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Load UV coordinates from 3MF file

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CURA-12544
This commit is contained in:
Erwan MATHIEU 2025-05-28 11:00:55 +02:00
parent b298fa6b39
commit 96d2caf195
1 changed files with 13 additions and 6 deletions
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19
plugins/3MFReader/ThreeMFReader.py
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@ -94,7 +94,7 @@ class ThreeMFReader(MeshReader):
return temp_mat
@staticmethod
def _convertSavitarNodeToUMNode(savitar_node: Savitar.SceneNode, file_name: str = "", archive: zipfile.ZipFile = None) -> Optional[SceneNode]:
def _convertSavitarNodeToUMNode(savitar_node: Savitar.SceneNode, file_name: str = "", archive: zipfile.ZipFile = None, scene: Savitar.Scene = None) -> Optional[SceneNode]:
"""Convenience function that converts a SceneNode object (as obtained from libSavitar) to a scene node.
:returns: Scene node.
@ -131,12 +131,19 @@ class ThreeMFReader(MeshReader):
um_node.setTransformation(transformation)
mesh_builder = MeshBuilder()
data = numpy.fromstring(savitar_node.getMeshData().getFlatVerticesAsBytes(), dtype=numpy.float32)
mesh_data = savitar_node.getMeshData()
vertices_data = numpy.fromstring(mesh_data.getFlatVerticesAsBytes(), dtype=numpy.float32)
vertices = numpy.resize(vertices_data, (int(vertices_data.size / 3), 3))
texture_path = mesh_data.getTexturePath(scene)
uv_data = numpy.fromstring(mesh_data.getUVCoordinatesPerVertexAsBytes(scene), dtype=numpy.float32)
uv_coordinates = numpy.resize(uv_data, (int(uv_data.size / 2), 2))
vertices = numpy.resize(data, (int(data.size / 3), 3))
mesh_builder.setVertices(vertices)
mesh_builder.calculateNormals(fast=True)
mesh_builder.setMeshId(node_id)
mesh_builder.setUVCoordinates(uv_coordinates)
if file_name:
# The filename is used to give the user the option to reload the file if it is changed on disk
# It is only set for the root node of the 3mf file
@ -147,7 +154,7 @@ class ThreeMFReader(MeshReader):
um_node.setMeshData(mesh_data)
for child in savitar_node.getChildren():
child_node = ThreeMFReader._convertSavitarNodeToUMNode(child, archive=archive)
child_node = ThreeMFReader._convertSavitarNodeToUMNode(child, archive=archive, scene=scene)
if child_node:
um_node.addChild(child_node)
@ -236,7 +243,7 @@ class ThreeMFReader(MeshReader):
CuraApplication.getInstance().getController().getScene().setMetaDataEntry(key, value)
for node in scene_3mf.getSceneNodes():
um_node = ThreeMFReader._convertSavitarNodeToUMNode(node, file_name, archive)
um_node = ThreeMFReader._convertSavitarNodeToUMNode(node, file_name, archive, scene_3mf)
if um_node is None:
continue
@ -336,7 +343,7 @@ class ThreeMFReader(MeshReader):
# Convert the scene to scene nodes
nodes = []
for savitar_node in scene.getSceneNodes():
scene_node = ThreeMFReader._convertSavitarNodeToUMNode(savitar_node, "file_name")
scene_node = ThreeMFReader._convertSavitarNodeToUMNode(savitar_node, "file_name", scene=scene)
if scene_node is None:
continue
nodes.append(scene_node)