diff options
author | Howard Trickey <howard.trickey@gmail.com> | 2017-05-16 14:19:01 +0300 |
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committer | Howard Trickey <howard.trickey@gmail.com> | 2017-05-16 14:19:01 +0300 |
commit | 8be9d68dd42d6831675356bfa0e1bf9274680df3 (patch) | |
tree | a1fba08b216e564e464d4b723bab1ce2a137a2e0 /source | |
parent | a70a7f9db368deefeb6d07e1c4e6c84f1ebad59a (diff) |
Fix T49467: Crash due to assert failure in bevel.
The mesh interpolation code had an edge case where one of two
adjacent edges to a vertex has 0 length. This caused an assert
failure indexing the vertex mesh for splash Blenderman.blend.
Diffstat (limited to 'source')
-rw-r--r-- | source/blender/bmesh/tools/bmesh_bevel.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/source/blender/bmesh/tools/bmesh_bevel.c b/source/blender/bmesh/tools/bmesh_bevel.c index 05169a2a976..a05c12a2730 100644 --- a/source/blender/bmesh/tools/bmesh_bevel.c +++ b/source/blender/bmesh/tools/bmesh_bevel.c @@ -2295,7 +2295,7 @@ static int interp_range(const float *frac, int n, const float f, float *r_rest) /* Interpolate given vmesh to make one with target nseg border vertices on the profiles */ static VMesh *interp_vmesh(BevelParams *bp, VMesh *vm0, int nseg) { - int n, ns0, nseg2, odd, i, j, k, j0, k0, k0prev; + int n, ns0, nseg2, odd, i, j, k, j0, k0, k0prev, j0inc, k0inc; float *prev_frac, *frac, *new_frac, *prev_new_frac; float f, restj, restk, restkprev; float quad[4][3], co[3], center[3]; @@ -2339,10 +2339,12 @@ static VMesh *interp_vmesh(BevelParams *bp, VMesh *vm0, int nseg) copy_v3_v3(co, mesh_vert_canon(vm0, i, j0, k0)->co); } else { + j0inc = (restj < BEVEL_EPSILON || j0 == ns0) ? 0 : 1; + k0inc = (restk < BEVEL_EPSILON || k0 == ns0) ? 0 : 1; copy_v3_v3(quad[0], mesh_vert_canon(vm0, i, j0, k0)->co); - copy_v3_v3(quad[1], mesh_vert_canon(vm0, i, j0, k0 + 1)->co); - copy_v3_v3(quad[2], mesh_vert_canon(vm0, i, j0 + 1, k0 + 1)->co); - copy_v3_v3(quad[3], mesh_vert_canon(vm0, i, j0 + 1, k0)->co); + copy_v3_v3(quad[1], mesh_vert_canon(vm0, i, j0, k0 + k0inc)->co); + copy_v3_v3(quad[2], mesh_vert_canon(vm0, i, j0 + j0inc, k0 + k0inc)->co); + copy_v3_v3(quad[3], mesh_vert_canon(vm0, i, j0 + j0inc, k0)->co); interp_bilinear_quad_v3(quad, restk, restj, co); } copy_v3_v3(mesh_vert(vm1, i, j, k)->co, co); |