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Add surface indices to TriangleMesh

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Helps unblock #56597
This commit is contained in:
reduz
2022-06-22 21:48:23 +02:00
parent ac51d5a1e9
commit 3d1ab570b9
3 changed files with 28 additions and 6 deletions
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11
scene/resources/mesh.cpp
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@@ -188,7 +188,10 @@ Ref<TriangleMesh> Mesh::generate_triangle_mesh() const {
Vector<Vector3> faces;
faces.resize(faces_size);
Vector<int32_t> surface_indices;
surface_indices.resize(faces_size / 3);
Vector3 *facesw = faces.ptrw();
int32_t *surface_indicesw = surface_indices.ptrw();
int widx = 0;
@@ -210,6 +213,8 @@ Ref<TriangleMesh> Mesh::generate_triangle_mesh() const {
Vector<Vector3> vertices = a[ARRAY_VERTEX];
const Vector3 *vr = vertices.ptr();
int32_t from_index = widx / 3;
if (surface_get_format(i) & ARRAY_FORMAT_INDEX) {
int ic = surface_get_array_index_len(i);
Vector<int> indices = a[ARRAY_INDEX];
@@ -241,6 +246,12 @@ Ref<TriangleMesh> Mesh::generate_triangle_mesh() const {
}
}
}
int32_t to_index = widx / 3;
for (int j = from_index; j < to_index; j++) {
surface_indicesw[j] = i;
}
}
triangle_mesh = Ref<TriangleMesh>(memnew(TriangleMesh));