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Fix T67889: Object Importer Error. 

Clamp input values to avoid invalid ones.
This commit is contained in:
Bastien Montagne 2019-07-30 11:23:12 +02:00
parent 5209139cc7
commit 27381001d7
Notes: blender-bot 2023-02-14 19:11:07 +01:00 
Referenced by issue #67889, Object Importer Error
2 changed files with 3 additions and 2 deletions
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2
io_scene_obj/__init__.py
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@ -21,7 +21,7 @@
bl_info = {
"name": "Wavefront OBJ format",
"author": "Campbell Barton, Bastien Montagne",
"version": (3, 5, 11),
"version": (3, 5, 12),
"blender": (2, 80, 0),
"location": "File > Import-Export",
"description": "Import-Export OBJ, Import OBJ mesh, UV's, materials and textures",

3
io_scene_obj/import_obj.py
View File

@ -357,7 +357,8 @@ def create_materials(filepath, relpath,
elif line_id == b'ns':
# XXX Totally empirical conversion, trying to adapt it
# (from 0.0 - 900.0 OBJ specular exponent range to 1.0 - 0.0 Principled BSDF range)...
context_mat_wrap.roughness = 1.0 - (sqrt(float_func(line_split[1])) / 30)
val = max(0.0, min(900.0, float_func(line_split[1])))
context_mat_wrap.roughness = 1.0 - (sqrt(val) / 30)
context_material_vars.add("roughness")
elif line_id == b'ni': # Refraction index (between 0.001 and 10).
context_mat_wrap.ior = float_func(line_split[1])