = nodeTransformations[nodeIndex].WorldMatrix;
return;
}
}
// Fallback to TransformComponent
matrix = parentModelComponent.Entity.Transform.WorldMatrix;
}
public bool HasChanged(PhysicsComponent component, SkeletonUpdater skeletonUpdater)
{
var componentBase = component as PhysicsSkinnedComponentBase;
var triggerBase = component as PhysicsTriggerComponentBase;
var newBoneName = componentBase?.NodeName;
var newIndex = componentBase?.BoneIndex ?? -1;
var rb = component as RigidbodyComponent;
return(shape != component.ColliderShape ||
(colliderShapes == null && component.ColliderShapes != null) ||
(colliderShapes != null && component.ColliderShapes == null) ||
DescsAreDifferent(colliderShapes, component.ColliderShapes) ||
component.ColliderShapeChanged ||
(rb != null && isKinematic != rb.IsKinematic) ||
skeleton != skeletonUpdater ||
boneIndex != newIndex ||
boneIndex == -1 && skeletonUpdater != null && !string.IsNullOrEmpty(boneName) || //force recreation if we have a skeleton?.. wrong name tho is also possible...
triggerBase != null && triggerBase.IsTrigger != isTrigger ||
shape != null && component.DebugEntity == null || //force recreation in this case as well
boneName != newBoneName);
}
private object ExportSkeleton(ICommandContext commandContext, ContentManager contentManager)
{
var skeleton = LoadSkeleton(commandContext, contentManager);
AdjustSkeleton(skeleton);
var modelNodes = new HashSet <string>(skeleton.Nodes.Select(x => x.Name));
var skeletonNodes = new HashSet <string>(SkeletonNodesWithPreserveInfo.Select(x => x.Key));
// List missing nodes on both sides, to display warnings
var missingNodesInModel = new HashSet <string>(skeletonNodes);
missingNodesInModel.ExceptWith(modelNodes);
var missingNodesInAsset = new HashSet <string>(modelNodes);
missingNodesInAsset.ExceptWith(skeletonNodes);
// Output warnings if skeleton was not properly reimported from latest FBX
if (missingNodesInAsset.Count > 0)
{
commandContext.Logger.Warning($"{missingNodesInAsset.Count} node(s) were present in model [{SourcePath}] but not in asset [{Location}], please reimport: {string.Join(", ", missingNodesInAsset)}");
}
if (missingNodesInModel.Count > 0)
{
commandContext.Logger.Warning($"{missingNodesInModel.Count} node(s) were present in asset [{Location}] but not in model [{SourcePath}], please reimport: {string.Join(", ", missingNodesInModel)}");
}
// Build node mapping to expected structure
var optimizedNodes = new HashSet <string>(SkeletonNodesWithPreserveInfo.Where(x => !x.Value).Select(x => x.Key));
// Refresh skeleton updater with loaded skeleton (to be able to compute matrices)
var hierarchyUpdater = new SkeletonUpdater(skeleton);
hierarchyUpdater.UpdateMatrices();
// Removed optimized nodes
var filteredSkeleton = new Skeleton {
Nodes = skeleton.Nodes.Where(x => !optimizedNodes.Contains(x.Name)).ToArray()
};
// Fix parent indices (since we removed some nodes)
for (int i = 0; i < filteredSkeleton.Nodes.Length; ++i)
{
var parentIndex = filteredSkeleton.Nodes[i].ParentIndex;
if (parentIndex != -1)
{
// Find appropriate parent to map to
var newParentIndex = -1;
while (newParentIndex == -1 && parentIndex != -1)
{
var nodeName = skeleton.Nodes[parentIndex].Name;
parentIndex = skeleton.Nodes[parentIndex].ParentIndex;
newParentIndex = filteredSkeleton.Nodes.IndexOf(x => x.Name == nodeName);
}
filteredSkeleton.Nodes[i].ParentIndex = newParentIndex;
}
}
// Generate mapping
var skeletonMapping = new SkeletonMapping(filteredSkeleton, skeleton);
// Children of remapped nodes need to have their matrices updated
for (int i = 0; i < skeleton.Nodes.Length; ++i)
{
// Skip node if it doesn't exist in source skeleton
if (skeletonMapping.SourceToSource[i] != i)
{
continue;
}
var node = skeleton.Nodes[i];
var filteredIndex = skeletonMapping.SourceToTarget[i];
var oldParentIndex = node.ParentIndex;
if (oldParentIndex != -1 && skeletonMapping.SourceToSource[oldParentIndex] != oldParentIndex)
{
// Compute matrix for intermediate missing nodes
var transformMatrix = CombineMatricesFromNodeIndices(hierarchyUpdater.NodeTransformations, skeletonMapping.SourceToSource[oldParentIndex], oldParentIndex);
var localMatrix = hierarchyUpdater.NodeTransformations[i].LocalMatrix;
// Combine it with local matrix, and use that instead in the new skeleton; resulting node should be same position as before optimized nodes were removed
localMatrix = Matrix.Multiply(localMatrix, transformMatrix);
localMatrix.Decompose(out filteredSkeleton.Nodes[filteredIndex].Transform.Scale, out filteredSkeleton.Nodes[filteredIndex].Transform.Rotation, out filteredSkeleton.Nodes[filteredIndex].Transform.Position);
}
}
return(filteredSkeleton);
}
private object ExportModel(ICommandContext commandContext, ContentManager contentManager)
{
// Read from model file
var modelSkeleton = LoadSkeleton(commandContext, contentManager); // we get model skeleton to compare it to real skeleton we need to map to
AdjustSkeleton(modelSkeleton);
var model = LoadModel(commandContext, contentManager);
if (!CheckInputSlots(commandContext, model))
{
return(null);
}
// Apply materials
foreach (var modelMaterial in Materials)
{
if (modelMaterial.MaterialInstance?.Material == null)
{
commandContext.Logger.Verbose($"The material [{modelMaterial.Name}] is null in the list of materials.");
}
model.Materials.Add(modelMaterial.MaterialInstance);
}
model.BoundingBox = BoundingBox.Empty;
Skeleton skeleton;
if (SkeletonUrl != null || !MergeMeshes)
{
if (SkeletonUrl != null)
{
// Load the skeleton
skeleton = contentManager.Load <Skeleton>(SkeletonUrl);
}
else
{
skeleton = modelSkeleton;
SkeletonUrl = Location + "_Skeleton_" + Guid.NewGuid();
contentManager.Save(SkeletonUrl, skeleton);
}
// Assign skeleton to model
model.Skeleton = AttachedReferenceManager.CreateProxyObject <Skeleton>(AssetId.Empty, SkeletonUrl);
}
else
{
skeleton = null;
}
var skeletonMapping = new SkeletonMapping(skeleton, modelSkeleton);
// Refresh skeleton updater with model skeleton
var hierarchyUpdater = new SkeletonUpdater(modelSkeleton);
hierarchyUpdater.UpdateMatrices();
// Move meshes in the new nodes
foreach (var mesh in model.Meshes)
{
// Apply scale import on meshes
if (!MathUtil.NearEqual(ScaleImport, 1.0f))
{
var transformationMatrix = Matrix.Scaling(ScaleImport);
for (int vbIdx = 0; vbIdx < mesh.Draw.VertexBuffers.Length; vbIdx++)
{
mesh.Draw.VertexBuffers[vbIdx].TransformBuffer(ref transformationMatrix);
}
}
var skinning = mesh.Skinning;
if (skinning != null)
{
// Update node mapping
// Note: we only remap skinning matrices, but we could directly remap skinning bones instead
