DarklightGames/io_scene_psk_psa
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Fix error when attempting to export mesh with no UV layers

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The fallback behaviour is now to just output zeroes for the UVs if a mesh has no UV layers.
This commit is contained in:
Colin Basnett
2025-06-07 19:17:39 -07:00
parent 29831d7f09
commit 98968a8623
1 changed files with 15 additions and 9 deletions
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10
io_scene_psk_psa/psk/builder.py
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@@ -291,19 +291,25 @@ def build_psk(context: Context, input_objects: PskInputObjects, options: PskBuil
point.z = v.z point.z = v.z
psk.points.append(point) psk.points.append(point)
uv_layer = mesh_data.uv_layers.active.data
# Wedges # Wedges
mesh_data.calc_loop_triangles() mesh_data.calc_loop_triangles()
if mesh_data.uv_layers.active is None:
result.warnings.append(f'"{mesh_object.name}" has no active UV Map')
# Build a list of non-unique wedges. # Build a list of non-unique wedges.
wedges = [] wedges = []
if mesh_data.uv_layers.active:
uv_layer = mesh_data.uv_layers.active.data
for loop_index, loop in enumerate(mesh_data.loops): for loop_index, loop in enumerate(mesh_data.loops):
wedges.append(Psk.Wedge( wedges.append(Psk.Wedge(
point_index=loop.vertex_index + vertex_offset, point_index=loop.vertex_index + vertex_offset,
u=uv_layer[loop_index].uv[0], u=uv_layer[loop_index].uv[0],
v=1.0 - uv_layer[loop_index].uv[1] v=1.0 - uv_layer[loop_index].uv[1]
)) ))
else:
for loop_index, loop in enumerate(mesh_data.loops):
wedges.append(Psk.Wedge(point_index=loop.vertex_index + vertex_offset, u=0.0, v=0.0))
# Assign material indices to the wedges. # Assign material indices to the wedges.
for triangle in mesh_data.loop_triangles: for triangle in mesh_data.loop_triangles: