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Add "ShouldNodeExport" hook #767

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Add "ShouldNodeExport" hook #767

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0dba6d0
Add plugin hook for ShouldNodeExport
andybak Jun 18, 2024
4776027
Merge remote-tracking branch 'upstream/main' into feature/should-node…
andybak Jul 24, 2024
c94e011
Revert automatic whitespace changes
andybak Aug 29, 2024
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9 changes: 7 additions & 2 deletions Runtime/Scripts/GLTFSceneExporter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1009,7 +1009,8 @@ private SceneId ExportScene(string name, Transform[] rootObjTransforms)
Debug.LogWarning("GLTFSceneExporter", $"Skipping empty transform in root transforms provided for scene export for {name}", transform);
continue;
}
scene.Nodes.Add(ExportNode(transform));
var node = ExportNode(transform);
if (node != null) scene.Nodes.Add(node);
}

_root.Scenes.Add(scene);
Expand All @@ -1028,6 +1029,9 @@ private NodeId ExportNode(Transform nodeTransform)
if (_exportedTransforms.TryGetValue(nodeTransform.GetInstanceID(), out var existingNodeId))
return new NodeId() { Id = existingNodeId, Root = _root };

foreach (var plugin in _plugins)
if (!(plugin?.ShouldNodeExport(this, _root, nodeTransform) ?? true)) return null;

exportNodeMarker.Begin();

var node = new Node();
Expand Down Expand Up @@ -1168,7 +1172,8 @@ private NodeId ExportNode(Transform nodeTransform)
foreach (var child in nonPrimitives)
{
if (!ShouldExportTransform(child.transform)) continue;
parentOfChilds.Children.Add(ExportNode(child.transform));
var childNode = ExportNode(child.transform);
if (childNode != null) parentOfChilds.Children.Add(childNode);
}
}

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1 change: 1 addition & 0 deletions Runtime/Scripts/Plugins/Core/GltfExportPlugin.cs
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Expand Up @@ -15,6 +15,7 @@ public abstract class GLTFExportPluginContext
{
public virtual void BeforeSceneExport(GLTFSceneExporter exporter, GLTFRoot gltfRoot) {}
public virtual void AfterSceneExport(GLTFSceneExporter exporter, GLTFRoot gltfRoot) {}
public virtual bool ShouldNodeExport(GLTFSceneExporter exporter, GLTFRoot gltfRoot, Transform transform) => true;
public virtual void BeforeNodeExport(GLTFSceneExporter exporter, GLTFRoot gltfRoot, Transform transform, Node node) {}
public virtual void AfterNodeExport(GLTFSceneExporter exporter, GLTFRoot gltfRoot, Transform transform, Node node) {}
public virtual bool BeforeMaterialExport(GLTFSceneExporter exporter, GLTFRoot gltfRoot, Material material, GLTFMaterial materialNode) => false;
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4 changes: 3 additions & 1 deletion Runtime/Scripts/Plugins/LodsExport.cs
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Expand Up @@ -46,7 +46,9 @@ public override void AfterNodeExport(GLTFSceneExporter exporter, GLTFRoot gltfro
return;
}

nodeIds[index] = exporter.ExportNode(lod.renderers[0].gameObject).Id;
var lodNode = exporter.ExportNode(lod.renderers[0].gameObject);
if (lodNode != null) nodeIds[index] = lodNode.Id;

coverages[index] = lod.screenRelativeTransitionHeight;
}
// if (usesCulling) coverages[coverages.Length - 1] = 0;
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