for (int i = 0; i < skinning.Bones.Length; ++i)
{
var linkNodeIndex = skinning.Bones[i].NodeIndex;
var newLinkNodeIndex = skeletonMapping.SourceToSource[linkNodeIndex];
var nodeIndex = mesh.NodeIndex;
var newNodeIndex = skeletonMapping.SourceToSource[mesh.NodeIndex];
skinning.Bones[i].NodeIndex = skeletonMapping.SourceToTarget[linkNodeIndex];
// Adjust scale import
if (!MathUtil.NearEqual(ScaleImport, 1.0f))
{
skinning.Bones[i].LinkToMeshMatrix.TranslationVector = skinning.Bones[i].LinkToMeshMatrix.TranslationVector * ScaleImport;
}
// If it was remapped, we also need to update matrix
if (nodeIndex != newNodeIndex)
{
// Update mesh part
var transformMatrix = CombineMatricesFromNodeIndices(hierarchyUpdater.NodeTransformations, newNodeIndex, nodeIndex);
transformMatrix.Invert();
skinning.Bones[i].LinkToMeshMatrix = Matrix.Multiply(transformMatrix, skinning.Bones[i].LinkToMeshMatrix);
}
if (newLinkNodeIndex != linkNodeIndex)
{
// Update link part
var transformLinkMatrix = CombineMatricesFromNodeIndices(hierarchyUpdater.NodeTransformations, newLinkNodeIndex, linkNodeIndex);
skinning.Bones[i].LinkToMeshMatrix = Matrix.Multiply(skinning.Bones[i].LinkToMeshMatrix, transformLinkMatrix);
}
}
}
// Check if there was a remap using model skeleton
if (skeletonMapping.SourceToSource[mesh.NodeIndex] != mesh.NodeIndex)
{
// Transform vertices
var transformationMatrix = CombineMatricesFromNodeIndices(hierarchyUpdater.NodeTransformations, skeletonMapping.SourceToSource[mesh.NodeIndex], mesh.NodeIndex);
for (int vbIdx = 0; vbIdx < mesh.Draw.VertexBuffers.Length; vbIdx++)
{
mesh.Draw.VertexBuffers[vbIdx].TransformBuffer(ref transformationMatrix);
}
// Check if geometry is inverted, to know if we need to reverse winding order
// TODO: What to do if there is no index buffer? We should create one... (not happening yet)
if (mesh.Draw.IndexBuffer == null)
{
throw new InvalidOperationException();
}
Matrix rotation;
Vector3 scale, translation;
if (transformationMatrix.Decompose(out scale, out rotation, out translation) &&
scale.X * scale.Y * scale.Z < 0)
{
mesh.Draw.ReverseWindingOrder();
}
}
// Update new node index using real asset skeleton
mesh.NodeIndex = skeletonMapping.SourceToTarget[mesh.NodeIndex];
}
// Apply custom model modifiers
if (ModelModifiers != null)
{
foreach (var modifier in ModelModifiers)
{
modifier.Apply(commandContext, model);
}
}
// Merge meshes with same parent nodes, material and skinning
var meshesByNodes = model.Meshes.GroupBy(x => x.NodeIndex).ToList();
foreach (var meshesByNode in meshesByNodes)
{
// This logic to detect similar material is kept from old code; this should be reviewed/improved at some point
foreach (var meshesPerDrawCall in meshesByNode.GroupBy(x => x,
new AnonymousEqualityComparer <Mesh>((x, y) =>
x.MaterialIndex == y.MaterialIndex && // Same material
ArrayExtensions.ArraysEqual(x.Skinning?.Bones, y.Skinning?.Bones) && // Same bones
CompareParameters(model, x, y) && // Same parameters
CompareShadowOptions(model, x, y), // Same shadow parameters
x => 0)).ToList())
{
if (meshesPerDrawCall.Count() == 1)
{
// Nothing to group, skip to next entry
continue;
}
// Remove old meshes
foreach (var mesh in meshesPerDrawCall)
{
model.Meshes.Remove(mesh);
}
// Add new combined mesh(es)
var baseMesh = meshesPerDrawCall.First();
var newMeshList = meshesPerDrawCall.Select(x => x.Draw).ToList().GroupDrawData(Allow32BitIndex);
foreach (var generatedMesh in newMeshList)
{
model.Meshes.Add(new Mesh(generatedMesh, baseMesh.Parameters)
{
MaterialIndex = baseMesh.MaterialIndex,
Name = baseMesh.Name,
Draw = generatedMesh,
NodeIndex = baseMesh.NodeIndex,
Skinning = baseMesh.Skinning,
});
}
}
}
// split the meshes if necessary
model.Meshes = SplitExtensions.SplitMeshes(model.Meshes, Allow32BitIndex);
// Refresh skeleton updater with asset skeleton
hierarchyUpdater = new SkeletonUpdater(skeleton);
hierarchyUpdater.UpdateMatrices();
// bounding boxes
var modelBoundingBox = model.BoundingBox;
var modelBoundingSphere = model.BoundingSphere;
foreach (var mesh in model.Meshes)
{
var vertexBuffers = mesh.Draw.VertexBuffers;
for (int vbIdx = 0; vbIdx < vertexBuffers.Length; vbIdx++)
{
// Compute local mesh bounding box (no node transformation)
Matrix matrix = Matrix.Identity;
mesh.BoundingBox = vertexBuffers[vbIdx].ComputeBounds(ref matrix, out mesh.BoundingSphere);
// Compute model bounding box (includes node transformation)
hierarchyUpdater.GetWorldMatrix(mesh.NodeIndex, out matrix);
BoundingSphere meshBoundingSphere;
var meshBoundingBox = vertexBuffers[vbIdx].ComputeBounds(ref matrix, out meshBoundingSphere);
BoundingBox.Merge(ref modelBoundingBox, ref meshBoundingBox, out modelBoundingBox);
BoundingSphere.Merge(ref modelBoundingSphere, ref meshBoundingSphere, out modelBoundingSphere);
}
// TODO: temporary Always try to compact
mesh.Draw.CompactIndexBuffer();
}
model.BoundingBox = modelBoundingBox;
model.BoundingSphere = modelBoundingSphere;
// Count unique meshes (they can be shared)
var uniqueDrawMeshes = model.Meshes.Select(x => x.Draw).Distinct();
// Count unique vertex buffers and squish them together in a single buffer
var uniqueVB = uniqueDrawMeshes.SelectMany(x => x.VertexBuffers).Distinct().ToList();
var vbMap = new Dictionary <VertexBufferBinding, VertexBufferBinding>();
var sizeVertexBuffer = uniqueVB.Select(x => x.Buffer.GetSerializationData().Content.Length).Sum();
var vertexBuffer = new BufferData(BufferFlags.VertexBuffer, new byte[sizeVertexBuffer]);
var vertexBufferSerializable = vertexBuffer.ToSerializableVersion();
var vertexBufferNextIndex = 0;
foreach (var vbBinding in uniqueVB)
{
var oldVertexBuffer = vbBinding.Buffer.GetSerializationData().Content;
Array.Copy(oldVertexBuffer, 0, vertexBuffer.Content, vertexBufferNextIndex, oldVertexBuffer.Length);
vbMap.Add(vbBinding, new VertexBufferBinding(vertexBufferSerializable, vbBinding.Declaration, vbBinding.Count, vbBinding.Stride, vertexBufferNextIndex));
vertexBufferNextIndex += oldVertexBuffer.Length;
}
// Count unique index buffers and squish them together in a single buffer
var uniqueIB = uniqueDrawMeshes.Select(x => x.IndexBuffer).NotNull().Distinct().ToList();
var sizeIndexBuffer = 0;
foreach (var ibBinding in uniqueIB)
{
// Make sure 32bit indices are properly aligned to 4 bytes in case the last alignment was 2 bytes
if (ibBinding.Is32Bit && sizeIndexBuffer % 4 != 0)
{
sizeIndexBuffer += 2;
}
sizeIndexBuffer += ibBinding.Buffer.GetSerializationData().Content.Length;
}
var ibMap = new Dictionary <IndexBufferBinding, IndexBufferBinding>();
if (uniqueIB.Count > 0)
