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simplify window_to_3d_vector() and call it from viewline()

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also update python view function to match.
This commit is contained in:
Campbell Barton
2011-05-20 10:28:40 +00:00
parent 2999d0fad9
commit 4916c44af8
4 changed files with 31 additions and 51 deletions
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18
release/scripts/modules/bpy_extras/view3d_utils.py
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@@ -36,17 +36,19 @@ def region_2d_to_vector_3d(region, rv3d, coord):
"""
from mathutils import Vector
viewvec = rv3d.view_matrix.inverted()[2].xyz.normalized()
if rv3d.is_perspective:
dx = (2.0 * coord[0] / region.width) - 1.0
dy = (2.0 * coord[1] / region.height) - 1.0
persinv = rv3d.perspective_matrix.inverted()
persmat = rv3d.perspective_matrix.copy()
perspinv_x, perspinv_y = persmat.inverted().to_3x3()[0:2]
return ((perspinv_x * dx + perspinv_y * dy) - viewvec).normalized()
out = Vector(((2.0 * coord[0] / region.width) - 1.0,
(2.0 * coord[1] / region.height) - 1.0,
-0.5
))
w = (out[0] * persinv[0][3]) + (out[1] * persinv[1][3]) + (out[2] * persinv[2][3]) + persinv[3][3]
return ((out * persinv) / w) - rv3d.view_matrix.inverted()[3].xyz
else:
return viewvec
return rv3d.view_matrix.inverted()[2].xyz.normalized()
def region_2d_to_location_3d(region, rv3d, coord, depth_location):