Export to PLY of models with vertex colors broken #62256

New Issue

Paul Melis · 2019-03-06T13:25:35+01:00

Paul Melis commented

2019-03-06 13:25:35 +01:00

System Information
Operating system: Arch Linux
Graphics card: GTX TITAN

Blender Version

As shown in the splash screen:

Broken: 2.79b (hash 2c0c1f494dcf, 2018-12-12), identifies itself as "2.79.6", this is the Arch package blender-17:2.79.b.git4.2c0c1f49-3

Short description of error

Exporting a model with vertex colors to PLY fails with a Python exception:

Traceback (most recent call last):
  File "/usr/share/blender/2.79/scripts/addons/io_mesh_ply/__init__.py", line 159, in execute
    return export_ply.save(self, context, **keywords)
  File "/usr/share/blender/2.79/scripts/addons/io_mesh_ply/export_ply.py", line 221, in save
    use_colors=use_colors,
  File "/usr/share/blender/2.79/scripts/addons/io_mesh_ply/export_ply.py", line 171, in save_mesh
    fw(" %u %u %u %u" % v[3])  # col
TypeError: not enough arguments for format string

Exact steps for others to reproduce the error

Start with emty scene
Add a Cube mesh
Add a vertex color layer to the mesh
File -> Export -> PLY
Export
Exception during export

**System Information** Operating system: Arch Linux Graphics card: GTX TITAN **Blender Version** As shown in the splash screen: Broken: 2.79b (hash 2c0c1f494dcf, 2018-12-12), identifies itself as "2.79.6", this is the Arch package blender-17:2.79.b.git4.2c0c1f49-3 **Short description of error** Exporting a model with vertex colors to PLY fails with a Python exception: ``` Traceback (most recent call last): File "/usr/share/blender/2.79/scripts/addons/io_mesh_ply/__init__.py", line 159, in execute return export_ply.save(self, context, **keywords) File "/usr/share/blender/2.79/scripts/addons/io_mesh_ply/export_ply.py", line 221, in save use_colors=use_colors, File "/usr/share/blender/2.79/scripts/addons/io_mesh_ply/export_ply.py", line 171, in save_mesh fw(" %u %u %u %u" % v[3]) # col TypeError: not enough arguments for format string ``` **Exact steps for others to reproduce the error** 1. Start with emty scene 2. Add a Cube mesh 3. Add a vertex color layer to the mesh 4. File -> Export -> PLY 5. Export 6. Exception during export

Paul Melis commented

2019-03-06 13:25:35 +01:00

Added subscriber: @PaulMelis