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MeshExportSettings.ExportTangents

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#if を削減
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ousttrue
2021-04-09 19:00:14 +09:00
parent 6aa1455623
commit 42837bfff6
1 changed files with 40 additions and 18 deletions
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58
Assets/UniGLTF/Runtime/UniGLTF/IO/MeshExporter.cs
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@@ -23,17 +23,24 @@ namespace UniGLTF
// MorphTarget を Position だけにする(normal とか捨てる)
public bool ExportOnlyBlendShapePosition;
// tangent を出力する
public bool ExportTangents;
public static MeshExportSettings Default => new MeshExportSettings
{
UseSparseAccessorForMorphTarget = false,
ExportOnlyBlendShapePosition = false,
UseSharingVertexBuffer = true,
#if GLTF_EXPORT_TANGENTS
ExportTangents = true,
#endif
};
}
public static class MeshExporter
{
static glTFMesh ExportPrimitives(glTF gltf, int bufferIndex, Mesh mesh, Material[] meshMaterials, BoneWeight[] boneWeights, int[] jointIndexMap,
List<Material> exportedMaterials)
List<Material> exportedMaterials, MeshExportSettings settings)
{
var positions = mesh.vertices.Select(y => y.ReverseZ()).ToArray();
var positionAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, positions, glBufferTarget.ARRAY_BUFFER);
@@ -41,9 +48,13 @@ namespace UniGLTF
gltf.accessors[positionAccessorIndex].max = positions.Aggregate(positions[0], (a, b) => new Vector3(Mathf.Max(a.x, b.x), Math.Max(a.y, b.y), Mathf.Max(a.z, b.z))).ToArray();
var normalAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.normals.Select(y => y.normalized.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
#if GLTF_EXPORT_TANGENTS
var tangentAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.tangents.Select(y => y.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
#endif
int? tangentAccessorIndex = default;
if (settings.ExportTangents)
{
tangentAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.tangents.Select(y => y.ReverseZ()).ToArray(), glBufferTarget.ARRAY_BUFFER);
}
var uvAccessorIndex0 = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.uv.Select(y => y.ReverseUV()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var uvAccessorIndex1 = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.uv2.Select(y => y.ReverseUV()).ToArray(), glBufferTarget.ARRAY_BUFFER);
@@ -81,12 +92,12 @@ namespace UniGLTF
{
attributes.NORMAL = normalAccessorIndex;
}
#if GLTF_EXPORT_TANGENTS
if (tangentAccessorIndex != -1)
if (tangentAccessorIndex.HasValue)
{
attributes.TANGENT = tangentAccessorIndex;
attributes.TANGENT = tangentAccessorIndex.Value;
}
#endif
if (uvAccessorIndex0 != -1)
{
attributes.TEXCOORD_0 = uvAccessorIndex0;
@@ -160,7 +171,7 @@ namespace UniGLTF
static glTFMesh ExportPrimitives(glTF gltf, int bufferIndex,
MeshWithRenderer unityMesh, List<Material> unityMaterials,
IAxisInverter axisInverter)
IAxisInverter axisInverter, MeshExportSettings settings)
{
var mesh = unityMesh.Mesh;
var materials = unityMesh.Renderer.sharedMaterials;
@@ -170,9 +181,13 @@ namespace UniGLTF
gltf.accessors[positionAccessorIndex].max = positions.Aggregate(positions[0], (a, b) => new Vector3(Mathf.Max(a.x, b.x), Math.Max(a.y, b.y), Mathf.Max(a.z, b.z))).ToArray();
var normalAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.normals.Select(y => axisInverter.InvertVector3(y.normalized)).ToArray(), glBufferTarget.ARRAY_BUFFER);
#if GLTF_EXPORT_TANGENTS
var tangentAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.tangents.Select(axisInverter.InvertVector4()).ToArray(), glBufferTarget.ARRAY_BUFFER);
#endif
int? tangentAccessorIndex = default;
if (settings.ExportTangents)
{
tangentAccessorIndex = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.tangents.Select(axisInverter.InvertVector4).ToArray(), glBufferTarget.ARRAY_BUFFER);
}
var uvAccessorIndex0 = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.uv.Select(y => y.ReverseUV()).ToArray(), glBufferTarget.ARRAY_BUFFER);
var uvAccessorIndex1 = gltf.ExtendBufferAndGetAccessorIndex(bufferIndex, mesh.uv2.Select(y => y.ReverseUV()).ToArray(), glBufferTarget.ARRAY_BUFFER);
@@ -205,12 +220,12 @@ namespace UniGLTF
{
attributes.NORMAL = normalAccessorIndex;
}
#if GLTF_EXPORT_TANGENTS
if (tangentAccessorIndex != -1)
if (tangentAccessorIndex.HasValue)
{
attributes.TANGENT = tangentAccessorIndex;
attributes.TANGENT = tangentAccessorIndex.Value;
}
#endif
if (uvAccessorIndex0 != -1)
{
attributes.TEXCOORD_0 = uvAccessorIndex0;
@@ -435,8 +450,15 @@ namespace UniGLTF
MeshWithRenderer unityMesh, List<Material> unityMaterials,
MeshExportSettings settings, IAxisInverter axisInverter)
{
var gltfMesh = ExportPrimitives(gltf, bufferIndex,
unityMesh, unityMaterials, axisInverter);
glTFMesh gltfMesh = default;
if (settings.UseSharingVertexBuffer)
{
gltfMesh = ExportPrimitives(gltf, bufferIndex, unityMesh, unityMaterials, axisInverter, settings);
}
else
{
throw new NotImplementedException();
}
var targetNames = new List<string>();