{
var indexBuffer = new BufferData(BufferFlags.IndexBuffer, new byte[sizeIndexBuffer]);
var indexBufferSerializable = indexBuffer.ToSerializableVersion();
var indexBufferNextIndex = 0;
foreach (var ibBinding in uniqueIB)
{
var oldIndexBuffer = ibBinding.Buffer.GetSerializationData().Content;
// Make sure 32bit indices are properly aligned to 4 bytes in case the last alignment was 2 bytes
if (ibBinding.Is32Bit && indexBufferNextIndex % 4 != 0)
{
indexBufferNextIndex += 2;
}
Array.Copy(oldIndexBuffer, 0, indexBuffer.Content, indexBufferNextIndex, oldIndexBuffer.Length);
ibMap.Add(ibBinding, new IndexBufferBinding(indexBufferSerializable, ibBinding.Is32Bit, ibBinding.Count, indexBufferNextIndex));
indexBufferNextIndex += oldIndexBuffer.Length;
}
}
// Assign new vertex and index buffer bindings
foreach (var drawMesh in uniqueDrawMeshes)
{
for (int i = 0; i < drawMesh.VertexBuffers.Length; i++)
{
drawMesh.VertexBuffers[i] = vbMap[drawMesh.VertexBuffers[i]];
}
if (drawMesh.IndexBuffer != null)
{
drawMesh.IndexBuffer = ibMap[drawMesh.IndexBuffer];
}
}
vbMap.Clear();
ibMap.Clear();
// Convert to Entity
return(model);
}
private object ExportModel(ICommandContext commandContext, ContentManager contentManager)
{
// Read from model file
var modelSkeleton = LoadSkeleton(commandContext, contentManager); // we get model skeleton to compare it to real skeleton we need to map to
AdjustSkeleton(modelSkeleton);
var model = LoadModel(commandContext, contentManager);
// Apply materials
foreach (var modelMaterial in Materials)
{
if (modelMaterial.MaterialInstance?.Material == null)
{
commandContext.Logger.Warning($"The material [{modelMaterial.Name}] is null in the list of materials.");
}
model.Materials.Add(modelMaterial.MaterialInstance);
}
model.BoundingBox = BoundingBox.Empty;
foreach (var mesh in model.Meshes)
{
if (TessellationAEN)
{
// TODO: Generate AEN model view
commandContext.Logger.Error("TessellationAEN is not supported in {0}", ContextAsString);
}
}
SkeletonMapping skeletonMapping;
Skeleton skeleton;
if (SkeletonUrl != null)
{
// Load skeleton and process it
skeleton = contentManager.Load <Skeleton>(SkeletonUrl);
// Assign skeleton to model
model.Skeleton = AttachedReferenceManager.CreateProxyObject <Skeleton>(Guid.Empty, SkeletonUrl);
}
else
{
skeleton = null;
}
skeletonMapping = new SkeletonMapping(skeleton, modelSkeleton);
// Refresh skeleton updater with model skeleton
var hierarchyUpdater = new SkeletonUpdater(modelSkeleton);
hierarchyUpdater.UpdateMatrices();
// Move meshes in the new nodes
foreach (var mesh in model.Meshes)
{
// Apply scale import on meshes
if (!MathUtil.NearEqual(ScaleImport, 1.0f))
{
var transformationMatrix = Matrix.Scaling(ScaleImport);
mesh.Draw.VertexBuffers[0].TransformBuffer(ref transformationMatrix);
}
var skinning = mesh.Skinning;
if (skinning != null)
{
// Update node mapping
// Note: we only remap skinning matrices, but we could directly remap skinning bones instead
for (int i = 0; i < skinning.Bones.Length; ++i)
{
var linkNodeIndex = skinning.Bones[i].NodeIndex;
var newLinkNodeIndex = skeletonMapping.SourceToSource[linkNodeIndex];
var nodeIndex = mesh.NodeIndex;
var newNodeIndex = skeletonMapping.SourceToSource[mesh.NodeIndex];
skinning.Bones[i].NodeIndex = skeletonMapping.SourceToTarget[linkNodeIndex];
