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Fix T64284 Mirrored Instances have flipped normals/face orientation 

It was a missing invert matrix update and also setting the OB_NEG_SCALE.

This defeats the purpose of not computing it in the draw manager but this
is more local and is have not a dramatic impact on performance.
This commit is contained in:
Clément Foucault 2019-05-10 14:46:01 +02:00
parent 259ebdd017
commit c0b8d071a7
Notes: blender-bot 2023-12-22 20:14:11 +01:00 
Referenced by issue #64284, Mirroed Collection Intances have flipped normals/face orientation.
1 changed files with 6 additions and 0 deletions
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6
source/blender/depsgraph/intern/depsgraph_query_iter.cc
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@ -158,7 +158,13 @@ bool deg_objects_dupli_iterator_next(BLI_Iterator *iter)
continue;
}
/* This could be avoided by refactoring make_dupli() in order to track all negative scaling
* recursively. */
bool is_neg_scale = is_negative_m4(dob->mat);
SET_FLAG_FROM_TEST(data->temp_dupli_object.transflag, is_neg_scale, OB_NEG_SCALE);
copy_m4_m4(data->temp_dupli_object.obmat, dob->mat);
invert_m4_m4(data->temp_dupli_object.imat, data->temp_dupli_object.obmat);
iter->current = &data->temp_dupli_object;
BLI_assert(DEG::deg_validate_copy_on_write_datablock(&data->temp_dupli_object.id));
return true;