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Changing indexFormat for the imported mesh from 16 bit to 32 bit. #1254

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Changing indexFormat for the imported mesh from 16 bit to 32 bit. #1254

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3 changes: 3 additions & 0 deletions unity/Editor/Importer/StlMeshParser.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -60,11 +60,13 @@ public static Mesh ParseBinary(byte[] stlFileContents, Vector3 scale) {
reader.ReadBytes(_headerLength);
var numTriangles = reader.ReadUInt32();
var numVertices = numTriangles * _verticesPerTriangle;
/*
if (numVertices > _unityLimitNumVerticesPerMesh) {
throw new IndexOutOfRangeException(
"The mesh exceeds the number of vertices per mesh allowed by Unity. " +
$"({numVertices} > {_unityLimitNumVerticesPerMesh})");
}
*/
var triangleIndices = new List<int>(capacity: (int)numVertices);
var vertices = new List<Vector3>(capacity: (int)numVertices);
var normals = new List<Vector3>(capacity: (int)numVertices);
Expand All @@ -80,6 +82,7 @@ public static Mesh ParseBinary(byte[] stlFileContents, Vector3 scale) {
}

var mesh = new Mesh();
mesh.indexFormat = UnityEngine.Rendering.IndexFormat.UInt32;
mesh.vertices = vertices.ToArray();
mesh.normals = normals.ToArray();
mesh.triangles = triangleIndices.ToArray();
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