// Adjust scale import
if (!MathUtil.NearEqual(ScaleImport, 1.0f))
{
skinning.Bones[i].LinkToMeshMatrix.TranslationVector = skinning.Bones[i].LinkToMeshMatrix.TranslationVector * ScaleImport;
}
// If it was remapped, we also need to update matrix
if (nodeIndex != newNodeIndex)
{
// Update mesh part
var transformMatrix = CombineMatricesFromNodeIndices(hierarchyUpdater.NodeTransformations, newNodeIndex, nodeIndex);
transformMatrix.Invert();
skinning.Bones[i].LinkToMeshMatrix = Matrix.Multiply(transformMatrix, skinning.Bones[i].LinkToMeshMatrix);
}
if (newLinkNodeIndex != linkNodeIndex)
{
// Update link part
var transformLinkMatrix = CombineMatricesFromNodeIndices(hierarchyUpdater.NodeTransformations, newLinkNodeIndex, linkNodeIndex);
skinning.Bones[i].LinkToMeshMatrix = Matrix.Multiply(skinning.Bones[i].LinkToMeshMatrix, transformLinkMatrix);
}
}
}
// Check if there was a remap using model skeleton
if (skeletonMapping.SourceToSource[mesh.NodeIndex] != mesh.NodeIndex)
{
// Transform vertices
var transformationMatrix = CombineMatricesFromNodeIndices(hierarchyUpdater.NodeTransformations, skeletonMapping.SourceToSource[mesh.NodeIndex], mesh.NodeIndex);
mesh.Draw.VertexBuffers[0].TransformBuffer(ref transformationMatrix);
// Check if geometry is inverted, to know if we need to reverse winding order
// TODO: What to do if there is no index buffer? We should create one... (not happening yet)
if (mesh.Draw.IndexBuffer == null)
{
throw new InvalidOperationException();
}
Matrix rotation;
Vector3 scale, translation;
if (transformationMatrix.Decompose(out scale, out rotation, out translation) &&
scale.X * scale.Y * scale.Z < 0)
{
mesh.Draw.ReverseWindingOrder();
}
}
// Update new node index using real asset skeleton
mesh.NodeIndex = skeletonMapping.SourceToTarget[mesh.NodeIndex];
}
// Merge meshes with same parent nodes, material and skinning
var meshesByNodes = model.Meshes.GroupBy(x => x.NodeIndex).ToList();
foreach (var meshesByNode in meshesByNodes)
{
// This logic to detect similar material is kept from old code; this should be reviewed/improved at some point
foreach (var meshesPerDrawCall in meshesByNode.GroupBy(x => x,
new AnonymousEqualityComparer <Mesh>((x, y) =>
x.MaterialIndex == y.MaterialIndex && // Same material
ArrayExtensions.ArraysEqual(x.Skinning?.Bones, y.Skinning?.Bones) && // Same bones
CompareParameters(model, x, y) && // Same parameters
CompareShadowOptions(model, x, y), // Same shadow parameters
x => 0)).ToList())
{
if (meshesPerDrawCall.Count() == 1)
{
// Nothing to group, skip to next entry
continue;
}
// Remove old meshes
foreach (var mesh in meshesPerDrawCall)
{
model.Meshes.Remove(mesh);
}
// Add new combined mesh(es)
var baseMesh = meshesPerDrawCall.First();
var newMeshList = meshesPerDrawCall.Select(x => x.Draw).ToList().GroupDrawData(Allow32BitIndex);
foreach (var generatedMesh in newMeshList)
{
model.Meshes.Add(new Mesh(generatedMesh, baseMesh.Parameters)
{
MaterialIndex = baseMesh.MaterialIndex,
Name = baseMesh.Name,
Draw = generatedMesh,
NodeIndex = baseMesh.NodeIndex,
Skinning = baseMesh.Skinning,
});
}
}
}
// split the meshes if necessary
model.Meshes = SplitExtensions.SplitMeshes(model.Meshes, Allow32BitIndex);
// Refresh skeleton updater with asset skeleton
hierarchyUpdater = new SkeletonUpdater(skeleton);
