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Fix T51390: Blender 2.78c will freeze or force close when adding particles at random. 

DM evaluation code was simply never clearing the `deformedOnly` flag
when evaluating a generative modifier...

Quite astonishing this never got catched before, a lot of particle code
relies on valid value of this flag!!!
This commit is contained in:
Bastien Montagne 2017-05-29 16:05:35 +02:00
parent 08b7955415
commit 06ca2c9d03
Notes: blender-bot 2023-02-14 07:00:21 +01:00 
Referenced by issue #51390, Blender 2 .78c will freeze or force close when adding particles at random.
1 changed files with 4 additions and 0 deletions
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4
source/blender/blenkernel/intern/DerivedMesh.c
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@ -2123,6 +2123,8 @@ static void mesh_calc_modifiers(
DM_update_weight_mcol(ob, dm, draw_flag, NULL, 0, NULL);
append_mask |= CD_MASK_PREVIEW_MLOOPCOL;
}
dm->deformedOnly = false;
}
isPrevDeform = (mti->type == eModifierTypeType_OnlyDeform);
@ -2463,6 +2465,8 @@ static void editbmesh_calc_modifiers(
deformedVerts = NULL;
}
}
dm->deformedOnly = false;
}
/* In case of active preview modifier, make sure preview mask remains for following modifiers. */