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snap_context module: use `intersect_line_plane` instead `intersect_ray_tri` 

`intersect_ray_tri` returns None when the ray is after the tri.
This commit is contained in:
Germano Cavalcante 2017-09-16 18:14:40 -03:00
parent f1e64d1d58
commit 485e71b7ce
1 changed files with 3 additions and 2 deletions
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5
modules/snap_context/__init__.py
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@ -19,7 +19,7 @@
import bgl
import gpu
from mathutils import Vector, Matrix
from mathutils.geometry import intersect_point_line, intersect_ray_tri
from mathutils.geometry import intersect_point_line, intersect_line_plane
from .mesh_drawing import (
gpu_Indices_enable_state,
@ -121,7 +121,8 @@ class SnapContext():
if index < snap_obj.data[1].num_tris:
tri_verts = gpu_data.get_tri_verts(index)
tri_co = [snap_obj.mat * Vector(v) for v in gpu_data.get_tri_co(index)]
return intersect_ray_tri(*tri_co, *self.last_ray, False), tri_verts
nor = (tri_co[1] - tri_co[0]).cross(tri_co[2] - tri_co[0])
return intersect_line_plane(self.last_ray[1], self.last_ray[1] + self.last_ray[0], tri_co[0], nor), tri_verts
index -= gpu_data.num_tris