hierarchyUpdater.UpdateMatrices();
// bounding boxes
var modelBoundingBox = model.BoundingBox;
var modelBoundingSphere = model.BoundingSphere;
foreach (var mesh in model.Meshes)
{
var vertexBuffers = mesh.Draw.VertexBuffers;
if (vertexBuffers.Length > 0)
{
// Compute local mesh bounding box (no node transformation)
Matrix matrix = Matrix.Identity;
mesh.BoundingBox = vertexBuffers[0].ComputeBounds(ref matrix, out mesh.BoundingSphere);
// Compute model bounding box (includes node transformation)
hierarchyUpdater.GetWorldMatrix(mesh.NodeIndex, out matrix);
BoundingSphere meshBoundingSphere;
var meshBoundingBox = vertexBuffers[0].ComputeBounds(ref matrix, out meshBoundingSphere);
BoundingBox.Merge(ref modelBoundingBox, ref meshBoundingBox, out modelBoundingBox);
BoundingSphere.Merge(ref modelBoundingSphere, ref meshBoundingSphere, out modelBoundingSphere);
}
// TODO: temporary Always try to compact
mesh.Draw.CompactIndexBuffer();
}
model.BoundingBox = modelBoundingBox;
model.BoundingSphere = modelBoundingSphere;
// merges all the Draw VB and IB together to produce one final VB and IB by entity.
var sizeVertexBuffer = model.Meshes.SelectMany(x => x.Draw.VertexBuffers).Select(x => x.Buffer.GetSerializationData().Content.Length).Sum();
var sizeIndexBuffer = 0;
foreach (var x in model.Meshes)
{
// Let's be aligned (if there was 16bit indices before, we might be off)
if (x.Draw.IndexBuffer.Is32Bit && sizeIndexBuffer % 4 != 0)
{
sizeIndexBuffer += 2;
}
sizeIndexBuffer += x.Draw.IndexBuffer.Buffer.GetSerializationData().Content.Length;
}
var vertexBuffer = new BufferData(BufferFlags.VertexBuffer, new byte[sizeVertexBuffer]);
var indexBuffer = new BufferData(BufferFlags.IndexBuffer, new byte[sizeIndexBuffer]);
// Note: reusing same instance, to avoid having many VB with same hash but different URL
var vertexBufferSerializable = vertexBuffer.ToSerializableVersion();
var indexBufferSerializable = indexBuffer.ToSerializableVersion();
var vertexBufferNextIndex = 0;
var indexBufferNextIndex = 0;
foreach (var drawMesh in model.Meshes.Select(x => x.Draw))
{
// the index buffer
var oldIndexBuffer = drawMesh.IndexBuffer.Buffer.GetSerializationData().Content;
// Let's be aligned (if there was 16bit indices before, we might be off)
if (drawMesh.IndexBuffer.Is32Bit && indexBufferNextIndex % 4 != 0)
{
indexBufferNextIndex += 2;
}
Array.Copy(oldIndexBuffer, 0, indexBuffer.Content, indexBufferNextIndex, oldIndexBuffer.Length);
drawMesh.IndexBuffer = new IndexBufferBinding(indexBufferSerializable, drawMesh.IndexBuffer.Is32Bit, drawMesh.IndexBuffer.Count, indexBufferNextIndex);
indexBufferNextIndex += oldIndexBuffer.Length;
// the vertex buffers
for (int index = 0; index < drawMesh.VertexBuffers.Length; index++)
{
var vertexBufferBinding = drawMesh.VertexBuffers[index];
var oldVertexBuffer = vertexBufferBinding.Buffer.GetSerializationData().Content;
Array.Copy(oldVertexBuffer, 0, vertexBuffer.Content, vertexBufferNextIndex, oldVertexBuffer.Length);
drawMesh.VertexBuffers[index] = new VertexBufferBinding(vertexBufferSerializable, vertexBufferBinding.Declaration, vertexBufferBinding.Count, vertexBufferBinding.Stride,
vertexBufferNextIndex);
vertexBufferNextIndex += oldVertexBuffer.Length;
}
}
// Convert to Entity
return(model);
}