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Add initial shape key support

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This commit is contained in:
ackwell 2023-12-31 16:10:20 +11:00
parent 309f0351fa
commit 989915ddbe
1 changed files with 40 additions and 2 deletions
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42
Penumbra/Import/Models/MeshConverter.cs
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@ -100,14 +100,52 @@ public sealed class MeshConverter
var primitiveBuilder = meshBuilder.UsePrimitive(materialBuilder);
// Store a list of the glTF indices. The list index will be equivalent to the xiv (submesh) index.
var gltfIndices = new List<int>();
// All XIV meshes use triangle lists.
// TODO: split by submeshes
for (var indexOffset = 0; indexOffset < submesh.IndexCount; indexOffset += 3)
primitiveBuilder.AddTriangle(
{
var (a, b, c) = primitiveBuilder.AddTriangle(
vertices[indices[indexOffset + startIndex + 0]],
vertices[indices[indexOffset + startIndex + 1]],
vertices[indices[indexOffset + startIndex + 2]]
);
gltfIndices.AddRange([a, b, c]);
}
var primitiveVertices = meshBuilder.Primitives.First().Vertices;
var shapeNames = new List<string>();
foreach (var shape in _mdl.Shapes)
{
// Filter down to shape values for the current mesh that sit within the bounds of the current submesh.
var shapeValues = _mdl.ShapeMeshes
.Skip(shape.ShapeMeshStartIndex[_lod])
.Take(shape.ShapeMeshCount[_lod])
.Where(shapeMesh => shapeMesh.MeshIndexOffset == Mesh.StartIndex)
.SelectMany(shapeMesh =>
_mdl.ShapeValues
.Skip((int)shapeMesh.ShapeValueOffset)
.Take((int)shapeMesh.ShapeValueCount)
)
.Where(shapeValue =>
shapeValue.BaseIndicesIndex >= startIndex
&& shapeValue.BaseIndicesIndex < startIndex + submesh.IndexCount
)
.ToList();
if (shapeValues.Count == 0) continue;
var morphBuilder = meshBuilder.UseMorphTarget(shapeNames.Count);
shapeNames.Add(shape.ShapeName);
foreach (var shapeValue in shapeValues)
morphBuilder.SetVertex(
primitiveVertices[gltfIndices[shapeValue.BaseIndicesIndex - startIndex]].GetGeometry(),
vertices[shapeValue.ReplacingVertexIndex].GetGeometry()
);
}
return meshBuilder;
}