HUGE*MEMORY LEAK!!!!! How to remove the copy mesh generated by Object.to_mesh()?

Coding Python Support
1

Hi,

Because of Object.to_mesh() i have a huge memory leak. :no:
I don’t know how to delete the generated mesh by Object.to_mesh() function. Like the documentation say, i have to delete this output.

i have try:

del mesh

i have try:

bpy.data.meshes.remove(mesh)

The both doesn’t works. The huge memory leak stay.

Thanks.

2

After some tests, the memory leak doesn’t come from to_mesh.

It’s come from the function :


mathutils.bvhtree.BVHTree.FromPolygons

I have post the bug here:

https://developer.blender.org/T50029

I have try in many way to fill the input arrays. The problem stay the same.

 vertices = []
 indices = []
 for poly in mesh.polygons:
     poly_indices = []
     for loop_index in range(poly.loop_start, poly.loop_start + poly.loop_total):
         vertex_index = mesh.loops[loop_index].vertex_index
         poly_indices.append(vertex_index)
         vertex = obj.matrix_world * mesh.vertices[vertex_index].co
         vertices.append(vertex.xyz)
     indices.append(poly_indices)

vertices = []
<b>for </b>v <b>in </b>mesh.vertices:
    vertex = obj.matrix_world * v.co
    vertices.append(vertex.xyz)

indices = []
<b>for </b>poly <b>in </b>mesh.polygons:
    indices.append(poly.vertices)